- The shift interlock system does not release/lock correctly/is blocked
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- Damaged brake shift interlock actuator
- Circuitry open/shorted
- Damaged brake pedal position (BPP) switch
- Damaged selector lever
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- The shift interlock system is blocked or not operating
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- Circuitry shorted
- Park interlock solenoid sticking/defect
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- Key cannot be turned to the OFF position when the selector lever is in PARK or the key can be turned to the OFF position when the selector lever is not in PARK
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- Circuitry open/shorted
- Damaged key removal inhibit solenoid
- Damaged selector lever
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- The shift control is out of correct gear relationship
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- Shift linkage out of adjustment
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- ADJUST linkage/selector lever cable.
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- It is impossible to get gearshift lever into PARK or 1 position.
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- Linkage/selector lever cable out of adjustment
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- ADJUST linkage/selector lever cable.
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- Selector lever defect (mechanical)
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- P1780 DTC no O/D cancel actuation
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- Damaged switch
- Circuitry open/shorted
- Vehicle
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