P1608
ECM/PCM Internal Circuit Failure B
1997-1997 Acura CL 2.2L I4
High SeverityPowertrain
The 1997 Acura CL is equipped with a 2.2L inline-4 engine. Below you'll find detailed p1608 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
Secondary internal ECM/PCM circuit malfunction.
Symptoms
- CEL
- Various drivability issues
- Stalling
- Rough running
- Shift problems
Common Causes
- Internal PCM failure
- Poor power supply
- Corroded connectors
- Water intrusion
Diagnostic Steps
- Check ECM power supply
- Inspect connectors
- Test for water damage
- Monitor ECM
Repair Notes
Replace ECM/PCM.
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
P1608 on Other Vehicles
Common Questions
What does code P1608 mean on a 1997-1997 Acura CL?
P1608 stands for "ECM/PCM Internal Circuit Failure B". Secondary internal ECM/PCM circuit malfunction.
What are the symptoms of P1608 on a Acura CL?
Common symptoms of P1608 include: CEL, Various drivability issues, Stalling, Rough running, Shift problems.
What causes P1608 on a 1997-1997 Acura CL?
Common causes of P1608 include: Internal PCM failure, Poor power supply, Corroded connectors, Water intrusion.
Last updated: March 2026