What are the common causes of P2C93?

A contactor control supply voltage outside its expected range. High resistance in the contactor control supply circuit. A supply that sags under contactor load. An unstable supply connector.

Read battery contactor control supply voltage on a scan tool. Measure supply voltage under contactor load. Test the supply circuit for added resistance. Inspect the supply connector for an intermittent fit. Replace the battery contactor control module if the supply stays off. Clear the code and retest.

P2C93

Hybrid/EV Battery Contactor Control Supply Circuit Range/Performance

System: Powertrain control (P code)
Lamp: Check Engine Light
Category: Powertrain - Hybrid Propulsion

What it means

P2C93 means Hybrid/EV Battery Contactor Control Supply Circuit Range/Performance.

Check these first

A contactor control supply voltage outside its expected range
High resistance in the contactor control supply circuit
A supply that sags under contactor load
An unstable supply connector

What to do next

Read battery contactor control supply voltage on a scan tool
Measure supply voltage under contactor load
Test the supply circuit for added resistance
Inspect the supply connector for an intermittent fit
Replace the battery contactor control module if the supply stays off
Clear the code and retest

Look up another code

Code or symptom

Enter a full code or a symptom. Press / to search. How to read a code

Type a code above, or start from a symptom or a common code.

Updated

Generic SAE J2012 definition. Last updated 2026-10-10.