Toyota Corolla Repair Manual: Inspection procedure
Hint
:
- this dtc chart is on the premise that the engine is cranked normally.
If the engine is not cranked, proceed
to the problem symptoms table on page 05–42.
- Read freeze frame data using the hand-held tester or the obd ii scan
tool. Freeze frame data records
the engine conditions when a malfunction is detected. When troubleshooting,
it is useful for determining
whether the vehicle was running or stopped, the engine was warmed up or not,
the air–fuel ratio
was lean or rich, etc. At the time of the malfunction.
Hand–held tester
1 Read value of hand–held tester(starter signal)
- Connect the hand–held tester or obd ii scan tool to the dlc3.
- turn the ignition switch on and push the hand–held tester main
switch on.
- select the item ”diagnosis / enhanced obd ii / data list / all /
starter sig” and read the
value displayed the hand–held tester.
Result:



2 Inspect park/neutral position switch or clutch start switch

- Inspect the park/neutral position switch. (A/t)
- disconnect the a2 park/neutral position switch connector.
- Check for continuity between each terminal shown
below when the shift lever is moved to each range.
Standard:


- Reconnect the park/neutral position switch connector.
- inspect the clutch start switch. (M/t)
- disconnect the c8 clutch start switch connector.
- Check for continuity between terminals when the
switch on and off.
Standard:

- Reconnect the clutch start switch connector.


3 Read value of hand–held tester(starter signal)
- Connect the hand–held tester to or obd ii scan tool the dlc3.
- turn the ignition switch on and push the hand–held tester main
switch on.
- select the item ”diagnosis / enhanced obd ii / data list / all /
starter sig” and read its
value displayed the hand–held tester.
Result:



4 Inspect ignition or starter switch assy

- Check for continuity between the connector terminals
shown in the chart below



5 Read value of hand–held tester(starter signal)
- Connect the hand–held tester or obd ii scan tool to the dlc3.
- turn the ignition switch on and push the hand–held tester main
switch on.
- select the item ”diagnosis / enhanced obd ii / data list / all /
starter sig” and read its
value displayed the hand–held tester.
Result:



Repair or replace harness and connector
Obd ii scan tool (excluding hand–held tester):
1 Inspect ecm

- Turn the ignition switch on.
- measure the voltage between the terminals of the e4
ecm connector.
Standard:

- Measure the voltage between the terminals of the e4
ecm connector when the engine is cranked.
- Standard:



2 Inspect park/neutral position switch or clutch start switch

- Inspect the park/neutral position switch. (A/t)
- disconnect the a2 park/neutral position switch connector.
- Check for continuity between each terminal shown
below when the shift lever is moved to each range.
Standard:

- Reconnect the park/neutral position switch connector.
- inspect the clutch start switch. (M/t)
- disconnect the c8 clutch start switch connector.
- Check for continuity between terminals when the
switch on and off.
Standard:


- Reconnect the clutch start switch connector.


3 Inspect ecm

- Turn the ignition switch on.
- measure the voltage between the terminals of the e4
ecm connector.
Standard:

- Measure the voltage between the terminals of the e4
ecm connector when the engine is cranked.
Standard:



4 Inspect ignition or starter switch assy

- Disconnect the i10 ignition switch connector.
- check for continuity between the connector terminals
shown in the chart below.

- Reconnect the ignition switch connector.


5 Inspect ecm

- Turn the ignition switch on.
- measure the voltage between the terminals of the e4
ecm connector.
Standard:

- Measure the voltage between the terminals of the e4
ecm connector when the engine is cranked.
Standard:



Repair or replace harness or connector
While the engine is being cranked, the battery positive voltage is applied to
terminal sta of the ecm.
If the ecm detects the starter control signal (sta) while the vehicle is
driving, it will ...
Other materials:
Rear suspension
Service data
Torque specification
Tire&wheel
Service data
Drive shaft / propeller shaft / axle
Service data
Torque specification
...
Overview
Switches in the vehicle
The light switch element is located next to the
steering wheel.
Front fog lights.
Night Vision.
Lights off.
Daytime running lights.
Parking lights.
Automatic headlight control.
Adaptive light functions.
Low beams.
Instrument lighting.
Right roadside parking light.
...
Wiring diagram
1 Inspect terminal voltage(pi)
(a) turn
Turn the ignition switch to on.
measure voltage between terminal 5 (pi) of cruise control
ecu assy and body ground, when the cruise control main
switch button is on and off.
Ok:
2 Inspect combination meter assy
3 Check harn ...