Possible causes – Trailer towing may set code– Check transmission fluid level– Internal transmission fault Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1870 CHEVROLET Description Transmission is in 4th gear with Torque Converter Clutch (TCC) engaged
Possible causes – Trailer towing may set code– Check transmission fluid level– Internal transmission fault Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1870 CADILLAC Description Transmission is in 4th gear with Torque Converter Clutch (TCC) engaged
Possible causes – Trailer towing may set code– Check transmission fluid level– Internal transmission fault Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1870 BUICK Description Transmission is in 4th gear with Torque Converter Clutch (TCC) engaged
Possible causes – Trailer towing may set code– Check transmission fluid level– Internal transmission fault Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1870 ISUZU Description Transmission is in 4th gear with Torque Converter Clutch (TCC) engaged
Possible causes – Trailer towing may set code– Check transmission fluid level– Internal transmission fault Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1870 GMC Description Transmission is in 4th gear with Torque Converter Clutch (TCC) engaged
Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1870 Description Transmission is in 4th gear with Torque Converter Clutch (TCC) engaged and the Engine Control Moduel (ECM) has detected excessive slippage when comparing the input shaft speed
HONDA Technical Service Bulletins for P1870 code 1996 HONDA PASSPORT UNKNOWN OR OTHER 1997 HONDA PASSPORT UNKNOWN OR OTHER 1998 HONDA PASSPORT UNKNOWN OR OTHER 1999 HONDA PASSPORT UNKNOWN OR OTHER