DTC 39

Diagnostic Chart:

Wiring Diagram:

CIRCUIT DESCRIPTION
The PCM commands the Torque Converter Clutch Pulse Width Modulated (TCC PWM ) solenoid "ON" by modulating Torque Converter Clutch (TCC) signal fluid acting on the converter clutch shift valve. Then TCC apply fluid applies the torque converter clutch.

DTC 39 WILL SET WHEN
^ No DTC(s) 28,71, or 74.
^ TCC is commanded ON."
^ TCC slip speed greater than 65 RPM.
^ Trans range in D3 or D4.
^ 2nd or 3rd gear.
^ All conditions are met for two seconds.

ACTION TAKEN (PCM WILL DEFAULT TO)
Inhibits 4th gear if in hot mode.

DTC 39 WILL CLEAR WHEN
The fault condition(s) no longer exist, and the ignition switch is cycled "OFF" then "ON."

DTC CHART TEST DESCRIPTION
Number(s) below refer to circled number(s) on the diagnostic chart.
1. This checks the mechanical and hydraulic operation of the TCC, while commanded "ON" by the PCM.

DIAGNOSTIC AIDS
Snapshot mode will record 5 data parameters per second.