(Hybrid) No Crank With DTC U1812 - keywords 2-mode code control crank dtc gateway module dtc electrical hybrid mode no serial sensor start two two-mode u1812 up

This PI was superceded to add 2009 model year. Please discard PIT4682.

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Some customers may experience a no crank/no start condition with DTC U1812 set in the Battery Pack Control Module (BPCM). If the vehicle does not crank and the customer holds the key in the crank position for longer than three seconds, it is possible for the DTC: U1812 to set.

If you have a vehicle that has a "no crank" concern and DTC U1812 is set, use the Tech 2 scan tool to clear the code. If the code clears and does not immediately reset upon turning to the crank position, please follow the "no crank" diagnosis (Document ID: 2010546) in SI2000. Please do not try to replace the battery pack to resolve this concern.

Note: If you erase the DTC U1812 and the code resets without cranking for longer than three seconds, please follow normal diagnosis in SI2000.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.