No Lock-Up Occurs
System Description
TCM turns TCC solenoid OFF under any of the following conditions.
Brake light switch is turned ON. (Brake pedal is depressed)
Engine coolant temperature is less than 60 °C (140 °F).
Throttle opening is as much as 0%.
TCM detects the following DTCs.
When performing a road test, select a place where there is no traffic or possibility of a traffic accident and be very careful during testing to avoid occurrence of an accident.
Road test should be carried out with 2 persons, a driver and tester, on a level road.
The terminal number outside ( ) shows M13 engine model with VVT.
The terminal number in ( ) shows M13 engine model without VVT.
Step Action YES NO
Was A/T System Check performed?
Go to Step 2.
Check DTC.
Is DTC P0705, P0707, P0712, P0713, P0717, P0722, P0727, P0787, P0788, P0962, P0963, P0973, P0974, P0976, P0977, P1702, P1703, P1724, P1725, P1774, P1777, P2769 and/or P2770 detected?
Perform DTC flow table to repair and retry.
Go to Step 3.
Perform running test under the following conditions and measure voltage between terminal “E121-5” (or “E121-12”) of TCM connector and ground.
Engine coolant temperature is in normal operating temperature.
Select lever is in “D” range.
Brake pedal is released.
Drive vehicle with 4th gear and TCC ON condition referring to Automatic Gear Shift Table .
Is terminal voltage about 9 – 14 V?
Faulty TCC solenoid valve, circuit or transmission.
“BLK/YEL” circuit shorted to ground.
If wire is OK, go to Step 4.
Brake light switch signal inspection.
With ignition switch ON, check voltage between terminal “E118-9” of ECM connector (or “E124-13” of TCM connector) and ground.
Brake light switch specification
Brake pedal is released: 0 – 1 V
Brake pedal is depressed: 8 – 14 V
Is result as specified?
Substitute a known-good TCM and recheck.
Mis-adjusted brake light switch, faulty brake light switch or its circuit.
If OK, substitute a known-good TCM and recheck.