Network
generic / SAE
U0105
Lost Communication with Fuel Injector Control Module
The Fuel Injector Control Module has stopped transmitting on the vehicle data bus, so other control units no longer receive its messages. Injection-timing data is lost, which can stall the engine or prevent a start. Typical causes are loss of power or ground at the module, an open or shorted CAN/LIN bus wire, a connector fault, or an internal module failure.
SystemNetwork
Typegeneric / SAE
GroupU0
Range / number1 / 05
Possible causes
- Injector control module unpowered high
- CAN wiring to FICM 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: hard
- DIY: shop recommended
- Estimated cost: 100–2000 €
- Estimated time: 1–6 h
- Component: fuel injector control module
- Component: can bus wiring
- MIL / check engine light
- emissions-relevant
- limp mode possible
Sources
References
sae:J2012