Toyota Corolla (E120): 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 the other shift solenoid valves in good condition ”on/off” (in case of an open or short circuit, the ecm stops sending current to the circuit.).
Monitor strategy
Typical enabling condition
Typical malfunction thresholds
Component operating range
Wiring diagram
Other materials:
SRS airbags
The SRS airbags inflate when the vehicle is subjected to certain types of
severe impacts that may cause significant injury to the occupants. They work together
with the seat belts to help reduce the risk of death or serious injury.
◆ SRS front airbags
1 SRS driver airbag/front passenge ...
Replacement
1. Work for preventing gasoline from spilling out
2. Remove front wheels
3. Remove engine under cover rh
4. Remove engine under cover lh
5. Drain coolant
6. Remove cylinder head cover no.2
Remove the 2 nuts, 2 clips and cylinder head cover.
7. Disconnect radiator hose inlet
&nb ...
Symptom simulation
Hint:
the most difficult case in troubleshooting is when no symptoms occurs. In such
cases, a thorough customer
problem analysis must be carried out. Then the same or similar conditions and
environment in which the
problem occurred in the customer’s vehicle should be simulated. No matter ho ...