2012 Kia Optima Hybrid – Transmission Shift Fault With P1775 and U1007
- Aug 16
- 1 min read
CUSTOMER CONCERN
The transmission shifts incorrectly with OPU status-line DTC P1775 and C-CAN OPU timeout DTC U1007.
CAUSE
Power, ground and status-circuit testing isolated the fault to the Electric Oil Pump Unit.
CORRECTION
Remove and replace the Electric Oil Pump Unit, clear P1775 and U1007, and verify proper transmission shifting.
