P0770

SYMPTOM
P0770 - 4C SOLENOID CIRCUIT

WHEN MONITORED
Initially at power-up, then every 10 seconds thereafter. They will also be tested immediately after a gear ratio or pressure switch error is detected.

SET CONDITION
Three consecutive solenoid continuity test failures, or one failure if test is run in response to a gear ratio or pressure switch error.

POSSIBLE CAUSES
- RELATED RELAY DTC'S PRESENT
- INTERMITTENT WIRING AND CONNECTORS
- 4C SOLENOID CONTROL CIRCUIT OPEN
- TRANSMISSION CONTROL RELAY OUTPUT CIRCUIT OPEN
- 4C SOLENOID CONTROL CIRCUIT SHORT TO GROUND
- 4C SOLENOID CONTROL CIRCUIT SHORT TO VOLTAGE
- SOLENOID/TRS ASSEMBLY - 4C SOLENOID
- TCM - 4C SOLENOID CIRCUIT