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P2AC8 Powertrain

Charge Air Cooler Coolant Temperature Sensor B Range/Performance

The charge air cooler coolant temperature B signal does not match plausibility checks against related signals. Sensor drift.

Affected components

  • Charge air cooler coolant temp sensor b
  • Wiring harness
  • Ecm

Common causes

  • High likelihood: Sensor characteristic drifted
  • Medium likelihood: Sensor mounting displaced from reference path
  • Low likelihood: Sensor element aged beyond calibration window

Diagnostic notes

  • The malfunction indicator lamp may illuminate

Sources

Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.

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