P0A88

14 Volt Power Module Current Sensor A Circuit Low

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$28–167 (est.)

Symptoms

Check Engine Light Is On
Hybrid system power reduction
Switching to emergency mode
Problems charging a 12-volt battery
Unusual readings on the dashboard

Causes

Malfunction of the current sensor in the 14-volt module
Open or short circuit in the sensor circuit
Poor contact in wiring connectors
Malfunction of the 14-volt power module itself
Circuit Grounding Problems

How to Fix

Check the continuity and resistance of the sensor circuit
Inspect connectors and contacts for oxidation or damage
Check the voltage and signal from the current sensor
If necessary, replace the current sensor
Check the operation of the 14-volt power module

Related codes

P0A89 P0A8A P0A8B