Network
generic or reserved
U3017
Control Module Timer/Clock Performance
The control module's internal timer or clock has drifted or stopped — affects time-stamped diagnostic events, scheduled tasks and security challenges.
SystemNetwork
Typegeneric or reserved
GroupU3
Range / number– / 17
Possible causes
- Internal oscillator drifted high
- Gateway module routing CAN messages incorrectly low
- CAN terminating resistor (120 Ω) drifted out of spec 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: 300–2000 €
- Estimated time: 1–4 h
- Component: control module
- Component: module oscillator
- MIL / check engine light
Sources
References
sae:J2012