Hybrid/EV Battery Positive Contactor Control Circuit Range/Performance

Check these first

• A battery positive contactor that is opening or closing late
• High resistance in the positive contactor control circuit
• A battery positive contactor with pitted contacts
• A control module misreading contactor timing

What to do next

1. Read positive contactor command and state on a scan tool
2. Measure resistance in the positive contactor control circuit
3. Check the positive contactor coil for pitting
4. Verify the battery voltage is stable
5. Replace the positive contactor if the circuit tests good
6. Clear the code and retest

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