OBD-II reference

All 9.533 generic OBD-II codes, explained in detail.

Causes, inspection steps and sources — a comprehensive DIY archive. Created and maintained with love for the detail. Good luck and have fun!

Powertrain generic / SAE

P007E

Charge Air Cooler Temperature Sensor Circuit Intermittent/Erratic Bank 1

Intermittent dropouts or noise on the charge air cooler temperature sensor signal on bank 1. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.

SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number– / 7E

Possible causes

  • Connector loose or corroded high
  • Connector with intermittent contact under vibration low
  • Harness routed against vibrating component low

Inspection / repair

  • Difficulty: medium
  • DIY: possible
  • Estimated cost: 40–300 €
  • Estimated time: 0.5–2 h
  • Component: cac temperature sensor
  • Component: sensor wiring
  • MIL / check engine light
  • emissions-relevant
  • drive cycle required

Sources

References

How to read OBD-II codes

The first letter names the vehicle system, the second digit distinguishes generic from manufacturer-specific, the remaining digits group fault area and number.

PPowertrain: engine, transmission, emissions
BBody: chassis trim, comfort, interior
CChassis: suspension, brakes, steering
UNetwork: CAN, control modules, communication