P007F: Charge Air Cooler Temperature Sensor Bank1/Bank2 Correlation — what it means, the affected system and what to check before replacing parts.
Meaning, symptoms, causes and checks
The control module detects a mismatch between bank 1 and bank 2 temperature readings. This describes a measurement or signal condition, not proof that the air cooler itself has failed. Check installed sensor channels and interpret the readings using the exact vehicle procedure; electrical high/low is not necessarily physical temperature high/low.
Affected system: Charge-air-cooler temperature sensing
Symptoms
- Warning light may illuminate
- Related system function may be impaired
- Vehicle-specific symptoms vary
Possible causes
- Implausible sensor or switch signal, poor ground, connector corrosion, or wiring damage
- Related wiring, connector, power or ground fault
- Vehicle-specific mechanical or control issue
What to check
- Record stored and pending codes and freeze-frame data
- Compare the named sensor or switch signal with actual operating conditions; inspect the connector, reference supply, ground and harness.
- Confirm measured values against the vehicle service information
- Retest under the conditions that set the code
- Compare the named sensor or switch signal with actual operating conditions; inspect the connector, reference supply, ground and harness.
- Repair the verified cause and confirm the code does not return
Also written as: P007F-00, P007F00, PO07F (some scan tools add the fault-type byte, e.g. -00).