Chart C8-2, TCC Check (Cont.)
NOTE:
The following step numbers refer to the numbers in the accompanying flow chart(s).
- Checks for ground in circuit to ECM terminal "D". Normally light should be off.
- Checks for ignition voltage to terminal "A" of the transmission connector. Light should normally be on.
- Checks for complete circuit from ignition to ground through the TCC test terminal. Normally, the light should go on if the harness is good.
- On THM 125-C, a normally open 2nd gear apply switch is used in series in ignition feed circuits to TCC solenoid. Switch is closed on 2nd gear apply by hydraulic pressure. If this step is completed but no problem found, check continuity through 2nd gear switch with transmission operating in 2nd gear.