Pinpoint Test R: The RHVAC (Rear Heating, Ventilation And Air Conditioning) Illumination Is Inoperative Or Does Not Dim
- Refer to AUDIO SYSTEM/NAVIGATION - SYNC
for schematic and connector information.
Normal Operation and Fault Conditions
REFER to: Instrument Panel and Interior Switches Illumination - System Operation and Component Description .
Possible Sources
- Communication network concern
- Wiring, terminals or connectors
- RHVAC control module
- R1 PERFORM A NETWORK TEST
- Ignition ON.
- Using a diagnostic scan tool, perform a network test.
Does the RHVAC control module pass the network test?
Yes GO to R2 No DIAGNOSE a concern with the network. REFER to: Communications Network . - R2 CHECK FOR CORRECT RHVAC (REAR HEATING, VENTILATION AND AIR CONDITIONING) OPERATION
- Disconnect and inspect all RHVAC control module and related in-line connectors.
- Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary
- Reconnect the RHVAC control module and related in-line connectors and all previously disconnected illumination system connectors. Make sure all connectors seat and latch correctly.
- Operate the system to determine if the concern is still present.
Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new RHVAC control module. REFER to: Rear Heating, Ventilation and Air Conditioning (RHVAC) Control Module . No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.