P1370 Code - Ignition Control Module 4X Reference Circuit Too Many Pulses
Quick Answer
The diagnostic trouble code P1370 indicates that the Ignition Control Module (ICM) has detected too many pulses on the 4X reference circuit. Common causes include Faulty wiring or connections in the 4X reference circuit, Malfunctioning Ignition Control Module (ICM), Issues with the crankshaft position sensor. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1370 indicates Ignition Control Module 4X Reference Circuit Too Many Pulses.
- Common causes
- Common causes include Faulty wiring or connections in the 4X reference circuit, Malfunctioning Ignition Control Module (ICM), Issues with the crankshaft position sensor.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P1370 Description
The diagnostic trouble code P1370 indicates that the Ignition Control Module (ICM) has detected too many pulses on the 4X reference circuit. The 4X reference circuit is responsible for providing a signal to the ICM that helps synchronize the ignition system with the engine's rotation. When the ICM detects an abnormal number of pulses on this circuit, it can lead to issues with ignition timing, misfires, and overall engine performance.
Common Causes of P1370
- Faulty wiring or connections in the 4X reference circuit
- Malfunctioning Ignition Control Module (ICM)
- Issues with the crankshaft position sensor
- Corrosion or damage to electrical components
- Engine overheating leading to sensor malfunction
Symptoms of P1370
- Rough idling
- Hesitation during acceleration
- Decreased fuel efficiency
- Engine stalling
- Misfires
How to Fix P1370
- Perform a thorough inspection of the 4X reference circuit, checking for any loose connections or damaged wiring.
- Test the Ignition Control Module (ICM) to determine if it is functioning properly.
- Check the crankshaft position sensor for proper operation and alignment.
- Replace any faulty components, such as the ICM, sensor, or wiring harness.
- Clear the diagnostic trouble codes and perform a test drive to ensure the issue has been resolved.
Cost to Fix P1370
The typical repair costs for addressing the P1370 code can vary depending on the specific cause of the issue. In general, parts such as a new Ignition Control Module or crankshaft position sensor can range from $100 to $300, while labor costs can add another $100 to $200. Overall, the total repair cost could range from $200 to $500. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check local rates for a more accurate estimate.
Need more information about the P1370 code?
Need more information on how to fix the P1370 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1370 code diagnosed by a professional: Find a repair shop in your area
Code P1370 Information for Specific Makes
- P1370 Audi — Cylinder 6 Ignition Circuit Open
- P1370 Buick — Ignition Control Module 4X Reference Circuit Too Many Pulses
- P1370 Cadillac — Ignition Control Module 4X Reference Circuit Too Many Pulses
- P1370 Chevrolet — Ignition Control Module 4X Reference Circuit Too Many Pulses
- P1370 GMC — Ignition Control Module 4X Reference Circuit Too Many Pulses
- P1370 Volkswagen — Cylinder 6 Ignition Circuit Open
Frequently Asked Questions about P1370 Code
No Frequently Asked Questions about P1370 Code found.
Discuss the causes and fixes for P1370 OBDII Code
Code P1370 comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.