B1952

B1952-POWER LIFTGATE DRIVE MOTOR - INCORRECT DIRECTION

B1952 - Power Liftgate Drive Motor - Incorrect Direction:

WHEN MONITORED
Whenever the Power Liftgate Motor is in operation.

SET CONDITION
When the Power Liftgate Module senses the direction of the drive motor is in opposition to the direction it is trying to drive the liftgate, this code will set.

POSSIBLE CAUSES
- (Q88) Liftgate open driver circuit and the (Q89) liftgate close driver circuits are crossed
- (Q204) Position sensor signal 1 and the (Q203) position sensor signal 2 circuits are crossed
- Power liftgate drive unit

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.
If possible, operate the liftgate several times.
With the scan tool, read DTCs.

Q: Does the scan tool display B1952-POWER LIFTGATE DRIVE MOTOR - INCORRECT DIRECTION?

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. (Q88) LIFTGATE OPEN DRIVER CIRCUIT AND THE (Q89) LIFTGATE CLOSE DRIVER CIRCUITS ARE CROSSED




Turn the ignition off.
Disconnect the Power Liftgate Module C1 connector.
Disconnect the Power Liftgate Drive Unit connector.
Trace the (Q88) Liftgate Open Driver circuit and the (Q89) Liftgate Close Driver circuits between the PLG C1 connector and the Drive Unit connector.

Q: Are the circuits crossed at either connector?

NO: Go To 3
YES: Correct the wiring as necessary. Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

3. (Q204) POSITION SENSOR SIGNAL 1 AND THE (Q203) POSITION SENSOR SIGNAL 2 CIRCUITS ARE CROSSED




Trace the (Q204) Position sensor signal 1 circuit and the (Q203) Position Sensor Signal 2 circuits for possibly being crossed between the PLG C1 connector and the Drive Unit connector.

Q: Are the circuits crossed at either connector?

NO: Replace the Drive Unit. Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
YES: Correct the wiring as necessary. Perform BODY VERIFICATION TEST - VER 1. Body Verification Test