P1608high severityPowertrain
ECM/PCM Internal Circuit Failure B
on 2018 Acura TLX 2.4L I4 · AWD
What this code means
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 on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1