P2E21

Drive Motor A Phase Y Current Sensor Circuit Low

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–111 (est.)

Symptoms

Reduced motor power
Rough engine operation
Check Engine Light Illuminates
Reduced system efficiency
Possible errors in other systems

Causes

Phase Y current sensor fault
Open or short circuit in the sensor circuit
Poor connection or corroded connectors
Problems with the engine control unit
Mechanical damage to wiring

How to Fix

Check the continuity of the phase Y current sensor circuit
Inspect connectors and connections for corrosion or damage
Check the functionality of the current sensor
Scan the control unit for additional errors
If necessary, replace the sensor or repair the wiring

Related codes

P2E20 P2E22 P2E23