Possible causes – Low transmission fluid level– Dirty transmission fluid– Faulty shifting solenoid valve– Shifting solenoid valve harness is open or shorted– Shifting solenoid valve circuit poor electrical connection When is the obd code mean? Code P0787 is detected when the Engine Control Module (ECM) detects short in solenoid valve ST circuit 4 times when…
Tag: ISUZU
P0788 ISUZU 3-2 Shift Solenoid Control Circuit High Voltage
Possible causes – Low transmission fluid level– Dirty transmission fluid– Faulty shifting solenoid valve– Shifting solenoid valve harness is open or shorted– Shifting solenoid valve circuit poor electrical connection When is the obd code mean? Code P0788 is detected when the Engine Control Module (ECM) detects open in solenoid valve ST circuit 4 times when…
P0785 ISUZU 3-2 Shift Solenoid Circuit Electrical
Possible causes – Low transmission fluid level– Dirty transmission fluid– Faulty shifting solenoid valve– Shifting solenoid valve harness is open or shorted– Shifting solenoid valve circuit poor electrical connection When is the obd code mean? The P0785 code is detected when the PCM detects a continuous open, short to ground or short to power in…
P0752 ISUZU 1-2 Shift Solenoid Stuck On
Possible causes – Low transmission fluid level– Dirty transmission fluid– Faulty solenoid valve– Shift Solenoid valve harness or connectors– Shift Solenoid valve circuit is open or shorted Tech description When the a transmission solenoid is stuck on, in most cases the problem is not the electrical part of the solenoid; the problem is foreign material…
P0118 ISUZU Engine Coolant Temperature Sensor 1 Circuit High Voltage
Possible causes – Low engine coolant level– Faulty Engine Coolant Temperature (ECT) sensor– Faulty engine coolant thermostat– Engine Coolant Temperature (ECT) sensor harness is open or shorted– Engine Coolant Temperature (ECT) sensor electrical circuit poor connection When is the obd code mean? An excessively high voltage from the sensor is sent to ECM. Symptoms –…
P0126 ISUZU Insufficient Coolant Temperature for Stable Operation
Possible causes – Low engine coolant level– Leaking or stuck open thermostat– Faulty Engine Coolant Temperature (ECT) sensor– Engine Coolant Temperature (ECT) sensor harness is open or shorted– Engine Coolant Temperature (ECT) sensor electrical circuit poor connection When is the obd code mean? The voltage sent to Engine Control Module (ECM) from the sensor is…
P1259 ISUZU VTEC System Malfunction
Possible causes – Low engine oil pressure or level– Open or short circuit condition– Faulty VTEC oil pressure switch– Faulty VTEC solenoid When is the obd code mean? The P1259 is set when there is a problem in the VTEC Oil Pressure Switch circuit or VTEC Solenoid Valve circuit Symptoms – Engine Light ON (or…
P0193 ISUZU Fuel Rail Pressure Sensor Circuit High Voltage
Possible causes – Low or no fuel– Faulty Fuel Rail Pressure Sensor– Fuel Rail Pressure Sensor harness is open or shorted– Fuel Rail Pressure Sensor circuit poor electrical connection– Faulty Fuel Pump Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– Engine will not start P0193 ISUZU OBD Code Description The Fuel Rail…
P1138 ISUZU HO2S 2 Voltage Stays High Rich Condition
Possible causes – Leaking injector or regulator– Engine ignition misfire– Engine mechanical condition– Faulty HO2S– HO2S Sensor 2 harness is open or shorted– HO2S Sensor 2 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
P0128 ISUZU Engine Coolant Temperature Below Thermostat Regulating Temperature
Possible causes – Leaking or stuck open thermostat– Low engine coolant level– Insufficient warm up time– Faulty engine coolant temperature sensor– Engine coolant temperature sensor harness is open or shorted– Engine coolant temperature sensor circuit poor electrical connection Tech description If cooling system is not leaking and the fluid level is OK, replacing the thermostat…