• | 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 |
---|---|---|---|---|
Dome/Reading Lamp Control | B2615 00 | B2615 00 | B2615 00 | -- |
Dome/Reading Lamp Supply Voltage | 1 | 1 | -- | -- |
Dome Lamp Switch Signal | 2 | 2 | 2 | -- |
Exterior Lamps Illumination Supply Voltage | 3 | 3 | 3 | -- |
I/P Dimmer Switch Ground | -- | 2 | -- | -- |
LH Vanity Mirror Courtesy Lamp Ground | -- | 4 | -- | -- |
Overhead Console Courtesy/Reading Lamp Ground | -- | 4 | -- | -- |
Rear Dome Lamp Ground | -- | 1 | -- | -- |
RH Vanity Mirror Courtesy Lamp Ground | -- | 4 | -- | -- |
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The courtesy lamps include the reading lamps, cargo lamp, and dome lamps. The cargo lamp and dome lamps may be manually turned ON or OFF by placing the interior lamp switch in the ON or OFF position. When the driver places the dome lamp defeat switch in the OFF position, these courtesy lamps will be disabled. If a door is opened, the courtesy lamps illuminate. After all the doors have been closed, the courtesy lamps will remain illuminated approximately 15 seconds after the last door closes. The courtesy lamps will also turn ON prior to any door being opened and will remain illuminated approximately 40 seconds when the driver removes the ignition key. The body control module (BCM) will immediately turn OFF the courtesy lamps if a door lock command is received with all of the doors closed, or if the ignition switch is turned to either the ON or RUN position.
Interior Lighting Systems Description and Operation
Control Module References for scan tool information
⇒ | If the scan tool parameter does not display the correct state in relation to the actual switch position, refer to the Courtesy Lamp Switch Malfunction. |
⇒ | If the scan tool parameter does not display the correct state in relation to the actual switch position, refer to the Courtesy Lamp Switch Malfunction. |
⇒ | If all interior lamps do not illuminate, refer to Door Ajar Indicator Malfunction |
⇒ | If the reading lamps do not turn ON and OFF, refer to Reading Lamps Malfunction. |
⇒ | If the vanity mirrors do not turn ON and OFF, refer to Vanity Mirror Malfunction. |
⇒ | If greater than the specified range, test the ground circuit for an open/high resistance. |
⇒ | If not the specified value, test the signal circuit termina J for a short to ground. If the circuit tests normal, replace the BCM. |
⇒ | If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM. |
⇒ | If not the specified value, test the signal circuit terminal M for a short to ground. If the circuit tests normal, replace the BCM. |
⇒ | If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM. |
⇒ | If greater than the specified range, test the ground circuit for an open/high resistance. |
⇒ | 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. |
⇒ | If greater than the specified range, test the ground circuit for an open/high resistance. |
⇒ | If the test lamp does not illuminate, test the inadvertent power supply circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM. |
⇒ | If the test lamp is always ON, replace the inoperative courtesy/reading lamp center. |
⇒ | If the test lamp is always OFF, replace the inoperative courtesy/reading lamp center. |
⇒ | If greater than the specified range, test the ground circuit for an open/high resistance. |
⇒ | If the test lamp does not illuminate, test the inadvertent power supply circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM. |
⇒ | If the test lamp is always ON or OFF, replace the inoperative vanity mirror lamp. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
• | Control Module References for BCM or door module replacement, setup, and programming |