Diagnostic Instructions
| • | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
| • | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
| • | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
DTC Descriptors
DTC B1534 02: Left Rear Door Handle Switch CircuitDTC B1535 02: Right Rear Door Handle Switch Circuit
Diagnostic Fault Information
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
Right Rear Door Handle Switch Signal | B1535 02 | 1 | 1 | -- |
Left Rear Door Handle Switch Signal | B1534 02 | 1 | 1 | -- |
Right Rear Door Handle Switch Ground | -- | 1 | -- | -- |
Left Rear Door Handle Switch Ground | -- | 1 | -- | -- |
1. Power Door Unlock System Malfunction | ||||
Circuit/System Description
The left and right rear door handle switch signal circuit provides inputs to the remote control door lock receiver (RCDLR) when the appropriate rear exterior door handle switch is activated. This input allows the RCDLR to detect a door open request. When the left or right rear door handle is activated, the switch closes and the voltage signal from the RCDLR is pulled to ground, the RCDLR will then send a command to the appropriate door module to unlock the door.
Conditions for Running the DTC
The system voltage is 9-16 volts.
Conditions for Setting the DTC
The RCDLR detects a short to ground in the left rear or right rear door handle signal circuit.
Action Taken When the DTC Sets
The affected door will not unlock when using the exterior door handle.
Conditions for Clearing the DTC
| • | The DTC will be current for as long as the fault is present. |
| • | When the fault is no longer present, the DTC will be a history DTC. |
| • | A history DTC will clear after 50 ignition cycles. |
Reference Information
Schematic Reference
Door Lock/Indicator Schematics
Connector End View Reference
Description and Operation
Power Door Latch Description and Operation
Electrical Information Reference
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
With the doors LOCKED and the keyless access transmitter within 3 feet of the door, open the left rear and right rear doors by using the exterior door handles, the left and right rear doors should UNLOCK and open.
Circuit/System Testing
- Ignition OFF, disconnect the harness connector at the appropriate rear door handle switch.
- Ignition ON, test for greater than 10 volts between the signal circuit terminal D and ground.
- If all circuits test normal, test or replace the rear door handle switch.
| ⇒ | If less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the RCDLR. |
Component Testing
- Ignition OFF, disconnect the harness connector at the appropriate rear door handle switch.
- Test for infinite resistance between the signal terminal D and the ground terminal C with the switch in the open position.
- Test for less than 2 ohms between the signal terminal D and the ground terminal C with the switch in the closed position.
- If greater than the specified range, replace the rear door handle switch.
| ⇒ | If not the specified value, replace the rear door handle switch |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
| • | Control Module References for RCDLR replacement, setup, and programming |
