P1630
ECM Malfunction
2001-2006 Lexus LS 430 4.3L V8 🇷🇺
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
- 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
P1630 on Other Vehicles
Common Questions
What does code P1630 mean on a 2001-2006 Lexus LS 430?
P1630 stands for "ECM Malfunction". A general ECM internal malfunction has been detected during self-testing.
What are the symptoms of P1630 on a Lexus LS 430?
Common symptoms of P1630 include: CEL, Various drivability issues, Poor running, No start possible.
What causes P1630 on a 2001-2006 Lexus LS 430?
Common causes of P1630 include: Internal ECM failure, Power supply issues, Poor grounds, Water intrusion.