B1613
SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: B1612/83, B1613/83: Lost Communication with Front Airbag Sensor RH
B1613/83 - Front Airbag Sensor RH Initialization Incomplete
DESCRIPTION
The front airbag sensor RH circuit consists of the airbag sensor assembly and front airbag sensor RH.
The front airbag sensor RH detects impacts to the vehicle and sends signals to the airbag sensor assembly to determine if the airbag should be deployed.
These DTCs are stored when a malfunction is detected in the front airbag sensor RH circuit.
WIRING DIAGRAM
INSPECTION PROCEDURE
NOTICE:
After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work Service Precautions.
PROCEDURE
1. CHECK CONNECTORS
(a) Turn the power switch off.
(b) Disconnect the cable from the negative (-) auxiliary battery terminal.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.
(c) Check that the connectors are properly connected to the airbag sensor assembly and front airbag sensor RH. Also check that the connectors that link the engine room main wire and instrument panel wire are properly connected.
OK:
The connectors are properly connected.
HINT
If the connectors are not connected securely, reconnect the connectors and proceed to the next inspection.
(d) Disconnect the connectors from the airbag sensor assembly and front airbag sensor RH. Also disconnect the connectors that link the engine room main wire and instrument panel wire.
(e) Check that the terminals of the connectors are not damaged.
OK:
The terminals are not deformed or damaged.
NG -- REPLACE WIRE HARNESS
OK -- Continue to next step.
2. CHECK FRONT AIRBAG SENSOR RH CIRCUIT (OPEN)
(a) Connect the connectors that link the engine room main wire and instrument panel wire.
(b) Using SST, connect terminals 29 (+SR) and 27 (-SR) of connector B.
NOTICE:
Do not forcibly insert SST into the terminals of the connector when connecting.
SST : 09843-18040
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- CHECK INSTRUMENT PANEL WIRE (OPEN)
OK -- Continue to next step.
3. CHECK FRONT AIRBAG SENSOR RH CIRCUIT (SHORT)
(a) Disconnect SST from connector B.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- CHECK INSTRUMENT PANEL WIRE (SHORT)
OK -- Continue to next step.
4. CHECK FRONT AIRBAG SENSOR RH CIRCUIT (SHORT TO B+)
(a) Connect the cable to the negative (-) auxiliary battery terminal.
(b) Turn the power switch on (IG).
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Text in Illustration
NG -- CHECK INSTRUMENT PANEL WIRE (SHORT TO B+)
OK -- Continue to next step.
5. CHECK FRONT AIRBAG SENSOR RH CIRCUIT (SHORT TO GROUND)
(a) Turn the power switch off.
(b) Disconnect the cable from the negative (-) auxiliary battery terminal.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- CHECK INSTRUMENT PANEL WIRE (SHORT TO GROUND)
OK -- Continue to next step.
6. CHECK FRONT AIRBAG SENSOR RH
(a) Connect the connector to the airbag sensor assembly.
(b) Interchange the front airbag sensor RH with LH and connect the connectors.
(c) Connect the cable to the negative (-) auxiliary battery terminal.
(d) Turn the power switch on (IG), and wait for at least 60 seconds.
(e) Clear the DTCs stored in memory Reading and Clearing Diagnostic Trouble Codes.
(f) Turn the power switch off.
(g) Turn the power switch on (IG), and wait for at least 60 seconds.
(h) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.
Result:
Text in Illustration
HINT
Codes other than DTCs B1612/83, B1613/83, B1617/84 and B1618/84 may be output at this time, but they are not related to this check.
B -- REPLACE FRONT AIRBAG SENSOR RH Removal
C -- REPLACE AIRBAG SENSOR ASSEMBLY Removal
A -- USE SIMULATION METHOD TO CHECK How To Proceed With Troubleshooting
7. CHECK INSTRUMENT PANEL WIRE (OPEN)
(a) Disconnect the instrument panel wire connector from the engine room main wire.
HINT
SST has already been inserted into connector B.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPLACE INSTRUMENT PANEL WIRE
OK -- REPLACE ENGINE ROOM MAIN WIRE
8. CHECK INSTRUMENT PANEL WIRE (SHORT)
(a) Disconnect the instrument panel wire connector from the engine room main wire.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPLACE INSTRUMENT PANEL WIRE
OK -- REPLACE ENGINE ROOM MAIN WIRE
9. CHECK INSTRUMENT PANEL WIRE (SHORT TO B+)
(a) Turn the power switch off.
(b) Disconnect the cable from the negative (-) auxiliary battery terminal.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.
(c) Disconnect the instrument panel wire connector from the engine room main wire.
(d) Connect the cable to the negative (-) auxiliary battery terminal.
(e) Turn the power switch on (IG).
(f) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Text in Illustration
NG -- REPLACE INSTRUMENT PANEL WIRE
OK -- REPLACE ENGINE ROOM MAIN WIRE
10. CHECK INSTRUMENT PANEL WIRE (SHORT TO GROUND)
(a) Disconnect the instrument panel wire connector from the engine room main wire.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPLACE INSTRUMENT PANEL WIRE
OK -- REPLACE ENGINE ROOM MAIN WIRE