|
DTC Troubleshooting: U0100
DTC U0100: Gauge control module lost communication with ENG/AT
|
DTC Description |
DTC |
|
U0100 Gauge control module lost communication with ENG/AT |
| |
|
NOTE: If you have any loss of communication DTCs for the PCM, troubleshoot those DTCs first.
|
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 |
|
U0100 Gauge control module lost communication with ENG/AT |
| |
| | |
Is DTC U0100 indicated?
|
|
|
|
|
|
|
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. |
Jump the SCS line with the HDS.
|
|
?3. |
Disconnect the following connectors.
|
PCM connector A (51P) |
|
Gauge control module 32P connector | |
| |
|
?4. |
Check for continuity between test points 1 and 2 respectively.
|
Test condition |
Vehicle OFF (LOCK) mode
PCM connector A (51P): disconnected
Gauge control module 32P connector: disconnected |
|
Test point 1 |
|
|
Test point 2 |
| |
|
|
Test point 1 |
|
|
Test point 2 |
| |
| | |
Is there continuity?
|
|
|
|
|
|
|
An open or poor connection in the F-CAN wire(s).? | |