Toyota Corolla Repair Manual: Inspection procedure
1 Check front airbag sensor (rh) circuit (to b+)(airbag sensor assy center – airbag front rh sensor)
- Disconnect the negative (–) terminal cable from the battery, and wait at least for 90 seconds.
- disconnect the connectors between the airbag front rh sensor and the airbag sensor assy center.
- connect the negative (–) terminal cable to the battery, and wait at least for 2 seconds.
- turn the ignition switch to on.
- for the connector (on the airbag sensor assy center side)
between the airbag front rh sensor and the airbag sensor
assy center, measure the voltage between body
ground and each of +sr and –sr.
Ok: voltage: below 1 v
2 Check front airbag sensor (rh) circuit (to ground)(airbag sensor assy – airbag front rh sensor)
- Turn the ignition switch to lock.
- disconnect the negative (–) terminal cable from the battery, and wait at least for 90 seconds.
- for the connector (on the airbag sensor assy center side)
between the airbag front rh sensor and the airbag sensor
assy center, measure the resistance between body
ground and each of +sr and –sr.
Ok: resistance: 1 mΩ or higher
3 Check front airbag sensor (rh) circuit(open)(airbag sensor assy center – airbag front rh sensor)
Sst 09843–18040
- Using a service wire, connect +sr and –sr of the connector (on the airbag front rh sensor side) between the airbag front rh sensor and the airbag sensor assy center.
- for the connector (on the airbag sensor assy center side)
between the airbag front rh sensor and the airbag sensor
assy center, measure the resistance between +sr
and –sr.
Ok: resistance: below 1 Ω
4 Inspect air bag front rh sensor
- For the connector of the airbag front rh sensor, measure
the resistance between +sr and –sr.
Ok: resistance: 820 Ω
5 Check air bag sensor assy center
Sst 09843–18040
- Disconnect the negative (–) terminal cable from the battery, and wait at least for 90 seconds.
- connect the airbag front rh sensor connector and airbag sensor assy center connector.
- connect the negative (–) terminal cable to the battery, and wait at least for 2 seconds.
- turn the ignition switch to on, and wait at least for 20 seconds.
- clear the dtc stored in memory .
- turn the ignition switch to lock, and wait at least for 20 seconds.
- turn the ignition switch to on, and wait at least for 20 seconds.
- check the dtc .
Ok: dtc b1156/b1157/15 is not output.
Hint
: codes other than code b1156/b1157/15 may be output at this time, but they are not relevant to this check.
Use simulation method to check
6 Check engine room main wire harness (to b+)(connector – airbag front rh sensor)
- Turn the ignition switch to lock.
- disconnect the negative (–) terminal cable from the battery, and wait at least for 90 seconds.
- disconnect the connector between the engine room main wire and the instrument panel wire.
- connect the negative (–) terminal cable to the battery, and wait at least for 2 seconds.
- turn the ignition switch to on.
- for the engine room main wire connector (on the airbag
sensor assy center side) between the airbag sensor assy
center and the airbag front rh sensor, measure the voltage
between body ground and each of +sr and –sr.
Ok: voltage: below 1 v
Repair or replace instrument panel wire
7 Check engine room main wire harness (to ground)(connector – airbag front rh sensor)
- Disconnect the connectors between the engine room main wire and the instrument panel wire.
- for the engine room main wire connector (on the airbag
sensor assy center side) between the airbag sensor assy
center and the airbag front rh sensor, measure the resistance
between body ground and each of +sr and –sr.
Ok: resistance: 1 mΩ or higher
Repair or replace instrument panel wire
8 Check engine room main wire harness(open)(connector – airbag front rh sensor)
Sst 09843–18040
- Disconnect the connectors between the engine room main wire and the instrument panel wire.
- using a service wire, connect +sr and –sr of the engine room main wire connector (on the airbag front rh sensor side) between the airbag sensor assy center and the airbag front rh sensor.
- for the engine room main wire connector (on the airbag
sensor assy center side) between the airbag sensor assy
center and the airbag front rh sensor, measure the resistance
between the +sr and –sr.
Ok: resistance: below 1 Ω
Repair or replace instrument panel wire
Circuit description
The airbag front rh sensor circuit consists of the airbag sensor assy center
and airbag front rh sensor.
Dtc b1156/b1157/15 is recorded when a malfunction is detected in the airbag
front rh sen ...
Front airbag sensor (lh)
malfunction
Dtc b1158/16 front airbag sensor (lh)
malfunction
Dtc b1159/16 front airbag sensor (lh)
malfunction ...
Other materials:
Screen for general settings
1 Press the “SETUP” button.
2 Select “General” on the “Setup” screen.
1 “English”, “Français” or “Español” can be selected.
2 On/off can be selected to sound beeps.
3 Select to change the screen color.
4 Select to change the keyboard layout.
5 The animation effect for the screen ...
Engine assembly
Inspection
1. Inspect coolant
2. Inspect engine oil
3. Inspect battery
4. Inspect air cleaner filter element sub–assy
5. Inspect spark plug
6. Inspect fan and generator v belt
Hint:
you don’t need to check the belt deflection because auto tensioner is adopted.
7. Inspect ignition timing ...
Radiator assy
Replacement
1. Drain coolant
2. Separate radiator hose inlet
3. Separate radiator hose outlet
4. Separate oil cooler inlet tube no.1
5. Separate oil cooler outlet tube no.1
6. Remove radiator assy
disconnect the fan motor connector.
disconnect two clamps for wire–harness from ...