P1377
Ignition Control Module Cam Ref Pulse To 4X Ref Pulse Incorrect
P1377 is an OBD-II diagnostic trouble code meaning: Ignition Control Module Cam Ref Pulse To 4X Ref Pulse Incorrect. Common causes: camshaft position sensor malfunction, problems with the crankshaft sensor. Estimated repair cost: $13–89.
Symptoms
- Unstable engine operation
- Reduced engine power
- Increased fuel consumption
- Difficulty starting the engine
- Check engine light is on
Causes
- Camshaft position sensor malfunction
- Problems with the crankshaft sensor
- Ignition module malfunction
- Damage to wiring or connectors
- Timing belt/chain problems (stretching or jumping)
How to Fix
- Check the camshaft position sensor and its wiring
- Check the crankshaft sensor and its wiring
- Check the ignition module
- Check the condition of the timing belt/chain
- If necessary, replace faulty components
Related codes
Error P1377 by Vehicle Brand
FAQ
What does the P1377 code mean?
P1377 is an OBD-II diagnostic trouble code that indicates: Ignition Control Module Cam Ref Pulse To 4X Ref Pulse Incorrect
What causes a P1377 error code?
The most common causes of P1377 include: Camshaft position sensor malfunction; Problems with the crankshaft sensor; Ignition module malfunction; Damage to wiring or connectors.
How do I fix a P1377 diagnostic trouble code?
To fix P1377: Check the camshaft position sensor and its wiring. Check the crankshaft sensor and its wiring. Check the ignition module. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1377?
Limited driving only, diagnose soon
How much does it cost to fix P1377?
The estimated repair cost for P1377 is $13–89. Actual cost depends on your vehicle, location, and labor rates.
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