P1860
02-19-2010, 10:44 PM
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P1860
P1860
Description
Torque converter clutch pulse width modulation solenoid
Code type, Electrical
Symptoms
Trans may slip as it holds in 3rd gear
Disable shift adapts
Inhibits TCC
Inhibits 4th gear in hot mode
Causes
Description
Torque converter clutch pulse width modulation solenoid
Code type, Electrical
Symptoms
Trans may slip as it holds in 3rd gear
Disable shift adapts
Inhibits TCC
Inhibits 4th gear in hot mode
Causes
- Failure of pressure control solenoid
- Failure of TCC/PWM solenoid
- Short in wire harness
- Loss of 12v on pin E
- Check for 12v on pin E
- Check for Ohms on pins C-D, 3-5ohms at 68*f If out of range, replace EPC
- Check for Ohms on pins T-E, 10-12ohms at 68*f, if out of range replace TCC/PWM solenoid
- Check for short on wire harness
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