OBD Guide

P2D94

Starter/Generator Phase Z Current Sensor Circuit High

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • Difficulty starting the engine
  • Check Engine Light Is On
  • Reduced battery charging efficiency
  • Rough engine operation when starting
  • Activation of emergency operation

Causes

  • Phase Z current sensor fault
  • Open or short circuit in the sensor circuit
  • Wiring Harness Problems
  • Starter-generator module malfunction
  • Poor contact in connectors

How to Fix

  1. Check the integrity of the sensor circuit
  2. Check resistance and sensor signal
  3. Inspect connectors and contacts for oxidation
  4. If necessary, replace the current sensor
  5. Check the operation of the starter-generator module

Related codes

Error P2D94 by Vehicle Brand