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B197D







B197D-POWER LIFTGATE LATCH CINCH - PAWL SWITCH PERFORMANCE

For a complete wiring diagram Consult Diagrams/Electrical

- When Monitored:
Whenever the power liftgate is performing a cinching operation.

- Set Condition:
The pawl switch did not transition from closed to open during the cinching operation.





Diagnostic Test

1. DTC PRESENT

NOTE: This DTC will only set after the cinching operation after the four second time out. This may make it difficult to reproduce.

With the scan tool, record and erase DTC's.
Turn the ignition off, wait 10 seconds, then turn the ignition on.
Operate the power liftgate several times if possible.
With the scan tool, read ACTIVE DTCs.
Does the scan tool display B197D-POWER LIFTGATE LATCH CINCH - PAWL SWITCH PERFORMANCE?

Yes

- Go To 2

No

- Using the wiring diagram/schematic as a guide, inspect the wiring and connectors for an intermittent condition. Operate the door several times and check for any binding or other obstructions.
- PERFORM BODY VERIFICATION TEST - VER 1. Body Verification Test

2. BINDING LIFTGATE
Examine the liftgate for proper fit and alignment, loose/hard or torn seals, misaligned latch striker or anything that would cause an obstruction to proper operation.
Manually operate the liftgate of a known good vehicle and notice the effort needed to open and close. Pay particular attention to the cinch and latch operations.
Compare the effort needed on the disabled liftgate.
Does it take more effort to operate the liftgate than it should?

Yes

- Repair accordingly.
- PERFORM BODY VERIFICATION TEST - VER 1. Body Verification Test

No

- Go To3

3. (Q901) LOGIC GROUND WIRE OPEN




Turn the ignition off.
Disconnect the Power Liftgate C2 connector.
Disconnect the Liftgate Cinch/Release Motor connector.
Measure the resistance of the (Q901) Logic Ground circuit between the PLG C2 connector and the Liftgate Cinch/Release Motor connector.
Wiggle the harness while observing the ohmmeter.
Is the resistance below 2.0 ohms?

Yes

- Go To 4

No

- Repair the (Q901) Logic Ground wire for an open.
- PERFORM BODY VERIFICATION TEST - VER 1. Body Verification Test

4. (Q60) LIFTGATE PAWL SWITCH SENSE WIRE OPEN




Measure the resistance of the (Q60) Liftgate Pawl Switch Sense wire between the PLG C2 connector and the Liftgate Cinch/Release Motor connector.
Wiggle the harness while observing the ohmmeter.
Is the resistance below 2.0 ohms?

Yes

- Go To 5

No

- Repair the (Q60) Liftgate Pawl Switch Sense wire for an open.
- PERFORM BODY VERIFICATION TEST - VER 1. Body Verification Test

5. (Q60) LIFTGATE PAWL SWITCH SENSE WIRE SHORT TO GROUND




Reconnect all Power Liftgate Module connectors before proceeding.
Measure the resistance between the (Q901) Logic Ground and the (Q60) Liftgate Pawl Switch Sense circuit in the Cinch/Release Motor connector.
Wiggle the harness while observing the ohmmeter.
Is the resistance below 1000.0 ohms?

Yes

- Repair the (Q60) Liftgate Pawl Switch Sense wire for a short to ground.
- PERFORM BODY VERIFICATION TEST - VER 1. Body Verification Test

No

- Go To 6

6. (Q60) LIFTGATE PAWL SWITCH SENSE SHORT TO VOLTAGE




Disconnect the Liftgate Cinch/Release Motor harness connector.
Turn the ignition on.
Measure the voltage between the (Q901) Logic Ground circuit and the (Q60) Liftgate Pawl Switch Sense circuit in the Liftgate Cinch/Release Motor connector.
Wiggle the harness while observing the voltmeter.
Is there any voltage present?

No

- Go To 7

Yes

- Repair the (Q60) Liftgate Pawl Switch Sense circuit for a short to voltage.
- PERFORM BODY VERIFICATION TEST - VER 1. Body Verification Test

7. (Q83) LIFTGATE LATCH CLUTCH DRIVER CIRCUIT OPEN




Turn the ignition off.
Measure the resistance of the (Q83) Liftgate Latch Clutch Driver circuit between the PLG Module C2 harness connector and the Liftgate Cinch/Release Motor harness connector.
Is the resistance below 2.0 ohms?

Yes

- Go To 8

No

- Repair the (Q83) Liftgate Latch Clutch Driver circuit for an open.
- PERFORM BODY VERIFICATION TEST - VER 1. Body Verification Test

8. (Z245) GROUND CIRCUIT OPEN




Turn the ignition off.
Measure the resistance between ground and the (Z245) Ground circuit.
Is the resistance below 5.0 ohms?

No

- Repair the (Z245) Ground circuit for an open.
- PERFORM BODY VERIFICATION TEST - VER 1. Body Verification Test

Yes

- Go To 9

9. (Q84) LIFTGATE LATCH CINCH DRIVER CIRCUIT OPEN




Turn the ignition off.
Measure the resistance of the (Q84) Liftgate Latch Cinch Driver circuit between the Power Liftgate Module C2 connector and the Liftgate Cinch/Release Motor connector.
Wiggle the harness and check for an intermittent open condition.
Is the resistance below 5.0 ohms?

Yes

- Go To 10

No

- Repair the (Q84) Liftgate Latch Cinch Driver wire for an open.
- PERFORM BODY VERIFICATION TEST - VER 1. Body Verification Test

10. (Q85) LIFTGATE LATCH RELEASE DRIVER OPEN




Measure the resistance of the (Q85) Liftgate Latch Release Driver circuit between the Power Liftgate Module C2 harness connector and the Liftgate Cinch/Release Motor harness connector.
Wiggle the harness and check for an intermittent open condition.
Is the resistance below 5.0 ohms?

Yes

- Go To 11

No

- Repair the (Q85) Liftgate Latch Release Driver circuit for an open.
- PERFORM BODY VERIFICATION TEST - VER 1. Body Verification Test

11. CHECK THE POWER LIFTGATE LATCH CINCH DRIVER




Turn the ignition off.
Reconnect the Power Liftgate Module C2 harness connector.
Turn the ignition on.
While using the scan tool to actuate the Power Liftgate Latch Cinch motor, measure the voltage between the (Q84) Liftgate Latch Cinch Driver circuit and ground.
Is the voltage above 12 volts?

No

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

Yes

- Go To 12

12. CHECK THE POWER LIFTGATE LATCH RELEASE DRIVER




Turn the ignition on
While using the scan tool to actuate the Power Liftgate Latch Release Motor, measure the voltage between the (Q85) Liftgate Latch Release Driver circuit and ground.
Is the voltage above 12 volts?

No

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

Yes

- Replace the Liftgate Cinch/Release Motor Assembly.
- PERFORM BODY VERIFICATION TEST - VER 1. Body Verification Test

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