DTC Troubleshooting: U0151
DTC U0151: Gauge control module lost communication with SRS unit
DTC Description
DTC
U0151 Gauge control module lost communication with SRS unit
 

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A.

NOTE: If you have any loss of communication DTCs for the PCM, troubleshoot those DTCs first.

*: Wire colors may be substituted for SRS circuits.

1.
Problem verification:

Problem verification
?1.
Turn the vehicle to the ON mode.

?2.
Clear the DTCs with the HDS.


?3.
Turn the vehicle to the OFF (LOCK) mode and then the ON mode.

?4.
Wait for at least 6 seconds.

?5.
Check for DTCs with the HDS.
DTC Description
DTC
U0151 Gauge control module lost communication with SRS unit
 

Is DTC U0151 indicated?

     
YES
     
     
     
Go to step 2.
     
NO
     
     
     
Intermittent failure, the system is OK at this time. Check for loose or poor connections.?
2.
Open wire check (F-CAN lines):

Open wire check (F-CAN lines)
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Disconnect the following connectors.
Gauge control module 32P connector
SRS unit connector A (39P)

?3.
Check for continuity between test points 1 and 2 respectively.
Test condition
Vehicle OFF (LOCK) mode
Gauge control module 32P connector: disconnected
SRS unit connector A (39P): disconnected



Is there continuity?

     
YES
     
     
     
The F-CAN wires are OK. Replace the gauge control module.?
     
NO
     
     
     
An open or poor connection in the wires.?