Hi there!
Just wanted to share my successful project: retrofitting an S90 power trunk lift into an S60 MY24!
What you will need to implement this project:
1. Purchase the necessary system components;
2. Install and connect them;
3. Activate the system in the configuration.
==================================================================
Project Components:
Control module: 31654859 or 31654192 or 32200068 or 31676619 or 32200220 or 31682760 or 32357499.
IMPORTANT — it must be specifically from an S90. Modules from other SPA platform models will not work, as they control two struts of a completely different length, and have different module pinouts and operating logic.
You can identify which exact module you have by the HW marking; it must be 31654193, 31676620, or 31682761.
The pins in the module connectors must look exactly like this!
This only works in combination with the module part numbers and the HW numbers on them.
The pins in the connectors on the V90 and V90CC are arranged the same way as on the S90.
However, a module from a V90/V90CC will most likely not work!
Power strut (1 pc): 31371787 or 31690206 (shielded) or 31690207 (unshielded)
Any of the above will work.
Ball stud for the power strut: 30640955
Round M8 x 20 nut (sleeve nut) or coupling nut.
M8 x 30 stud: cut the head off a bolt
The nut (sleeve nut) and stud are needed as a spacer to mount the power strut ball stud into the hole in the body.
There is no room for the power strut between the trunk lining and the wiring harness duct!
Therefore, it is IMPORTANT to install the power strut as close to the duct as possible, so that the trunk lining undergoes minimal deformation and bulges into the trunk as little as possible.
To achieve this, you need to cut off half of the thread on the ball stud (which is +/-10 mm).
In the end, you will get a fastening kit that looks like this.
It will be mount right here:
Power latch: 31484594 or 32149884 or 32149890.
(in fact, any power latch from the SPA platform will fit; I tried installing one from an XC60, and it fit perfectly in terms of both geometry and connection)
The button is chosen depending on the equipment package:
31427330 (with keyless entry and power tailgate)
31427329 (WITHOUT keyless entry, but with power tailgate)
Button bracket: 31426650
Nut retainer (clip nut) 2pcs: 1379804
Self-tapping screws 2pcs: 986116
Washers 2pcs: 986498
==================================================================
Connections:
Power Supply:
In the S90, power to the POT comes from fuse 9 (25 amps) in the trunk fuse box.
In the S60, it is not used, but you can run a line from there, or, to save yourself unnecessary work, you can take power from the TRM connector.
The TRM connector is located right in the right part of the trunk behind the lining.
This is exactly where the POT module itself and the power strut will be installed.
Two power wires come to the TRM connector: ACC (fuse 11, 40 amps) and VCC (fuse 18, 25 amps (for the control module) or 40 amps (for accessories)).
On my model year 2024 vehicle, these fuses were missing!
According to the fuse diagrams:
On 2017–2018 model year cars, these fuses were installed optionally.
On 2019–2022 model year cars, these fuses are present.
On 2023–present model year cars, these fuses were installed optionally.
So it is better to check whether they are present.
=================================
If connecting to the TRM connector, the power to the POT module must be taken from VCC (RD/WH) so that the module is constantly powered.
I decided to retrofit the car with a trunk power outlet 31346799 as well.
For the outlet, I will take the power from the same connector, but from ACC (RD/BN).
The ground point is nearby in the same area.
TRM power connector (it is already in the car, writing just for informational purposes) — Yazaki 7283-6458-40 (DJ70238-6.3-21)
Pins (female):
7116-4120-02 — for thin wires with a cross-section of 0.5 – 1.0 mm².
7116-4121-02 — for medium wires with a cross-section of 1.0 – 2.5 mm².
7116-4122-02 — for thick power wires with a cross-section of 3.0 – 4.0 mm².
Mating part (the one you need to buy) — Yazaki 7282-6458-40 (DJ70238-6.3-11)
Pins for the mating part (male):
7114-4120-02 — for thin wires with a cross-section of 0.5 – 1.0 mm².
7114-4121-02 — for medium wires with a cross-section of 1.0 – 2.5 mm².
7114-4122-02 — for thick power wires with a cross-section of 3.0 – 4.0 mm².
If you have a trailer hitch and a TRM module, you can make a splitter.
=================================
CAN bus:
The TRM signal connector (it is already in the car, writing just for informational purposes) is located next to the power one, and it is — IL-AG5-7S-S3C1 (DJ7071A-0.6-21).
Pins (female) — IL-AG5-C1-5000.
Mating part (the one you need to buy) — IL-AG5-7P-S3C1 (DJ7071A-0.6-11).
Pins (male) — IL-AG5-PC1-5000.
A reminder — to mitigate interference, the CAN bus wires must be run twisted together (as a twisted pair).
=================================
Connectors for plugging into the POT module:
Connector A (left on the module) — 7283-6447-40
This is a combined connector, so 2 types of pins are used.
Pins (female)
Outer power pins (2.8 mm width) — 4 pcs needed
7116-4110-02 — for wires with a cross-section of 0.3 – 0.5 mm²
7116-4111-02 — for medium wires with a cross-section of 0.75 – 1.25 mm²
7116-4112-02 — for thick power wires with a cross-section of 2.0 mm²
Central signal pins (1.5 mm width) — 10 pcs needed.
7116-4100-02 — for thin wires with a cross-section of 0.3 – 0.5 mm²
7116-4101-02 — for wires with a cross-section of 0.75 – 1.25 mm²
Connector B (right) — 1452839-5 (13837394)
Pins (female)
13933668 — for the thinnest signal wires with a cross-section of 0.22 – 0.35 mm²
13933669 — for wires with a cross-section of 0.50 – 0.75 mm²
or
1393366-1 (tin plating) — for thin wire (cross-section 0.22 – 0.35 mm² / 22-24 AWG)
1393366-3 — gold-plated alternative
1393367-1 (tin plating) — for standard wire (cross-section 0.50 – 0.75 mm² / 18-20 AWG)
1393367-3 — gold-plated alternative
=================================
Connector for plugging in the power strut:
This connector is also combined.
There are 2 power contacts in the center and 8 more signal contacts along the edges.
Part number — 1563125-1 (DJ7101-1.2-2.8-11) (7P0972725)
Pins (male)
Central power pins (2 pieces in the center)
Flat 2.8 mm width contacts of the TE MCP 2.8 series are used
1-968853-1 (for standard wire cross-sections of 0.5 – 1.0 mm²)
1-968855-1 (for thicker power wires with a cross-section of 1.5 – 2.5 mm²)
Side signal pins (8 pieces along the edges)
Micro-contacts of 1.2 mm width of the TE MCON 1.2 series are used
1452668-1 (for standard thin wires with a cross-section of 0.25 – 0.35 mm²)
1452671-1 (for wires with a cross-section of 0.5 – 0.75 mm²)
=================================
Connector for plugging in the button:
Part number — 1718656-1 (4E0973704)
Pins (female)
7-1452665-1 — for the thinnest wires with a cross-section of 0.13 – 0.22 mm²
5-1452665-1 — standard and most popular pin for signal lines with a cross-section of 0.25 – 0.35 mm²
5-1452668-1 — for medium wires with a cross-section of 0.50 – 0.75 mm² (if the circuit is under a heavier load)
=================================
Connector for plugging in the power latch motor:
Part number — 7283-6443-40
Pins (female)
7116-4100-02 — for thin wire (cross-section approximately 0.3–0.5 mm²)
7116-4101-02 — for medium wire (cross-section approximately 0.5–1.0 mm²)
=================================
Connector for plugging in the latch:
Unfortunately, I was unable to find the part numbers for this connector and its pins.
You will need to add a few wires to this connector.
I took them along with the pins from a donor wiring harness.
=================================
If you got the module without connectors, there is another way to go — buy a wiring harness 32265039 from an XC60
(it has all the connectors except for Connector B (the right one), which you will still need to buy separately)
Wiring:
I used this wiring diagram - MC-10236766-9999.pdf
TRM module
Diagram sheets:
22 - CAN bus connection.
47 - power supply connection.
Pinout
Power connector A
From left to right from the wire side, tab on TOP.
1 — trailer power supply RD/BN 4mm, fuse 11 (route to the trunk outlet)
2 — constant positive 12 volts from the battery to the module RD/WH 4mm, fuse 18 (route to POT B1)
Signal connector B
From left to right from the wire side, tab on BOTTOM.
1 — empty
2 — CAN1_H VT/WH 0.35mm (route to POT B13)
3 — CAN1_L VT/GN 0.35mm (route to POT B1)
4 — empty
5 — empty
6 — Brake light 0.35mm (not needed for us)
7 — empty
==================================================================
POT Module
Sheet 130
Models:
V541 S90
L541 S90L
V431 S60
Pinout
Left connector A
Top row, from left to right from the wire side, tab on TOP.
1 — power latch motor "Closing" OG 0.75mm (goes to A1 of the power latch motor)
2 — sunshade motor positive VT/WH 0.5mm (goes to GN 1.5mm A1 of the sunshade motor, not needed for us)
3 — right strut motor positive BN 1.5mm (goes to RD 1.0mm C2 of the strut)
4 — right strut motor shield BK 0.35mm (goes to BK 0.35mm C10 of the strut)
5 — right strut motor negative GN 1.5mm (goes to BK 1mm C9 of the strut)
6 — empty
7 — 12V power from terminal 30 fuse 09 RD/WH 4mm (taken from A2 TRM power wire)
Bottom row, from left to right from the wire side, tab on TOP.
8 — power latch motor "Reverse" WH/GN 0.75mm (goes to A2 of the power latch motor)
9 — sunshade motor negative YE 0.5mm (goes to WH 1.5mm A6 of the sunshade motor, not needed for us)
10 — empty
11 — empty
12 — empty
13 — empty
14 — ground BK 4mm (taken from the ground point)
==================================================================
Right connector B
Top row, from left to right from the wire side, tab on TOP.
1 — CAN_L VT/GN 0.35mm (taken from B3 TRM signal wire)
2 — sunshade right Hall sensor 1 signal GY 0.35mm (goes to BU 0.5mm A3 of the sunshade motor, not needed for us)
3 — sunshade right Hall sensor 2 signal GY/VT 0.35mm (goes to YE 0.5mm A4 of the sunshade motor, not needed for us)
4 — right strut left Hall sensor 1 signal YE 0.35mm (goes to YE 0.35mm C6 of the strut motor)
5 — right strut left Hall sensor 2 signal VT 0.35mm (goes to GN 0.35mm C8 of the strut motor)
6 — empty
7 — empty
8 — trunk lock closed limit switch BN/YE 0.5mm (goes to A1 of the trunk lock)
9 — trunk lock secondary signal GN/YE 0.5mm (goes to A2 of the trunk lock)
10 — empty
11 — empty
12 — empty
Bottom row, from left to right from the wire side, tab on TOP.
13 — CAN_H VT/WH 0.35mm (taken from B2 TRM signal wire)
14 — empty
15 — empty
16 — empty
17 — right strut Hall sensors power BN/GY 0.35mm (goes to BN 0.35mm C1 of the strut)
18 — sunshade Hall sensors power RD/BN 0.35mm (goes to RD/BU 0.5mm A5 of the sunshade motor, not needed for us)
19 — right strut Hall sensors ground GY/OG 0.35mm (goes to BU 0.35mm C4 of the strut)
20 — empty
21 — empty
22 — sunshade Hall sensors ground GY/OG 0.35mm (goes to BN 0.5mm A2 of the sunshade motor, not needed for us)
23 — empty
24 — trunk lock primary signal GY/VT 0.35mm (goes to GN/VT 0.5mm A3 of the trunk lock)
==================================================================
Trunk lock connector
From left to right from the wire side, tab on TOP.
1 — closing signal BN/YE 0.5mm (take from B8 POT)
2 — secondary signal GN/YE 0.5mm (take from B9 POT)
3 — primary unlocking signal GY/VT 0.35mm (comes from CEM, splice in parallel to B24 POT)
4 — ground for the lid button backlight GY 0.5mm (switched by the limit switch in the lock, route to A2 of the lid button)
5 — lock motor ground BK/WH 0.75mm (already exists, comes from common ground)
6 — lock motor positive BK 0.5mm (already exists, comes from CEM)
==================================================================
Power strut connector (male, coming from POT)
From left to right from the wire side, top row, tab on the LEFT.
1 — Hall sensors power BN/GY 0.35mm (take from B17 POT)
4 — Hall sensors ground GY/OG 0.35mm (take from B19 POT)
6 — Hall sensor 1 signal YE 0.35mm (take from B4 POT)
8 — Hall sensor 2 signal VT 0.35mm (take from B5 POT)
From left to right from the wire side, middle row, tab on the LEFT.
2 — power strut motor positive BN 1.5mm (take from A3 POT)
9 — power strut motor negative GN 1.5mm (take from A5 POT)
From left to right from the wire side, bottom row, tab on the LEFT.
3 — empty
5 — empty
7 — empty
10 — shield BK 0.35mm (used for shielded struts) (take from A4 POT)
==================================================================
Trunk button connector
From left to right from the wire side, tab on TOP.
1 — CEM local ground GN/YE 0.35mm (goes to CEM at FL8)
2 — button backlight ground GY 0.5mm (goes to A4 of the lock, limit switch)
3 — button signal to CEM GY/YE 0.35mm (goes to CEM at FL6)
4 — button backlight positive BU 0.35mm (I took it from the trunk lighting, from the light on the center rear panel).
And this is where another unpleasant surprise was waiting for me…
Wires 1 and 3, which go from the CEM to the button on the trunk lid, are MISSING in Android-based S60 cars.
In Sensus-based cars, these wires were present if there was a car locking button in the trunk lid, but in Android cars, our friends at Volvo decided to remove these wires and the button entirely!
And that means - you will have to run 2 wires from the button in the trunk lid straight to the CEM through the entire cabin…
==================================================================
Just wanted to share my successful project: retrofitting an S90 power trunk lift into an S60 MY24!
What you will need to implement this project:
1. Purchase the necessary system components;
2. Install and connect them;
3. Activate the system in the configuration.
==================================================================
Project Components:
Control module: 31654859 or 31654192 or 32200068 or 31676619 or 32200220 or 31682760 or 32357499.
IMPORTANT — it must be specifically from an S90. Modules from other SPA platform models will not work, as they control two struts of a completely different length, and have different module pinouts and operating logic.
You can identify which exact module you have by the HW marking; it must be 31654193, 31676620, or 31682761.
The pins in the module connectors must look exactly like this!
This only works in combination with the module part numbers and the HW numbers on them.
The pins in the connectors on the V90 and V90CC are arranged the same way as on the S90.
However, a module from a V90/V90CC will most likely not work!
Power strut (1 pc): 31371787 or 31690206 (shielded) or 31690207 (unshielded)
Any of the above will work.
Ball stud for the power strut: 30640955
Round M8 x 20 nut (sleeve nut) or coupling nut.
M8 x 30 stud: cut the head off a bolt
The nut (sleeve nut) and stud are needed as a spacer to mount the power strut ball stud into the hole in the body.
There is no room for the power strut between the trunk lining and the wiring harness duct!
Therefore, it is IMPORTANT to install the power strut as close to the duct as possible, so that the trunk lining undergoes minimal deformation and bulges into the trunk as little as possible.
To achieve this, you need to cut off half of the thread on the ball stud (which is +/-10 mm).
In the end, you will get a fastening kit that looks like this.
It will be mount right here:
Power latch: 31484594 or 32149884 or 32149890.
(in fact, any power latch from the SPA platform will fit; I tried installing one from an XC60, and it fit perfectly in terms of both geometry and connection)
The button is chosen depending on the equipment package:
31427330 (with keyless entry and power tailgate)
31427329 (WITHOUT keyless entry, but with power tailgate)
Button bracket: 31426650
Nut retainer (clip nut) 2pcs: 1379804
Self-tapping screws 2pcs: 986116
Washers 2pcs: 986498
==================================================================
Connections:
Power Supply:
In the S90, power to the POT comes from fuse 9 (25 amps) in the trunk fuse box.
In the S60, it is not used, but you can run a line from there, or, to save yourself unnecessary work, you can take power from the TRM connector.
The TRM connector is located right in the right part of the trunk behind the lining.
This is exactly where the POT module itself and the power strut will be installed.
Two power wires come to the TRM connector: ACC (fuse 11, 40 amps) and VCC (fuse 18, 25 amps (for the control module) or 40 amps (for accessories)).
On my model year 2024 vehicle, these fuses were missing!
According to the fuse diagrams:
On 2017–2018 model year cars, these fuses were installed optionally.
On 2019–2022 model year cars, these fuses are present.
On 2023–present model year cars, these fuses were installed optionally.
So it is better to check whether they are present.
=================================
If connecting to the TRM connector, the power to the POT module must be taken from VCC (RD/WH) so that the module is constantly powered.
I decided to retrofit the car with a trunk power outlet 31346799 as well.
For the outlet, I will take the power from the same connector, but from ACC (RD/BN).
The ground point is nearby in the same area.
TRM power connector (it is already in the car, writing just for informational purposes) — Yazaki 7283-6458-40 (DJ70238-6.3-21)
Pins (female):
7116-4120-02 — for thin wires with a cross-section of 0.5 – 1.0 mm².
7116-4121-02 — for medium wires with a cross-section of 1.0 – 2.5 mm².
7116-4122-02 — for thick power wires with a cross-section of 3.0 – 4.0 mm².
Mating part (the one you need to buy) — Yazaki 7282-6458-40 (DJ70238-6.3-11)
Pins for the mating part (male):
7114-4120-02 — for thin wires with a cross-section of 0.5 – 1.0 mm².
7114-4121-02 — for medium wires with a cross-section of 1.0 – 2.5 mm².
7114-4122-02 — for thick power wires with a cross-section of 3.0 – 4.0 mm².
If you have a trailer hitch and a TRM module, you can make a splitter.
=================================
CAN bus:
The TRM signal connector (it is already in the car, writing just for informational purposes) is located next to the power one, and it is — IL-AG5-7S-S3C1 (DJ7071A-0.6-21).
Pins (female) — IL-AG5-C1-5000.
Mating part (the one you need to buy) — IL-AG5-7P-S3C1 (DJ7071A-0.6-11).
Pins (male) — IL-AG5-PC1-5000.
A reminder — to mitigate interference, the CAN bus wires must be run twisted together (as a twisted pair).
=================================
Connectors for plugging into the POT module:
Connector A (left on the module) — 7283-6447-40
This is a combined connector, so 2 types of pins are used.
Pins (female)
Outer power pins (2.8 mm width) — 4 pcs needed
7116-4110-02 — for wires with a cross-section of 0.3 – 0.5 mm²
7116-4111-02 — for medium wires with a cross-section of 0.75 – 1.25 mm²
7116-4112-02 — for thick power wires with a cross-section of 2.0 mm²
Central signal pins (1.5 mm width) — 10 pcs needed.
7116-4100-02 — for thin wires with a cross-section of 0.3 – 0.5 mm²
7116-4101-02 — for wires with a cross-section of 0.75 – 1.25 mm²
Connector B (right) — 1452839-5 (13837394)
Pins (female)
13933668 — for the thinnest signal wires with a cross-section of 0.22 – 0.35 mm²
13933669 — for wires with a cross-section of 0.50 – 0.75 mm²
or
1393366-1 (tin plating) — for thin wire (cross-section 0.22 – 0.35 mm² / 22-24 AWG)
1393366-3 — gold-plated alternative
1393367-1 (tin plating) — for standard wire (cross-section 0.50 – 0.75 mm² / 18-20 AWG)
1393367-3 — gold-plated alternative
=================================
Connector for plugging in the power strut:
This connector is also combined.
There are 2 power contacts in the center and 8 more signal contacts along the edges.
Part number — 1563125-1 (DJ7101-1.2-2.8-11) (7P0972725)
Pins (male)
Central power pins (2 pieces in the center)
Flat 2.8 mm width contacts of the TE MCP 2.8 series are used
1-968853-1 (for standard wire cross-sections of 0.5 – 1.0 mm²)
1-968855-1 (for thicker power wires with a cross-section of 1.5 – 2.5 mm²)
Side signal pins (8 pieces along the edges)
Micro-contacts of 1.2 mm width of the TE MCON 1.2 series are used
1452668-1 (for standard thin wires with a cross-section of 0.25 – 0.35 mm²)
1452671-1 (for wires with a cross-section of 0.5 – 0.75 mm²)
=================================
Connector for plugging in the button:
Part number — 1718656-1 (4E0973704)
Pins (female)
7-1452665-1 — for the thinnest wires with a cross-section of 0.13 – 0.22 mm²
5-1452665-1 — standard and most popular pin for signal lines with a cross-section of 0.25 – 0.35 mm²
5-1452668-1 — for medium wires with a cross-section of 0.50 – 0.75 mm² (if the circuit is under a heavier load)
=================================
Connector for plugging in the power latch motor:
Part number — 7283-6443-40
Pins (female)
7116-4100-02 — for thin wire (cross-section approximately 0.3–0.5 mm²)
7116-4101-02 — for medium wire (cross-section approximately 0.5–1.0 mm²)
=================================
Connector for plugging in the latch:
Unfortunately, I was unable to find the part numbers for this connector and its pins.
You will need to add a few wires to this connector.
I took them along with the pins from a donor wiring harness.
=================================
If you got the module without connectors, there is another way to go — buy a wiring harness 32265039 from an XC60
(it has all the connectors except for Connector B (the right one), which you will still need to buy separately)
Wiring:
I used this wiring diagram - MC-10236766-9999.pdf
TRM module
Diagram sheets:
22 - CAN bus connection.
47 - power supply connection.
Pinout
Power connector A
From left to right from the wire side, tab on TOP.
1 — trailer power supply RD/BN 4mm, fuse 11 (route to the trunk outlet)
2 — constant positive 12 volts from the battery to the module RD/WH 4mm, fuse 18 (route to POT B1)
Signal connector B
From left to right from the wire side, tab on BOTTOM.
1 — empty
2 — CAN1_H VT/WH 0.35mm (route to POT B13)
3 — CAN1_L VT/GN 0.35mm (route to POT B1)
4 — empty
5 — empty
6 — Brake light 0.35mm (not needed for us)
7 — empty
==================================================================
POT Module
Sheet 130
Models:
V541 S90
L541 S90L
V431 S60
Pinout
Left connector A
Top row, from left to right from the wire side, tab on TOP.
1 — power latch motor "Closing" OG 0.75mm (goes to A1 of the power latch motor)
2 — sunshade motor positive VT/WH 0.5mm (goes to GN 1.5mm A1 of the sunshade motor, not needed for us)
3 — right strut motor positive BN 1.5mm (goes to RD 1.0mm C2 of the strut)
4 — right strut motor shield BK 0.35mm (goes to BK 0.35mm C10 of the strut)
5 — right strut motor negative GN 1.5mm (goes to BK 1mm C9 of the strut)
6 — empty
7 — 12V power from terminal 30 fuse 09 RD/WH 4mm (taken from A2 TRM power wire)
Bottom row, from left to right from the wire side, tab on TOP.
8 — power latch motor "Reverse" WH/GN 0.75mm (goes to A2 of the power latch motor)
9 — sunshade motor negative YE 0.5mm (goes to WH 1.5mm A6 of the sunshade motor, not needed for us)
10 — empty
11 — empty
12 — empty
13 — empty
14 — ground BK 4mm (taken from the ground point)
==================================================================
Right connector B
Top row, from left to right from the wire side, tab on TOP.
1 — CAN_L VT/GN 0.35mm (taken from B3 TRM signal wire)
2 — sunshade right Hall sensor 1 signal GY 0.35mm (goes to BU 0.5mm A3 of the sunshade motor, not needed for us)
3 — sunshade right Hall sensor 2 signal GY/VT 0.35mm (goes to YE 0.5mm A4 of the sunshade motor, not needed for us)
4 — right strut left Hall sensor 1 signal YE 0.35mm (goes to YE 0.35mm C6 of the strut motor)
5 — right strut left Hall sensor 2 signal VT 0.35mm (goes to GN 0.35mm C8 of the strut motor)
6 — empty
7 — empty
8 — trunk lock closed limit switch BN/YE 0.5mm (goes to A1 of the trunk lock)
9 — trunk lock secondary signal GN/YE 0.5mm (goes to A2 of the trunk lock)
10 — empty
11 — empty
12 — empty
Bottom row, from left to right from the wire side, tab on TOP.
13 — CAN_H VT/WH 0.35mm (taken from B2 TRM signal wire)
14 — empty
15 — empty
16 — empty
17 — right strut Hall sensors power BN/GY 0.35mm (goes to BN 0.35mm C1 of the strut)
18 — sunshade Hall sensors power RD/BN 0.35mm (goes to RD/BU 0.5mm A5 of the sunshade motor, not needed for us)
19 — right strut Hall sensors ground GY/OG 0.35mm (goes to BU 0.35mm C4 of the strut)
20 — empty
21 — empty
22 — sunshade Hall sensors ground GY/OG 0.35mm (goes to BN 0.5mm A2 of the sunshade motor, not needed for us)
23 — empty
24 — trunk lock primary signal GY/VT 0.35mm (goes to GN/VT 0.5mm A3 of the trunk lock)
==================================================================
Trunk lock connector
From left to right from the wire side, tab on TOP.
1 — closing signal BN/YE 0.5mm (take from B8 POT)
2 — secondary signal GN/YE 0.5mm (take from B9 POT)
3 — primary unlocking signal GY/VT 0.35mm (comes from CEM, splice in parallel to B24 POT)
4 — ground for the lid button backlight GY 0.5mm (switched by the limit switch in the lock, route to A2 of the lid button)
5 — lock motor ground BK/WH 0.75mm (already exists, comes from common ground)
6 — lock motor positive BK 0.5mm (already exists, comes from CEM)
==================================================================
Power strut connector (male, coming from POT)
From left to right from the wire side, top row, tab on the LEFT.
1 — Hall sensors power BN/GY 0.35mm (take from B17 POT)
4 — Hall sensors ground GY/OG 0.35mm (take from B19 POT)
6 — Hall sensor 1 signal YE 0.35mm (take from B4 POT)
8 — Hall sensor 2 signal VT 0.35mm (take from B5 POT)
From left to right from the wire side, middle row, tab on the LEFT.
2 — power strut motor positive BN 1.5mm (take from A3 POT)
9 — power strut motor negative GN 1.5mm (take from A5 POT)
From left to right from the wire side, bottom row, tab on the LEFT.
3 — empty
5 — empty
7 — empty
10 — shield BK 0.35mm (used for shielded struts) (take from A4 POT)
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Trunk button connector
From left to right from the wire side, tab on TOP.
1 — CEM local ground GN/YE 0.35mm (goes to CEM at FL8)
2 — button backlight ground GY 0.5mm (goes to A4 of the lock, limit switch)
3 — button signal to CEM GY/YE 0.35mm (goes to CEM at FL6)
4 — button backlight positive BU 0.35mm (I took it from the trunk lighting, from the light on the center rear panel).
And this is where another unpleasant surprise was waiting for me…
Wires 1 and 3, which go from the CEM to the button on the trunk lid, are MISSING in Android-based S60 cars.
In Sensus-based cars, these wires were present if there was a car locking button in the trunk lid, but in Android cars, our friends at Volvo decided to remove these wires and the button entirely!
And that means - you will have to run 2 wires from the button in the trunk lid straight to the CEM through the entire cabin…
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