P0890

Test 1-2:

Test 3-5:

SYMPTOM
P0890-SWITCHED BATTERY

WHEN MONITORED
Ignition key is turned from "off" position to "run" position and/or ignition key is turned from "crank" position to "run" position.

SET CONDITION
This code is set if the Transmission Control Module (TCM) senses voltage on any of the pressure switch inputs prior to the TCM energizing the relay.

POSSIBLE CAUSES
- PRESSURE SWITCH SENSE CIRCUIT SHORT TO VOLTAGE
- TRANSMISSION CONTROL MODULE
- INTERMITTENT WIRING AND CONNECTORS