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.
Wire colors may be substituted for SRS circuits.
1.
Problem verification:

Problem verification
?1.
Clear the DTCs with the HDS.


?2.
Turn the vehicle to the OFF (LOCK) mode and then the ON mode.

?3.
Wait for at least 6 seconds.

?4.
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 connector A (32P)
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 connector A (32P): disconnected
SRS unit connector A (39P): disconnected
Test point 1
Gauge control module connector A (32P) No. 19
Test point 2
SRS unit connector A (39P) No. 20


Is there continuity?

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