OBD Guide
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P1A98

Starter/Generator Control Module Hybrid Battery Voltage Sensor Circuit High Voltage

P1A98 is an OBD-II diagnostic trouble code meaning: Starter/Generator Control Module Hybrid Battery Voltage Sensor Circuit High Voltage. Common causes: hybrid battery voltage sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $33–89.

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

Symptoms

  • Check Engine Light Is On
  • Reduced performance of the hybrid system
  • Problems charging the hybrid battery
  • Increased fuel consumption

Causes

  • Hybrid battery voltage sensor malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in circuit connectors
  • Starter/Generator Control Module Malfunction

How to Fix

  1. Check hybrid battery voltage sensor
  2. Inspect the wiring harness and connectors for damage.
  3. Check the voltage in the sensor circuit
  4. Replace sensor if necessary

Related codes

P1A99P1A97

FAQ

What does the P1A98 code mean?

P1A98 is an OBD-II diagnostic trouble code that indicates: Starter/Generator Control Module Hybrid Battery Voltage Sensor Circuit High Voltage

What causes a P1A98 error code?

The most common causes of P1A98 include: Hybrid battery voltage sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in circuit connectors; Starter/Generator Control Module Malfunction.

How do I fix a P1A98 diagnostic trouble code?

To fix P1A98: Check hybrid battery voltage sensor. Inspect the wiring harness and connectors for damage.. Check the voltage in the sensor circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1A98?

Yes, but get it checked soon

How much does it cost to fix P1A98?

The estimated repair cost for P1A98 is $33–89. Actual cost depends on your vehicle, location, and labor rates.

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