B1892–POWER LIFTGATE CONTROL CIRCUIT 2 HIGH
For a complete wiring diagram Refer to Section 8W
- When Monitored:
Whenever the Power Liftgate Module is performing a power opening or closing operation.
- Set Condition:
When the Power Liftgate Module senses voltage above 9.5 volts on the (Q89) Liftgate Close Driver circuit prior to starting a power open or close cycle, this code will set.
| Possible Causes |
| (Q89) LIFTGATE CLOSE DRIVER CIRCUIT SHORT TO VOLTAGE |
| (Q88) LIFTGATE OPEN DRIVER CIRCUIT SHORT TO VOLTAGE |
| (Q88) LIFTGATE OPEN DRIVER CIRCUIT SHORT TO (Q89) LIFTGATE CLOSE DRIVER CIRCUIT |
| POWER LIFTGATE DRIVE UNIT |
| POWER LIFTGATE MODULE |
Diagnostic Test
1.DTC PRESENTDoes the scan tool display B1892–POWER LIFTGATE CONTROL CIRCUIT 2 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. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).
2.(Q89) LIFTGATE CLOSE DRIVER CIRCUIT SHORT TO VOLTAGE
Is there any voltage present?
Yes
- Repair the (Q89) Liftgate Close Driver circuit for a short to voltage.
- Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).
No
- Go To 3
3.(Q88) LIFTGATE OPEN DRIVER CIRCUIT SHORT TO VOLTAGE
Is there any voltage present?
Yes
- Repair the (Q88) Liftgate Open Driver circuit for a short to voltage.
- Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).
No
- Go To 4
4.(Q88) LIFTGATE OPEN DRIVER CIRCUIT SHORT TO (Q89) LIFTGATE CLOSE DRIVER CIRCUIT
Is the resistance below 10000.0 ohms?
No
- Replace the Power Liftgate Module in accordance with service information.
- Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).
Yes
- Repair the (Q88) Liftgate Open Driver circuit for a short to the (Q89) Liftgate Close Driver circuit. If the (Q88) Liftgate Open Driver circuit and the (Q89) Liftgate Close Driver circuit are OK, replace the Power Liftgate Drive Unit in accordance with the service information.
- Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).