B1961

B1961-POWER LIFTGATE CHIME CONTROL CIRCUIT HIGH





For a complete wiring diagram Consult Diagrams/Electrical

- When Monitored:
Whenever the Power Liftgate Module is awake.

- Set Condition:
The power liftgate module has detected the chime circuit voltage is over four volts during operation or over 1.5 volts when not operating.





Diagnostic Test

1. DTC PRESENT
With the scan tool, record DTC's.
Erase DTC's
Turn the ignition off, wait 10 seconds, then turn the ignition on.
Operate the liftgate several times.
With the scan tool, read DTCs.
Does the scan tool display B1961-POWER LIFTGATE CHIME CONTROL CIRCUIT HIGH?

Yes

- Go To 2

No

- Using the wiring diagram/schematic as a guide, inspect the wiring and connectors for an intermittent condition.
- PERFORM BODY VERIFICATION TEST - VER 1. Body Verification Test

2. (Q94) LIFTGATE CHIME DRIVER CIRCUIT SHORT TO VOLTAGE




Turn the ignition off.
Disconnect the Power Liftgate Module C2 connector.
Turn the ignition on.
Measure the voltage between ground and the (Q94) Liftgate Chime Driver circuit.
Is there any voltage present?

No

- Go To 3

Yes

- Repair the (Q94) Liftgate Chime Driver circuit for a short to voltage.
- PERFORM BODY VERIFICATION TEST - VER 1. Body Verification Test

3. (Q94) LIFTGATE CHIME DRIVER CIRCUIT OPEN




Turn the ignition off.
Remove the liftgate trim panel.
Disconnect the License Lamp connector.
Measure the resistance of the (Q94) Liftgate Chime Driver circuit between the PLG C2 connector and the License Lamp connector.
Is the resistance below 2.0 ohms?

Yes

- Go To 4

No

- Repair the (Q94) Liftgate Chime Driver circuit for an open.
- PERFORM BODY VERIFICATION TEST - VER 1. Body Verification Test

4. (Z294) GROUND CIRCUIT OPEN




Turn all lights off.
Measure the resistance between ground and the (Z294) Ground circuit in the License Lamp connector.
Is the resistance below 5.0 ohms?

Yes

- Go To 5

No

- Repair the (Z294) Ground circuit for an open.
- PERFORM BODY VERIFICATION TEST - VER 1. Body Verification Test

5. LIFTGATE CHIME




Reconnect the license lamp connector.
Measure the resistance between ground and the (Q94) Liftgate Chime Driver circuit in the PLG C2 connector.
Is the resistance approximately 30.0 ohms?

No

- Replace the License Lamp Assembly.
- PERFORM BODY VERIFICATION TEST - VER 1. Body Verification Test

Yes

- Replace the Power Liftgate Module.
- PERFORM BODY VERIFICATION TEST - VER 1. Body Verification Test