P2C9A

Throttle Actuator B Control Exceeded Learning Limit

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–89 (est.)

Symptoms

Unstable engine operation at idle
Dips during acceleration
Switching to emergency mode
Power Loss
Check Engine Light Illuminates

Causes

Throttle valve sticking
Throttle actuator malfunction
Drive power or grounding problems
Throttle assembly contamination
Engine control unit (ECU) malfunction

How to Fix

Cleaning the throttle body
Checking the electrical connections of the drive
Diagnostics of the throttle valve actuator
Checking the integrity of the wiring harness
Flashing or replacing ECU

Related codes

P2100 P2101 P2119 P2135