P1870 - Transmission Component Slipping
Repair Importance Level:
Repair Difficulty Level:
- Engine Light ON (or Service Engine Soon Warning Light)
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 to the output shaft speed
P1870 Information for specific makes
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