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2000 ACURA NSX
3.2L V6•RWD•MANUAL•gas
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Repairs0Labor483Torque2120Fluid8DTC928Battery1Maintenance0Recalls0
P1607high severityPowertrain

ECM/PCM Internal Circuit Failure A

on 2000 Acura NSX 3.2L V6 · RWD

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

  1. Check battery voltage
  2. Inspect ECM connectors
  3. Monitor during cold start
  4. Test ECM outputs

Repair notes

Replace or repair ECM/PCM.

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