P1630
ECM Malfunction
2003-2008 Toyota Matrix 1.8L I4
High SeverityPowertrain
Description
A general ECM internal malfunction has been detected during self-testing.
Symptoms
- CEL
- Various drivability issues
- Poor running
- No start possible
Common Causes
- Internal ECM failure
- Power supply issues
- Poor grounds
- Water intrusion
Diagnostic Steps
- Check ECM power supply
- Test ground connections
- Inspect for water damage
- Test ECM outputs
Repair Notes
Replace ECM.
Other Powertrain Codes
- P0070Ambient Air Temperature Sensor Circuit
- P0071Ambient Air Temperature Sensor Range/Performance
- P0072Ambient Air Temperature Sensor Circuit Low
- P0073Ambient Air Temperature Sensor Circuit High
- P0115Engine Coolant Temperature (ECT) Sensor 1 Circuit
- P0116ECT Sensor 1 Circuit Range/Performance
- P0117ECT Sensor 1 Circuit Low Input
- P0118ECT Sensor 1 Circuit High Input
- P0119ECT Sensor 1 Circuit Intermittent
- P0125Insufficient Coolant Temperature for Closed Loop Fuel Control
P1630 on Other Vehicles
Common Questions
What does code P1630 mean on a 2003-2008 Toyota Matrix?
P1630 stands for "ECM Malfunction". A general ECM internal malfunction has been detected during self-testing.
What are the symptoms of P1630 on a Toyota Matrix?
Common symptoms of P1630 include: CEL, Various drivability issues, Poor running, No start possible.
What causes P1630 on a 2003-2008 Toyota Matrix?
Common causes of P1630 include: Internal ECM failure, Power supply issues, Poor grounds, Water intrusion.