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:
Pressing power switch does not start system
Wiring diagram
Inspection procedure
1 Inspect radio receiver assy(+b, acc, gnd)
Check that the continuity between terminals at each
condition, as shown in the chart.
Standard:
Check that the voltage between terminals at each condition,
as shown in the chart.
Standard:
...
Inspection
1. Cooler thermistor no.1
Check resistance between terminals 1 and 2 of cooler
thermistor no. 1 At each temperature, as shown in the
chart.
Resistance:
If resistance value is not as specified, replace the sensor.
2. Cooler and accessory assy
Inspect blower switch contin ...
Inspection procedure
1 Check operation(starter)
Check that the starter operates normally and that the engine starts.
2 Input signal check
See input signal check on page 05–745.
check the indicator light when shifting into except d position.
Ok:
the indicator light goes off when shifting ...