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DTC - Diagnostic Trouble Codes information

P0788

Powertrain Codes

P0788 - ISUZU - 3-2 Shift Solenoid Control Circuit High Voltage

Symptoms

- Engine Light ON (or Service Engine Soon Warning Light)

Possible Causes

- Low transmission fluid level - Dirty transmission fluid - Faulty shifting solenoid valve - Shifting solenoid valve harness or connectors - Shifting solenoid valve circuit is open or shorted

When Detected

Code P0788 is detected when the Engine Control Module (ECM) detects open in solenoid valve ST circuit 4 times when solenoid valve ST is operated

Description

Shift solenoid valve ST is switched ON OFF by a signal from Engine Control Module (ECM) so that let in or out timing of 2nd brake is adjusted by operating orifice control valve. Therefore, shift solenoid valve ST operates when letting in or out reverse clutch.