• | 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. |
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
---|---|---|---|---|
Passenger Door Unlock Relay Control | B3130 00 | 1 | 1 | -- |
1. Power Door Locks Inoperative - Passenger Door |
When the passenger door lock switch is place in to the UNLOCK position, ground is applied through the switch to the body control module (BCM). The BCM then applies ground through the passenger door unlock relay control circuit to the coil side of the passenger unlock relay in the body electrical center (BEC). The relay then engages and applies voltage to all of the passenger door lock assemblies.
The ignition is ON.
The BCM receives a voltage signal on the passenger door unlock relay control circuit.
The BCM cease attempt to unlock the doors.
The BCM clears this code from current when the fault is removed from the system.
Door Lock/Indicator Schematics
Vehicle Access Connector End Views
Ignition ON, place the driver door lock switch to the UNLOCK position. The driver door should unlock.
⇒ | If the DTC does not reset, replace the BEC. |
⇒ | If all circuits/connections test normal, replace the BCM. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
• | Control Module References for BCM replacement, setup, and programming |
• | Instrument Panel Electrical Center or Junction Block Replacement - Right Side |