Network
generic / SAE
U0108
Lost Communication With Alternative Fuel Control Module
The ECU has lost CAN communication with the alternative fuel control module (CNG/LPG/H2 systems). Either the module is not responding or the bus path is broken.
SystemNetwork
Typegeneric / SAE
GroupU0
Range / number1 / 08
Possible causes
- Module unpowered or fuse blown high
- CAN wiring to module broken medium
- Gateway module routing CAN messages incorrectly low
Symptoms
- Multiple warning lights may illuminate
- Affected modules may go into limp mode or shut down
- Specific functions inoperative depending on module
- Diagnostic tools may show communication faults
Inspection / repair
- Difficulty: medium
- DIY: possible
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References
sae:J2012