Powertrain
generic / SAE
P0D78
A/C Compressor Control Module Output Driver Temperature Sensor Circuit Low
The ECM detects a low fault on the a/c compressor control module output driver temperature sensor circuit. Reading cannot be used reliably for control.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / numberD / 78
Possible causes
- Signal wire shorted to ground high
- Internal sensor short medium
- Connector pins corroded - high contact resistance low
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 200–1200 €
- Estimated time: 1–4 h
- Component: ac compressor cm output driver temp sensor
- Component: wiring harness
- Component: ac compressor module
- MIL / check engine light
- limp mode possible
Sources
References
sae:J2012