Network
generic / SAE
U066D
Lost Communication With Charge Air Cooler Temperature Sensor Bank 1
The vehicle bus reports loss of communication with smart charge air cooler (intercooler) temperature sensor on bank 1. Charge-air density correction switches to a substitute value.
SystemNetwork
Typegeneric / SAE
GroupU0
Range / number6 / 6D
Possible causes
- Bus wiring open or shorted high
- Module without power or ground medium
- Module failed medium
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: shop recommended
- Estimated cost: 80–600 €
- Estimated time: 0.5–2 h
- Component: cac temp sensor bank 1
- Component: vehicle bus wiring
- MIL / check engine light
- emissions-relevant
- drive cycle required
Sources
References
sae:J2012