• | 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 |
---|---|---|---|---|
BCM Supply Voltage | B2615 00 | B2615 00 | -- | -- |
Courtesy Lamp Control | B2615 00 | 1 | 1 | -- |
1. Courtesy Lamps Malfunction |
Battery voltage for the courtesy lamps is supplied at all times, from the BCM 3 fuse located in the underhood fuse block, to the body control module (BCM). When the BCM receives a signal to command the courtesy lamps ON, it applies voltage through the courtesy lamps supply voltage circuits to the courtesy lamps listed below.
• | The left and right I/P courtesy lamps |
• | Dome lamp |
• | Ignition ON. |
• | Courtesy lamps ON. |
The BCM detects a short to ground on the courtesy lamp supply voltage circuit.
The BCM will deactivate the courtesy lamps.
• | The condition responsible for setting the DTC no longer exists. |
• | A history DTC will clear once 100 consecutive malfunction-free ignition cycles have occurred. |
Interior Lights Dimming Schematics
Interior Lighting Systems Description and Operation
Control Module References for scan tool information
Ignition ON, command the Courtesy Lamps ON and OFF with the scan tool. The interior courtesy lamps should turn ON and OFF when changing between commanded states.
⇒ | If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance. If the circuit tests normal, and the B+ circuit fuse is open, test the control circuit terminal 5 X2 for a short to ground. |
⇒ | If the DTC resets, test the control circuit for a short to ground. |
⇒ | If the DTC resets, replace the component responsible for setting the DTC. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
• | Control Module References for BCM replacement, setup, and programming |
• | 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 |
---|---|---|---|---|
BCM Battery Supply | B2615 00 | B2615 00 | -- | -- |
Courtesy Lamp Control | B2615 00 | 1 | 1 | -- |
1. Courtesy Lamps Malfunction |
Battery voltage for the courtesy lamps is supplied at all times, from the BCM 3 Fuse located in the underhood fuse block, to the body control module (BCM). When the BCM receives a signal to command the courtesy lamps ON, it applies voltage through the courtesy lamps relay control circuit in order to energize the relay. With the relay energized, battery voltage is applied through switch side of the relay and the courtesy lamp supply voltage circuits to the courtesy lamps listed below.
• | Front dome lamp |
• | Rear dome lamp |
• | Ignition ON. |
• | Courtesy lamps ON. |
The BCM detects a short to ground on the courtesy lamp PCB relay control circuit.
The BCM will deactivate the courtesy lamps.
• | The condition responsible for setting the DTC no longer exists. |
• | A history DTC will clear once 100 consecutive malfunction-free ignition cycles have occurred. |
Interior Lights Dimming Schematics
Interior Lighting Systems Description and Operation
Control Module References for scan tool information
Ignition ON, command the Courtesy Lamps ON and OFF with the scan tool. The interior courtesy lamps should turn ON and OFF when changing between commanded states.
⇒ | If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance. If the circuit tests normal, and the B+ circuit fuse is open, test the control circuit terminal 5 and the right front turn signal for a short to ground. If all circuits and component test normal, replace the BCM. |
⇒ | If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the BCM. |
⇒ | If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
• | Control Module References for BCM replacement, setup, and programming |