Toyota Corolla (E120): Adjustment
1. Inspect park/neutral position switch assy
- apply the parking brake and turn the ignition switch on.
- depress the brake pedal and check that the engine starts only when the shift lever is set in n or p position and it does not start in the other position.
- check that the back–up light comes on and the reverse warning
buzzer sounds only when the shift
lever is set in r position and these do not function in the other positions.
If a failure is found, check the park/ neutral position switch for continuity.
2. Adjust park/neutral position switch assy

- Loosen the 2 bolts of park/ neutral position switch and set the shift lever to the n position.
- align the groove and neutral basic line.
- hold the switch in position and tighten the 2 bolts.
Torque: 5.5 Nvm (56 Kgf·cm, 49 in.Vlbf)
- after adjustment, perform the inspection described in step 1.
Other materials:
Circuit description
The seat position sensor circuit consists of the airbag sensor assy center
and seat position sensor.
Dtc b1153/25 is recorded when a malfunction is detected in the seat position
sensor circuit.
Wiring diagram
...
Problem symptoms table
The suspected circuits or parts for each problem symptom are shown in the
table below. Use this table to
troubleshoot the problem when a normal code is displayed in the diagnostic
trouble code chart but the problem
is still occurring. Numbers in the table indicate the order in which the
circ ...
Purpose of the readiness tests
The on–board diagnostic (obd ii) system is designed to monitor the
performance of emission–related
components and report any detected abnormalities in the form of diagnostic
trouble codes
(dtcs). Since the various components need to be monitored during different
driving condition ...


