B197E–POWER LIFTGATE LATCH RELEASE- PAWL SWITCH PERFORMANCE

For a complete wiring diagram Refer to Section 8W

When Monitored:
Whenever the power liftgate is performing a opening operation.
Set Condition:
The release operation was not completed due to the non-transition of the pawl switch during the power release operation. The ratchet switch was detected as grounded but the pawl remained open This code is set during the power releasing operation from a fully closed liftgate.

Possible Causes

BINDING LIFTGATE

(Q901) LOGIC GROUND CIRCUIT OPEN

(Q60) LIFTGATE PAWL SWITCH SENSE CIRCUIT OPEN

POWER LIFTGATE LATCH

POWER LIFTGATE MODULE

1.DTC PRESENT

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

Does the scan tool display B197E–POWER LIFTGATE LATCH RELEASE - PAWL SWITCH PERFORMANCE?

Yes

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. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).

2.BINDING LIFTGATE

Does it take more effort to operate the liftgate than it should?

Yes

Refer to Service information for the related symptom(s).
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).

3.CHECK THE (Q901) LOGIC GROUND CIRCUIT FOR AN OPEN

Is the resistance below 2.0 ohms?

Yes

Repair the (Q901) Logic Ground circuit for an open.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).

4.CHECK THE (Q60) LIFTGATE PAWL SWITCH SENSE CIRCUIT FOR AN OPEN

Is the resistance below 2.0 ohms?

Yes

Repair the (Q60) Liftgate Pawl Switch Sense circuit for an open.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).

5.(Q60) LIFTGATE PAWL SWITCH SENSE CIRCUIT SHORT TO VOLTAGE

Is there any voltage present?

No

Yes

Repair the (Q60) Liftgate Pawl Switch Sense circuit for a short to voltage.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).

6.(G78) LIFTGATE AJAR SWITCH SENSE CIRCUIT OPEN

Is the resistance below 2.0 ohms?

Yes

Repair the (G78) Liftgate Ajar Switch Sense circuit for an open.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).

7.POWER LIFTGATE MODULE

Did the scan tool show the switch state changing correctly every time?

Yes

Replace the Power Liftgate Latch in accordance with the service information.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).

Check the Power Liftgate Module and Power Liftgate Latch harness and connectors for damage, and repair as necessary. If the Power Liftgate Module and Power Liftgate Latch harness and connectors are OK, replace the Power Liftgate Module in accordance with the service information.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).