Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Cruise control system / Ecu power source circuit / Inspection procedure
Toyota Corolla (E120): Inspection procedure
1 Check fuse(ecu–ig)
- Remove the ecu–ig fuse from the instrument panel j/b.
- check the continuity of the ecu–ig fuse.
Ok: continuity
2 Inspect terminal voltage(b)
- Remove the cruise control ecu assy with connector still connected.
- turn the ignition switch to on.
- measure voltage between terminals 2 (b) and 16 (gnd)
of the cruise control ecu assy connector.
Ok: voltage: 10 – 16 v
3 Check harness and connector(between cruise control ecu assy and body ground)
- Measure resistance between terminal 16 (gnd) of the
cruise control ecu assy connector and body ground.
Ok: resistance: below 1 Ω
Check and repair harness and connector between cruise control ecu assy and battery
Other materials:
On–vehicle inspection
1. Check fuel pump operation
Connect the hand–held tester to the dlc3.
turn the ignition switch on and hand–held tester main
switch on.
Notice:
do not start the engine.
select the active test mode on the hand–held tester.
please refer to the hand–held te ...
Towing your vehicle with 4 wheels on the ground
To prevent damage to your vehicle, perform the following procedures before towing.
1 Shift the shift lever to N.
2 Turn the engine switch to the “ACC” position (without a smart key system) or
ACCESSORY mode (with a smart key system).
(, 166) Ensure that the audio system and other powered de ...
Inspection procedure
Hint:
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 ...