Passenger Airbag ON/OFF Indicator Circuit Malfunction - Airbag System
SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: B1660/43: Passenger Airbag ON/OFF Indicator Circuit Malfunction
DTC B1660/43 - Passenger Airbag ON/OFF Indicator Circuit Malfunction
DESCRIPTION
The passenger airbag ON/OFF indicator circuit consists of the center airbag sensor assembly and the passenger airbag ON/OFF indicator.
The passenger airbag ON/OFF indicator indicates the operation condition of the front passenger airbag assembly, front passenger side knee airbag assembly, front seat side airbag assembly RH and front seat outer belt assembly RH.
DTC B1660/43 is recorded when a malfunction is detected in the passenger airbag ON/OFF indicator circuit.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1. CHECK PASSENGER AIRBAG ON/OFF INDICATOR CONDITION
(a) Turn the ignition switch on (IG).
(b) Check the passenger airbag ON/OFF indicator operation.
HINT: Refer to the normal condition of the passenger airbag ON/OFF indicator Diagnosis System.
Result:
B -- CHECK CONNECTORS
A -- Continue to next step.
2. CHECK CONNECTORS
(a) Turn the ignition switch off.
(b) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
(c) w/ Navigation system:
(1) Check that the connectors are properly connected to the center airbag sensor assembly and the multi-display computer assembly. Also check that the connectors that link the instrument panel wire No. 2 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.
(2) Disconnect the connectors from the center airbag sensor assembly and the multi-display computer assembly. Also disconnect the connectors that link the instrument panel wire No. 2 and instrument panel wire.
(3) Check that the terminals of connectors are not damaged.
OK:
The terminals are not deformed or damaged.
(d) w/o Navigation system:
(1) Check that the connectors are properly connected to the center airbag sensor assembly and the hazard switch assembly. Also check that the connectors that link the instrument panel wire No. 2 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.
(2) Disconnect the connectors from the center airbag sensor assembly and the hazard switch assembly. Also disconnect the connectors that link the instrument panel wire No. 2 and instrument panel wire.
(3) Check that the terminals of connectors are not damaged.
OK:
The terminals are not deformed or damaged.
NG -- REPLACE WIRE HARNESS
OK -- Continue to next step.
3. CHECK PASSENGER AIRBAG ON/OFF INDICATOR
(a) Connect the connectors that link the instrument panel wire No. 2 and instrument panel wire.
(b) w/ Navigation system:
Connect the connector to the multi-display computer assembly.
(c) w/o Navigation system:
Connect the connector to the hazard switch assembly.
(d) Connect the negative (-) terminal cable to the battery.
(e) Turn the ignition switch on (IG).
(f) Check the passenger airbag ON/OFF indicator operation.
OK:
The passenger airbag ON/OFF indicator does not come on.
NG -- CHECK PASSENGER AIRBAG ON/OFF INDICATOR CIRCUIT (OPEN)
OK -- Continue to next step.
4. CHECK CENTER AIRBAG SENSOR ASSEMBLY
(a) Connect the connector to the center airbag sensor assembly.
(b) Connect the negative (-) terminal cable to the battery.
(c) Turn the ignition switch on (IG), and wait for at least 60 seconds.
(d) Clear the DTCs stored in the memory DTC Check / Clear.
(e) Turn the ignition switch off.
(f) Turn the ignition switch on (IG), and wait for at least 60 seconds.
(g) Check for DTCs DTC Check / Clear.
OK:
DTC B1660/43 is not output.
HINT: Codes other than DTC 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
5. CHECK PASSENGER AIRBAG ON/OFF INDICATOR CIRCUIT (OPEN)
(a) Turn the ignition switch off.
(b) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
(c) w/ Navigation system:
Disconnect the connector from the multi-display computer assembly.
(d) w/o Navigation system:
Disconnect the connector from the hazard switch assembly.
(e) Using SST, connect terminals 23 (PAON) and 17 (P-AB) of connector B.
NOTE: Do not forcibly insert SST into the terminals of the connector when connecting the wire.
SST: 09843-18040
(f) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- CHECK INSTRUMENT PANEL WIRE (OPEN)
OK -- Continue to next step.
6. CHECK PASSENGER AIRBAG ON/OFF INDICATOR CIRCUIT (SHORT)
(a) Disconnect SST from connector B.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- CHECK INSTRUMENT PANEL WIRE (SHORT)
OK -- Continue to next step.
7. CHECK PASSENGER AIRBAG ON/OFF INDICATOR CIRCUIT (SHORT TO GROUND)
(a) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- CHECK INSTRUMENT PANEL WIRE (SHORT TO GROUND)
OK -- Continue to next step.
8. CHECK PASSENGER AIRBAG ON/OFF INDICATOR CIRCUIT (SHORT TO B+)
(a) Connect the negative (-) terminal cable to the battery.
(b) Turn the ignition switch on (IG).
(c) Measure the voltage according to the value(s) in the table below.
Standard voltage:
Result:
C -- CHECK INSTRUMENT PANEL WIRE (SHORT TO B+)
B -- REPLACE HAZARD SWITCH ASSEMBLY
A -- REPLACE MULTI-DISPLAY COMPUTER ASSEMBLY
9. CHECK CONNECTORS
(a) Turn the ignition switch off.
(b) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
(c) w/ Navigation system:
(1) Check that the connectors are properly connected to the center airbag sensor assembly and the multi-display computer assembly. Also check that the connectors that link the instrument panel wire No. 2 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.
(2) Disconnect the connectors from the center airbag sensor assembly and the multi-display computer assembly. Also disconnect the connectors that link the instrument panel wire No. 2 and instrument panel wire.
(3) Check that the terminals of connectors are not damaged.
OK:
The terminals are not deformed or damaged.
(d) w/o Navigation system:
(1) Check that the connectors are properly connected to the center airbag sensor assembly and the hazard switch assembly. Also check that the connectors that link the instrument panel wire No. 2 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.
(2) Disconnect the connectors from the center airbag sensor assembly and the hazard switch assembly. Also disconnect the connectors that link the instrument panel wire No. 2 and instrument panel wire.
(3) Check that the terminals of connectors are not damaged.
OK:
The terminals are not deformed or damaged.
NG -- REPLACE WIRE HARNESS
OK -- Continue to next step.
10. CHECK PASSENGER AIRBAG ON/OFF INDICATOR CIRCUIT (OPEN)
(a) Connect the connectors that link the instrument panel wire No. 2 and instrument panel wire.
(b) Using SST, connect terminals 23 (PAON) and 17 (P-AB) of connector B.
NOTE: Do not forcibly insert SST into the terminals of the connector when connecting the wire.
SST: 09843-18040
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- CHECK INSTRUMENT PANEL WIRE (OPEN)
OK -- Continue to next step.
11. CHECK PASSENGER AIRBAG ON/OFF INDICATOR CIRCUIT (SHORT)
(a) Disconnect SST from connector B.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- CHECK INSTRUMENT PANEL WIRE (SHORT)
OK -- Continue to next step.
12. CHECK PASSENGER AIRBAG ON/OFF INDICATOR CIRCUIT (SHORT TO GROUND)
(a) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- CHECK INSTRUMENT PANEL WIRE (SHORT TO GROUND)
OK -- Continue to next step.
13. CHECK PASSENGER AIRBAG ON/OFF INDICATOR CIRCUIT (SHORT TO B+)
(a) Connect the negative (-) terminal cable to the battery.
(b) Turn the ignition switch on (IG).
(c) Measure the voltage according to the value(s) in the table below.
Standard voltage:
NG -- CHECK INSTRUMENT PANEL WIRE (SHORT TO B+)
OK -- Continue to next step.
14. CHECK PASSENGER AIRBAG ON/OFF INDICATOR (SOURCE VOLTAGE)
(a) Turn the ignition switch on (IG).
(b) Measure the voltage according to the value(s) in the table below.
Standard voltage:
NG -- REPLACE WIRE HARNESS (PASSENGER AIRBAG ON/OFF INDICATOR - BATTERY) OR BATTERY
OK -- Continue to next step.
15. CHECK PASSENGER AIRBAG ON/OFF INDICATOR
(a) Turn the ignition switch off.
(b) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
(c) w/ Navigation system
Connect the connector to the multi-display computer assembly.
(d) w/o Navigation system
Connect the connector to the hazard switch assembly.
(e) Connect the negative (-) terminal cable to the battery.
(f) Turn the ignition switch on (IG).
(g) Check the indicator according to the conditions in the table below.
Indicator condition:
Result:
C -- REPLACE HAZARD SWITCH ASSEMBLY
B -- REPLACE MULTI-DISPLAY COMPUTER ASSEMBLY
A -- Continue to next step.
16. CHECK CENTER AIRBAG SENSOR ASSEMBLY
(a) Turn the ignition switch off.
(b) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
(c) Connect the connector to the center airbag sensor assembly.
(d) Connect the negative (-) terminal cable to the battery.
(e) Turn the ignition switch on (IG), and wait for at least 60 seconds.
(f) Clear the DTCs stored in the memory DTC Check / Clear.
(g) Turn the ignition switch off.
(h) Turn the ignition switch on (IG), and wait for at least 60 seconds.
(i) Check for DTCs DTC Check / Clear.
OK:
DTC B1660/43 is not output.
HINT: Codes other than DTC 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
17. CHECK INSTRUMENT PANEL WIRE (OPEN)
(a) Disconnect the instrument panel wire from the instrument panel wire No. 2.
HINT: SST has already been inserted into connector B.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPLACE INSTRUMENT PANEL WIRE
OK -- REPLACE INSTRUMENT PANEL WIRE NO. 2
18. CHECK INSTRUMENT PANEL WIRE (SHORT)
(a) Disconnect the instrument panel wire from the instrument panel wire No. 2.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPLACE INSTRUMENT PANEL WIRE
OK -- REPLACE INSTRUMENT PANEL WIRE NO. 2
19. CHECK INSTRUMENT PANEL WIRE (SHORT TO GROUND)
(a) Disconnect the instrument panel wire from the instrument panel wire No. 2.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPLACE INSTRUMENT PANEL WIRE
OK -- REPLACE INSTRUMENT PANEL WIRE NO. 2
20. CHECK INSTRUMENT PANEL WIRE (SHORT TO B+)
(a) Turn the ignition switch off.
(b) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
(c) Disconnect the instrument panel wire from the instrument panel wire No. 2.
(d) Connect the negative (-) terminal cable to the battery.
(e) Turn the ignition switch on (IG).
(f) Measure the voltage according to the value(s) in the table below.
Standard voltage:
NG -- REPLACE INSTRUMENT PANEL WIRE
OK -- REPLACE INSTRUMENT PANEL WIRE NO. 2