Category: OBDii Powertrain Codes

P1780 Park/Neutral Position Switch Malfunction Possible causes – Faulty Park/Neutral Position (PNP) switch– Park/Neutral Position (PNP) switch harness is open or shorted– Park/Neutral Position (PNP) switch circuit poor electrical connection– Misadjusted Park/Neutral Position (PNP) switch Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1780 Description The Park/Neutral Position (PNP) switch detects the…

P1781 4×4 Low Switch is Out of Self-Test Range

P1782 2/4-OD Pressure Switch Circuit Possible causes – Low transmission fluid level – Dirty transmission fluid – Faulty 2/4-OD Pressure Switch – 2/4-OD Pressure switch poor electrical connection – 2/4-OD Pressure switch circuit is open or shorted Symptoms – Engine Light ON (or Service Engine Soon Warning Light) – Transmission shift shock P1782 Description The…

P1783 Transmission Overtemperature Condition Possible causes – Transmission temperature sensor harness is open or shorted– Transmission temperature sensor circuit poor electrical connection– Faulty transmission temperature sensor Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1783 Description Engine at operating temperature and the Engine Control Module (ECM) detected the transmission temperature sensor was…

P1784 Transmission Mechanical Failure – First And Reverse Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1778 Transmission Reverse I/P Circuit Malfunction Possible causes – Faulty Step Motor Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1778 Description The step motor’s 4 aspects of ON/OFF change according to the signal from Transmission Control Module (TCM). As a result, the flow of line pressure to primary pulley is changed…

P1773 Problem in A/T Clutch Pressure Control Solenoid Valve B Circuit

P1774 Low Coast Brake Solenoid Valve Function Possible causes – Faulty Low Coast Brake Solenoid Valve– Low Coast Brake Solenoid Valve harness is open or shorted– Low Coast Brake Solenoid Valve circuit poor electrical connection Tech description There is a service bulletin for a various Models with the RE5R05A transmission.Factory Service Bulletin OBDII Code P1774…

P1775 Transmission System MIL Fault Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1776 Ignition Retard Request Duration Fault Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1777 Ignition Retard Request Circuit Fault Possible causes – Step Motor harness is open or shorted – Step Motor poor electrical connection – Faulty Step Motor P1777 Description The step motor changes the step with turning 4 coils ON/OFF according to the signal from Transmission Control Module (TCM). As a result, the flow of line…

P1767 High and Low Reverse Clutch Solenoid Valve Possible causes – Faulty High and Low Reverse Clutch Solenoid Valve– High and Low Reverse Clutch Solenoid Valve harness is open or shorted– High and Low Reverse Clutch Solenoid Valve circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1767 Description…

P1768 A/T Clutch Pressure Control Solenoid Valve Circuit Possible causes – Clutch Pressure Control Solenoid Valve harness is open or shorted– Clutch Pressure Control Solenoid Valve circuit poor electrical connection– Faulty Clutch Pressure Control Solenoid Valve Tech description The Clutch Pressure Control Solenoid Valve is located inside the transmission. Symptoms – Engine Light ON (or…

P1769 High and Low Reverse Clutch Solenoid Valve Function Possible causes – Faulty High and Low Reverse Clutch Solenoid Valve– High and Low Reverse Clutch Solenoid Valve harness is open or shorted– High and Low Reverse Clutch Solenoid Valve circuit poor electrical connection Tech description There is a service bulletin for a various Models with…

P1770 Clutch Solenoid Circuit Malfunction Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1771 Shifting Position

P1772 Low Coast Brake Solenoid Valve Possible causes – Faulty Low Coast Brake Solenoid Valve– Low Coast Brake Solenoid Valve harness is open or shorted– Low Coast Brake Solenoid Valve circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1772 Description Low coast brake solenoid valve is turned

P1762 Direct Clutch Solenoid Valve Possible causes – Faulty Direct Clutch Solenoid Valve– Direct Clutch Solenoid Valve harness is open or shorted– Direct Clutch Solenoid Valve circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1762 Description Direct clutch solenoid valve is controlled by the Transmission Control Module (TCM)…

P1763 Skip Shift Solenoid Circ Technical Service Bulletins for P1763 code

P1764 Direct Clutch Solenoid Valve Function Possible causes – Faulty Direct Clutch Solenoid Valve– Direct Clutch Solenoid Valve harness is open or shorted– Direct Clutch Solenoid Valve circuit poor electrical connection Tech description There is a service bulletin for a various Models with the RE5R05A transmission.Factory Service Bulletin OBDII Code P1764 Symptoms – Engine Light…