P1607high severityPowertrain
ECM/PCM Internal Circuit Failure A
on 2005 Acura TSX 2.4L I4 · FWD
What this code means
Internal ECM/PCM circuit malfunction, often during cold weather.
Symptoms
- CEL
- Rough running
- TCS light
- Erratic shifting
- Stalling
- Tach reads zero
Common causes
- Bad solder joints
- Cold-sensitive components
- Low battery
- Corroded connectors
Diagnostic steps
- Check battery voltage
- Inspect ECM connectors
- Monitor during cold start
- Test ECM outputs
Repair notes
Replace or repair ECM/PCM.
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P0014
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P0015
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