Toyota Corolla Repair Manual: On–vehicle inspection

Toyota Corolla Repair Manual / Ignition / On–vehicle inspection

Notice

: ”cold” and ”hot” in these sentences express the temperature of the coils themselves. ”Cold” is from –10 c (14 f) to 50 c (122 f) and ”hot” is from 50 c (122 f) to 100 c (212 f).

1. Inspect ignition coil (with igniter) and spark test

confirm dtc.

Notice
: if dtc is indicated, carry out troubleshooting in accordance with the procedure on the following dtc.
check that the spark occurs.

Remove the ignition coils (with igniter).
Using a 16 mm (0.63 In) plug wrench, remove the spark plugs.
Install the spark plugs to each ignition coils (with igniter), and connect the ignition coil connectors.
Disconnect the 4 injector connectors.
Ground the spark plugs.
Check if spark occurs while engine is being cranked.

Notice

be sure to ground the spark plug, when checking.
Replace the ignition coil when it is given an impact.
Do not crank the engine for more than 2 seconds.

Hint

: if the spark does not occur, do the test as follow.

using a 16 mm (0.63 In.) Plug wrench, install the spark plugs.
Torque: 25 nvm (255 Kgf·cm, 18 ft·lbf)
install the ignition coil with igniter.
Torque: 9.0 Nvm (92 Kgf·cm, 80 in.Vlbf)

Inspection

1. Spark plug Notice: never use a wire brush for cleaning. Never attempt to adjust the electrode gap on used spark plug. Spark plug should be replaced every 192,000 km (120,000 miles). ...

Other materials:

System description
The ecm uses the signals from the throttle position sensor, air–flow meter and crankshaft position sensor to monitor the engagement condition of the lock–up clutch. Then the ecm compares the engagement condition of the lock–up clutch with the lock–up schedule in the ecm memory to detect mec ...

Diagnosis system
Description when troubleshooting obd ii vehicles, the only difference from the usual troubleshooting procedure is that you need to connect an obd ii scan tool complying with sae j1987 or a hand–held tester to the vehicle, and read off various data output from the vehicle’s e ...

Driving monitor
■ Switching the display Items displayed can be switched by pressing the “DISP” switch. ■ Average fuel consumption Displays the average fuel consumption since the function was reset. • Press and hold the “DISP” switch to reset when the average fuel consumption is displayed. • Use ...