Circuit/System Testing

Ignition/Vehicle OFF, disconnect the X2 harness connector at the K39 Liftgate Control Module.
Test for less than 1 V between the control circuit terminals listed below and ground:
- Control circuit terminal 1 X2
- Control circuit terminal 2 X2
- If 1 V or greater
1. Ignition/Vehicle OFF, disconnect the harness connector at the A23C Liftgate Latch Assembly. Ignition ON/Vehicle in Service Mode.
2. Test for less than 1 V between the control circuit and ground.
  - If 1 V or greater, repair the short to voltage on the circuit.
- If less than 1 V
Test for infinite resistance between the control circuit terminals listed below and ground:
- Control circuit terminal 1 X2
- Control circuit terminal 2 X2
- If less than infinite resistance
1. Ignition OFF, disconnect the harness connector at the A23C Liftgate Latch Assembly.
2. Test for infinite resistance between the control circuit and ground.
  - If less than infinite resistance, repair the short to ground on the circuit.
  - If infinite resistance, replace the A23C Liftgate Latch Assembly.
- If infinite resistance
Test for less than 10 Ω between the control circuit terminal 1 and the control circuit terminal 2.
- If 10 Ω or greater
1. Ignition/Vehicle OFF, disconnect the harness connector at the A23C Liftgate Latch Assembly.
2. Test for less than 2 Ω between the K39 Liftgate Control Module control circuit terminal 1 and the A23C Liftgate Latch Assembly control circuit terminal 4.
  - If 2 Ω or greater, repair the open/high resistance on the circuit.
3. Test for less than 2 Ω between the K39 Liftgate Control Module control circuit terminal 2 and the A23C Liftgate Latch Assembly control circuit terminal 1.
  - If 2 Ω or greater, repair the open/high resistance on the circuit.
  - If less than 2 Ω, replace the A23C Liftgate Latch Assembly.
- If less than 10 Ω
Replace the K39 Liftgate Control Module.