Timing Reference High Resolution Signal A
A general electrical fault on the high-resolution timing reference signal A — used by ignition and injection systems for precise crank angle measurement (typically a 60-2 or 36-1 tone wheel signal).
Affected components
- Crankshaft position sensor
Common causes
- High likelihood: Sensor or signal path failed
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
Related codes
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.