Inspection Procedure
- CHECK PASSENGER AIRBAG ON/OFF INDICATOR OPERATION
- Turn the ignition switch ON.
- Check the passenger airbag ON / OFF indicator operation.
Result
RESULTON / OFF Indicator Illumination Proceed to Always ON A OFF B
B: Go to step 8
A: Go to next step
- CHECK CONNECTION OF CONNECTOR
- Turn the ignition switch OFF.
- Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
- Check that the connectors are properly connected to the center airbag sensor and the front passenger seat belt warning light.
OK:
The connectors are properly connected.
NG: CONNECT CONNECTOR
OK: Go to next step
- CHECK FRONT PASSENGER AIRBAG ON/OFF INDICATOR LIGHT
- Turn the ignition switch OFF.
- Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
- Disconnect the connector from the center airbag sensor.
- Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
- Turn the ignition switch ON.
- Check the passenger airbag ON / OFF indicator operation.
OK:
Neither ON nor OFF passenger airbag ON / OFF indicator comes on.
OK: Go to step 14
NG: Go to next step
- CHECK INSTRUMENT PANEL WIRE (FOR OPEN)
- Turn the ignition switch OFF.
- Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
- Disconnect the connector from the front passenger airbag ON / OFF indicator light.
- Using a service wire, connect E45-23 (PAON) and E45-17 (P-AB) of connector B.NOTE: Do not forcibly insert the service wire into the terminals of the connector when connecting.
- Measure the resistance of the wire harness side connectors.
Standard resistance
TESTER CONNECTION SPECIFIED CONDITIONTester Connection Specified Condition E23-6 (PAON) - E23-13 (P-AB)*1 Below 1 Ω E22-4 (PAON) - E22-9 (P-AB)*2 Below 1 Ω HINT:
*1: for Automatic Air Conditioning System
*2: for Manual Air Conditioning System
NG: REPAIR OR REPLACE INSTRUMENT PANEL WIRE
OK: Go to next step
- CHECK INSTRUMENT PANEL WIRE (FOR SHORT)
- Disconnect the service wire from connector B.
- Measure the resistance of the wire harness side connectors.
Standard resistance
TESTER CONNECTION SPECIFIED CONDITIONTester Connection Specified Condition E45-17 (P-AB) - E45-23 (PAON) 1 MΩ or higher
NG: REPAIR OR REPLACE INSTRUMENT PANEL WIRE
OK: Go to next step
- CHECK INSTRUMENT PANEL WIRE (TO B+)
- Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
- Turn the ignition switch ON.
- Measure the voltage of the wire harness side connectors.
Standard voltage
TESTER CONNECTION SPECIFIED CONDITIONTester Connection Specified Condition E45-23 (PAON) - Body ground Below 1 V E45-17 (P-AB) - Body ground Below 1 V
NG: REPAIR OR REPLACE INSTRUMENT PANEL WIRE
OK: Go to next step
- CHECK INSTRUMENT PANEL WIRE (TO GROUND)
- Turn the ignition switch OFF.
- Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
- Measure the resistance of the wire harness side connectors.
Standard resistance
TESTER CONNECTION SPECIFIED CONDITIONTester Connection Specified Condition E45-17 (P-AB) -Body ground 1 MΩ or higher E45-23 (PAON) -Body ground 1 MΩ or higher
NG: REPAIR OR REPLACE INSTRUMENT PANEL WIRE
OK: REPLACE FRONT PASSENGER AIRBAG ON/OFF INDICATOR LIGHT
- CHECK CONNECTION OF CONNECTOR
- Turn the ignition switch OFF.
- Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
- Check that the connectors are properly connected to the center airbag sensor and the heater control panel*1 or clock*2.
OK:
The connectors are properly connected.
HINT:
*1: for Automatic Air Conditioning System
*2: for Manual Air Conditioning System
NG: CONNECT CONNECTOR
OK: Go to next step
- CHECK INSTRUMENT PANEL WIRE (FOR OPEN)
- Disconnect the connector from the front passenger airbag ON / OFF indicator light
- Using a service wire, connect E45-23 (PAON) and E45-17 (P-AB) of connector B.NOTE: Do not forcibly insert the service wire into the terminals of the connector when connecting.
- Measure the resistance of the wire harness side connectors.
Standard resistance
TESTER CONNECTION SPECIFIED CONDITIONTester Connection Specified Condition E23-6 (PAON) - E23-13 (P-AB)*1 Below 1 Ω E22-4 (PAON) - E22-9 (P-AB)*2 Below 1 Ω HINT:
*1: for Automatic Air Conditioning System
*2: for Manual Air Conditioning System
NG: REPAIR OR REPLACE INSTRUMENT PANEL WIRE
OK: Go to next step
- CHECK INSTRUMENT PANEL WIRE (FOR SHORT)
- Disconnect the service wire from connector B.
- Measure the resistance of the wire harness side connector.
Standard resistance
TESTER CONNECTION SPECIFIED CONDITIONTester Connection Specified Condition E45-17 (P-AB) - E45-23 (PAON) 1 MΩ or higher
NG: REPAIR OR REPLACE INSTRUMENT PANEL WIRE
OK: Go to next step
- CHECK INSTRUMENT PANEL WIRE (TO B+)
- Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
- Turn the ignition switch ON.
- Measure the voltage of the wire harness side connector.
Standard voltage
TESTER CONNECTION SPECIFIED CONDITIONTester Connection Specified Condition E45-23 (PAON) - Body ground Below 1 V E45-17 (P-AB) - Body ground Below 1 V
NG: REPAIR OR REPLACE INSTRUMENT PANEL WIRE
OK: Go to next step
- CHECK INSTRUMENT PANEL WIRE (TO GROUND)
- Turn the ignition switch OFF.
- Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
- Measure the resistance of the wire harness side connector.
Standard resistance
TESTER CONNECTION SPECIFIED CONDITIONTester Connection Specified Condition E45-17 (P-AB) - Body ground 1 MΩ or higher E45-23 (PAON) - Body ground 1 MΩ or higher
NG: REPAIR OR REPLACE INSTRUMENT PANEL WIRE
OK: Go to next step
- CHECK WIRE HARNESS (POWER SOURCE)
- Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
- Turn the ignition switch ON.
- Measure the voltage of the wire harness side connector.
Standard voltage
TESTER CONNECTION SPECIFIED CONDITIONTester Connection Specified Condition E23-2 (IG+) - Body ground*1 10 to 14 V E22-2 (IG+) - Body ground*2 10 to 14 V HINT:
*1: for Automatic Air Conditioning System
*2: for Manual Air Conditioning System
NG: REPAIR OR REPLACE POWER SOURCE CIRCUIT
OK: Go to next step
- CHECK FRONT PASSENGER AIRBAG ON/OFF INDICATOR LIGHT
- Turn the ignition switch OFF.
- Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
- Disconnect the connector from the heater control panel*1 or clock*2.
- Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
- Using a service wire, connect E23-6*1 E22-4*2 (PAON) and E23-7*1 (GND) E22-5*2 (E) of the heater control panel *1 or clock*2.
HINT:
*1: for Automatic Air Conditioning System
*2: for Manual Air Conditioning System
- Using a service wire, connect E23-13*1 E22-9*2 (P-AB) and E23-7 *1 (GND) E22-5*2 (E) of the heater control panel *1 or clock*2.
HINT:
*1: for Automatic Air Conditioning System
*2: for Manual Air Conditioning System
- Turn the ignition switch ON.
- Check the passenger airbag ON / OFF indicator operation.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
OK: Front passenger airbag ON / OFF indicator comes on
NG: REPLACE FRONT PASSENGER AIRBAG ON/OFF INDICATOR LIGHT
OK: Go to next step
- CHECK CENTER AIRBAG SENSOR ASSEMBLY
- Turn the ignition switch OFF.
- Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
- Connect the connector to the center airbag sensor.
- Connect the connector to the heater control panel*1 or clock*2.
HINT:
*1: for Automatic Air Conditioning System
*2: for Manual Air Conditioning System
- Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
- Turn the ignition switch ON, and wait for at least 60 seconds.
- Clear the DTCs (see DTC CHECK / CLEAR ).
- Turn the ignition switch OFF.
- Turn the ignition switch ON, and wait for at least 60 seconds.
- Check for DTCs (see DTC CHECK / CLEAR
).
OK:
DTC B1660/43 is not output.
HINT:
DTCs other than B1660/43 may be output at this time, but they are not related to this check.
NG: REPLACE CENTER AIRBAG SENSOR ASSEMBLY
OK: USE SIMULATION METHOD TO CHECK