What causes P1633 on a Toyota?

ECM throttle control strategy fault Failing throttle body confusing the ECM Software fault needing an update Intermittent throttle signals Low system voltage

How do I fix P1633 on a Toyota?

Check for companion throttle codes Verify system voltage Check for ECM calibration updates Test throttle signals Replace the throttle body before the ECM

P1633 ECM Throttle Actuator Control System Malfunction

Q: What does P1633 mean on a Toyota?

P1633 — ECM Throttle Actuator Control System Malfunction. Applies to Camry, Corolla, RAV4 with ETCS-i.

Category: Powertrain - Computer and Auxiliary Controls
Severity: Check Engine Light
Applies to: Camry, Corolla, RAV4 with ETCS-i

What does P1633 mean on a Toyota?

P1633 — ECM Throttle Actuator Control System Malfunction. This Toyota-enhanced code applies to Camry, Corolla, RAV4 with ETCS-i.

Common causes of P1633

ECM throttle control strategy fault
Failing throttle body confusing the ECM
Software fault needing an update
Intermittent throttle signals
Low system voltage

How to fix P1633

Check for companion throttle codes
Verify system voltage
Check for ECM calibration updates
Test throttle signals
Replace the throttle body before the ECM