Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Electronic controlled automatic transaxle
Toyota Corolla (E120): Electronic controlled automatic transaxle
Precaution
Notice
: perform the reset memory (at initialization) when replacing the automatic transaxle assy, engine assy or ecm .
Hint
: initialization can not be completed by only removing the battery.
- How to proceed with troubleshooting
- Customer problem analysis check
- Diagnosis system
- Dtc check/clear
- Check mode procedure
- Road test
- Mechanical system tests
- Hydraulic test
- Manual shifting test
- Terminals of ecm
- Data list/active test
- Definition of terms
- Part and system name list
- List of disable a moniter
- Initialization
- Diagnostic trouble code chart
- Problem symptoms table
- Park/neutral switch input circuit
- Brake switch ”b” circuit high
- Torque converter clutch solenoid performance (shift solenoid valve sl)
- Shift solenoid ”a” performance (shift solenoid valve s1)
- Inspection procedure
- Shift solenoid ”b” performance (shift solenoid valve s2)
- Shift solenoid ”a” control circuit low/high
- Shift solenoid ”b” control circuit low/high
- Pressure control solenoid ”d” electrical (shift solenoid slt)
- Torque converter clutch solenoid circuit low/high
- O/d main switch circuit
- O/d cancel signal circuit
Other materials:
Emission inspection and maintenance (I/M) programs
Some states have vehicle
emission inspection programs
which include OBD
(On Board Diagnostics)
checks. The OBD system
monitors the operation of
the emission control system.
If the malfunction indicator
lamp comes on
The OBD system determines
that a problem exists somewhere
in the emission control
sy ...
Inspection procedure
1 Check relay (marking: starter cut)
Inspect the relay continuity, as shown in the illustration
and table.
Standard:
2 Check tvip ecu
Disconnect the tvip ecu connector.
turn the ignition switch position to the start.
measure the voltage between the termina ...
Inspection procedure
1 Inspect dlc3 terminal voltage
Turn the ignition switch to on.
measure voltage between terminals 13 (tc) and 4 (cg) of
dlc3.
Ok:
voltage: 10 – 16 v
2 Check harness and connector(between cruise control ecu assy
and dlc3)
Check for open and short circuit in harness ...