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:
How to proceed with troubleshooting
Hint:
troubleshooting of the wireless door lock control system is based on
the premise that the power door
lock system is operating normally. Therefore, before troubleshooting the
wireless door lock control system,
first make certain that the the power door lock system is operating
...
Circuit description
Monitor description
The ecm commands gearshift by turning the shift solenoid valves ”on/off”.
When there is an open or short
circuit in any shift solenoid valve circuit, the ecm detects the problem and the
mil comes on. Illuminating
the mil, the ecm performs the fail–safe and turns ...
Replacement
1. Drain engine oil
remove the oil pan drain plug and drain the engine oil.
2. Removal & installation chain sub–assy
3. Remove chain vibration damper no.1
remove 2 bolts and chain vibration damper no. 1.
4. Remove oil pump assy
Remove the 5 bolts.
rem ...