Pinpoint Test A: U011D:00
- Refer to MODULE COMMUNICATION NETWORK
for schematic and connector information.
Normal Operation and Fault Conditions
Refer to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description .
DTC Fault Trigger Conditions
DTC Description Fault Trigger Condition SIMA U011D:00 Lost Communication With All Wheel Drive Control Module: No Sub Type Information A continuous monitoring DTC that sets in the SIMA if the AWD driveline control module did not respond to SIMA requests. Possible Sources
- FD-CAN concern
- Battery voltage concern
- AWD driveline control module
- A1 CHECK THE COMMUNICATION NETWORK
- Connect the diagnostic tool.
- Ignition ON.
- Using a diagnostic scan tool, perform a network test.
Does the AWD module pass the network test?
Yes GO to A2 No Refer to: Controller Area Network (CAN) Module Communications Network . - A2 RECHECK THE SIMA (SWITCH INPUT MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)
- Using a diagnostic scan tool, clear the DTCs.
- Wait 10 seconds.
- Using a diagnostic scan tool, check for SIMA DTCs.
Is DTC U011D:00 retrieved again?
Yes GO to A3 No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent voltage condition. - A3 RETRIEVE THE AWD (ALL-WHEEL DRIVE) MODULE DTCS
- Using a diagnostic scan tool, perform the ABS module self-test.
Are any AWD module DTCs present?
Yes Refer to: Four-Wheel Drive Systems - 4x4 with Part Time Engagement, . Refer to: Four-Wheel Drive Systems - Advanced 4x4 with 4A Mode, . No GO to A4 - A4 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U011D:00 SET IN OTHER MODULES
- Using a diagnostic scan tool, clear the DTCs.
- Ignition OFF.
- Wait 10 seconds.
- Ignition ON.
- Using a diagnostic scan tool, retrieve all DTCs.
Is DTC U011D:00 set in other modules?
Yes GO to A5 No GO to A6 - A5 CHECK FOR CORRECT AWD (ALL-WHEEL DRIVE) MODULE OPERATION
- Ignition OFF.
- Disconnect and inspect the AWD connector.
- 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 AWD module connector. Make sure it seats and latches correctly.
- Operate the system and 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 AWD module. Refer to: All-Wheel Drive (AWD) Module - 4x4 with Part Time Engagement, . Refer to: All-Wheel Drive (AWD) Module - Advanced 4x4 with 4A Mode, . 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. - A6 CHECK FOR CORRECT SIMA (SWITCH INPUT MODULE A) OPERATION
- Disconnect and inspect all SIMA 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 all SIMA connectors. Make sure they seat and latch correctly.
- Operate the system and 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 SIMA. Refer to: Switch Input Module A (SIMA) . 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.