FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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P0890











SYMPTOM
P0890 - SWITCHED BATTERY

WHEN MONITORED
Ignition key is turned from the OFF position to RUN position and/or ignition key is turned from the CRANK position to RUN position.

SET CONDITION
This DTC is set if the Transmission Control Module senses voltage on any of the Pressure Switch Inputs prior to the TCM energizing the Transmission Control Relay.

POSSIBLE CAUSES
- INTERMITTENT WIRING AND CONNECTORS
- 2/4 PRESSURE SWITCH SENSE CIRCUIT SHORT TO VOLTAGE
- L/R PRESSURE SWITCH SENSE CIRCUIT SHORT TO VOLTAGE
- OD PRESSURE SWITCH SENSE CIRCUIT SHORT TO VOLTAGE
- TCM - SWITCHED BATTERY