P0A40

Drive Motor A Position Sensor Circuit Range/Performance

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$33–89 (est.)

Symptoms

Check Engine light comes on
The engine is unstable
Power reduction
The car goes into emergency mode
Problems starting the engine

Causes

Engine position sensor A fault
Open or short circuit in the sensor circuit
Poor contact in the sensor connector
Wiring harness damage
Problems with the engine control unit

How to Fix

Check engine position sensor A
Inspect the sensor circuit for damage
Check the contacts in the sensor connector
Replace sensor if necessary
Test the engine control unit

Related codes

P0A41 P0A42 P0A43