IC Module 4X Reference Circuit Too Many Pulses
2007-2007 Cadillac CTS 3.2L V6
The 2007 Cadillac CTS is equipped with a 3.2L V6 engine. Below you'll find detailed p1370 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
The PCM detected too many pulses from the 4X reference signal in the ignition control circuit. This can be caused by electrical noise or a failing component.
Symptoms
- Check Engine Light
- Engine misfires
- Timing issues
- Rough running
Common Causes
- Damaged crankshaft reluctor wheel (extra material)
- Electrical noise in 4X circuit
- Faulty ignition control module
- Wiring interference
Diagnostic Steps
- Scope 4X reference signal for extra pulses
- Inspect crankshaft reluctor wheel
- Check wiring for electromagnetic interference
- Test IC module
Repair Notes
Inspect reluctor wheel for damage. Shield wiring from interference sources. Replace IC module if faulty.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P1370 on Other Vehicles
Common Questions
What does code P1370 mean on a 2007-2007 Cadillac CTS?
P1370 stands for "IC Module 4X Reference Circuit Too Many Pulses". The PCM detected too many pulses from the 4X reference signal in the ignition control circuit. This can be caused by electrical noise or a failing component.
What are the symptoms of P1370 on a Cadillac CTS?
Common symptoms of P1370 include: Check Engine Light, Engine misfires, Timing issues, Rough running.
What causes P1370 on a 2007-2007 Cadillac CTS?
Common causes of P1370 include: Damaged crankshaft reluctor wheel (extra material), Electrical noise in 4X circuit, Faulty ignition control module, Wiring interference.
Last updated: March 2026