• | 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 |
---|---|---|---|---|
RAP Relay Coil Supply Voltage | B1475 00 | 1 | 1 | -- |
1. Retained Accessory Power (RAP) Malfunction |
The body control module (BCM) controls the RAP relay through the rap relay coil supply voltage circuit by applying voltage to the coil side of the relay. The RAP relay is energized when any of the following conditions are true:
• | Ignition switch is in ACC or ON. |
• | The vehicle was remote started. |
• | The vehicle is in RAP mode. |
• | The system voltage is between 9-16 volts. |
• | The DTC can only set when the output is actively being requested by the module. |
The DTC will set only when the module requests the output and there is a short to ground in the rap relay coil supply voltage circuit.
The module output driver will be shut down and not supply voltage to the circuit.
• | The current DTC will clear when the module request for the output is removed or the malfunction is no longer present. |
• | A history DTC clears when the module ignition cycle counter reaches the reset threshold of 50, without a repeat of the malfunction. |
Data Communication Connector End Views
⇒ | If the test lamp is always OFF, test the relay coil control circuit for a short to ground. If the circuit tests normal, replace the BCM. |
⇒ | If the test lamp is always ON, refer to Retained Accessory Power (RAP) Malfunction . |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for BCM replacement, setup, and programming