Circuit/System Testing

WARNING: This page is about a different car, the 2015 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.

Ignition OFF, disconnect the X5 harness connector at the K40D Seat Memory Control Module, ignition ON.
Test for less than 1 V between the appropriate control circuit terminal listed below and ground:
- Terminal 4 - P45RR Seat Haptic Signal Motor - Driver Right Rear
- Terminal 5 - P45LR Seat Haptic Signal Motor - Driver Left Rear
- If 1 V or greater
  Repair the short to voltage on the circuit.
- If less than 1 V
Ignition OFF and all vehicle systems OFF.
Install a 3 A fused jumper wire between the appropriate control circuit terminal listed below and B+.
- Terminal 4 - P45RR Seat Haptic Movement Motor - Driver Right Rear
- Terminal 5 - P45LR Seat Haptic Movement Motor - Driver Left Rear
Verify the appropriate P45 Seat Haptic Movement Motor - Driver turns on and off.
- If the P45 Seat Haptic Movement Motor - Driver does not turn on and off
1. Verify the circuit ground connection is clean and secure.
  - If the ground connector is not clean or secure, repair as necessary.
  - If the circuit ground connection is clean and secure
2. Replace the appropriate P45 Seat Haptic Movement Motor - Driver.
- If the P45 Seat Haptic Movement Motor - Driver turn on and off
Ignition OFF, connect the harness connector at the K40D Seat Memory Control Module - Driver, ignition ON.
Verify the P45LR Haptic Signal Motor - Driver Left Rear turns on and off when commanding the Driver Seat Cushion Left Rear Haptic Movement On and Off with a scan tool.
- If the motor does not function
  Replace the K40D Seat Memory Control Module - Driver.
- If the motor functions
Verify the P45RR Haptic Signal Motor - Driver Right Rear turns on and off when commanding the Driver Seat Cushion Right Rear Haptic Movement On and Off with a scan tool.
- If the motor does not function
  Replace the K40D Seat Memory Control Module - Driver.
- If the motor functions
All OK.