P1370 Cadillac Code – 4X Ignition Control Module Reference Circuit Too Many Pulses

Code P1370 Cadillac Description

The P1370 code for Cadillac vehicles indicates a problem with the ignition control module (ICM) 4X reference circuit, specifically too many pulses detected. The ICM is responsible for controlling the engine’s ignition timing, ensuring that the spark plugs fire at the right time to optimize engine performance. When too many pulses are detected in the reference circuit, it can lead to misfires, poor engine performance, and potentially even engine stalling.

Common Causes of P1370 Cadillac

NOTE: The listed causes may not be a complete list of all potential problems, and there may be other causes.

1. Faulty wiring or connections in the ICM 4X reference circuit
2. Faulty ignition control module (ICM)
3. Problems with the engine crankshaft position sensor
4. Corrosion or damage to associated components
5. Exposure to excessive heat

Symptoms of P1370 Cadillac

1. Engine misfires
2. Rough idling
3. Hesitation during acceleration
4. Reduced engine power
5. Engine stalling

How to Fix Code P1370 Cadillac

1. Diagnose the specific cause of the problem by performing a thorough inspection of the ICM 4X reference circuit, the ICM, and associated components.
2. Repair or replace any damaged wiring or connections in the ICM 4X reference circuit.
3. Test the ignition control module (ICM) and replace it if found to be faulty.
4. Check and possibly replace the engine crankshaft position sensor if necessary.
5. Clear the diagnostic codes, reset the engine control module, and test the vehicle to ensure the issue has been resolved.