OBD Guide

P2D97

Starter/Generator Phase Z Current Sensor Circuit Low

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$33–89 (est.)

Symptoms

  • Check Engine Light Is On
  • Problems starting the engine
  • Reduced battery charging efficiency
  • Unstable generator operation

Causes

  • Phase Z current sensor fault
  • Open or short circuit in the sensor circuit
  • Poor contact in sensor connectors
  • Malfunction of the starter-generator control module

How to Fix

  1. Check the continuity of the phase Z current sensor circuit
  2. Inspect the connectors and contacts of the sensor
  3. Check the sensor signal using a diagnostic scanner
  4. Replace phase Z current sensor if necessary

Related codes

Error P2D97 by Vehicle Brand