Toyota Corolla (E120): Circuit description
The p squib (2nd step) circuit consists of the airbag sensor assy center and instrument panel passenger airbag assy.
It causes the srs to deploy when the srs deployment conditions are satisfied.
Dtc b1188/56 is recorded when a b+ short is detected in the p squib (2nd step) circuit.
Wiring diagram
Other materials:
Terminals of ecu
Oscilloscope wave (*1)
Hint:
terminal: od – gnd
gauge set: 5 v / div, 50 ms / div
condition: during cruise control driving o/d switch on.
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Inspection procedure
1 Check operation(stop lamp swtich assy)
Check that the stop light comes on when the brake pedal is depressed,
and turns off when the brake
pedal is released.
2 Input signal check
See input signal check on page 05–745.
check the indicator light when the brake pedal ...
Circuit description
When the idle switch is turned on, a signal is sent to the cruise control ecu
assy. The cruise control ecu
assy uses this signal to correct the discrepancy between the throttle valve
position and the actuator position
sensor values to enable accurate cruise control at the set speed. If the idl ...