CAN COMMUNICATION SYSTEM > Center Airbag Sensor Communication Stop Mode |
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DESCRIPTION
Detection Item | Symptom | Trouble Area |
Center Airbag Sensor Communication Stop Mode |
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WIRING DIAGRAM
INSPECTION PROCEDURE
- NOTICE:
- Turn the ignition switch off before measuring the resistance between main CAN bus wires and CAN Bus branch wires.
- After the ignition switch is turned off, check that the key reminder warning system and light reminder warning system are not operating.
- Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the ignition switch, any other switches or the doors. If any doors need to be opened in order to check the connectors, open the doors and leave them open.
- HINT:
- Operating the ignition switch, any other switches, or a door triggers related ECU and sensor communication on the CAN. This communication will cause the resistance value to change.
- Even after DTCs are cleared, if a DTC is stored again after driving the vehicle for a while, the malfunction may be occurring due to vibration of the vehicle. In such a case, wiggling the ECUs or wire harness while performing the inspection below may help determine the cause of the malfunction.
1.CHECK FOR OPEN IN CAN BUS WIRE (CENTER AIRBAG SENSOR BRANCH WIRE) |
Turn the ignition switch off.
Disconnect the center airbag sensor assembly connector.
Text in Illustration *a Front view of wire harness connector
(to Center Airbag Sensor Assembly)
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Switch Condition Specified Condition E14-13 (CANH) - E14-22 (CANL) Ignition switch off 54 to 69 Ω
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OK | |
2.CHECK HARNESS AND CONNECTOR (IG2, E1, E2) |
Disconnect the center airbag sensor assembly connector.
Text in Illustration *a Front view of wire harness connector
(to Center Airbag Sensor Assembly)
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition E14-25 (E1) - Body ground Always Below 1 Ω E14-26 (E2) - Body ground Always Below 1 Ω
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Switch Condition Specified Condition E14-21 (IG2) - Body ground Ignition switch ON 10 to 14 V
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OK | ||
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