DESCRIPTION
The passenger airbag ON/OFF indicator circuit consists of the center airbag sensor assembly and passenger airbag ON/OFF indicator.
The passenger airbag ON/OFF indicator indicates the operation condition of the front passenger airbag and front passenger side knee airbag.
DTC B1660/43 is recorded when a malfunction is detected in the passenger airbag ON/OFF indicator circuit.
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| B1660/43 |
|
|
*1: w/ Navigation System
*2: w/o Navigation System
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
CHECK PASSENGER AIRBAG ON/OFF INDICATOR CONDITION
Turn the power switch on (IG).
Check the passenger airbag ON/OFF indicator operation.
Tech Tips
Refer to the normal condition of the passenger airbag ON/OFF indicator Click here.
| Result | ||||||
|---|---|---|---|---|---|---|
|
| B |
|
CHECK CONNECTORS Click here |
| A |
|
CHECK CONNECTORS
Turn the power switch off.
Disconnect the cable from the negative (-) battery terminal.
Note
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
Check that the connectors are properly connected to the center airbag sensor assembly and radio receiver assembly*1 or accessory meter assembly*2. Also check that the connectors that link the instrument panel wire and No. 2 instrument panel wire are properly connected.
*1: w/ Navigation System
*2: w/o Navigation System
| OK |
|---|
| The connectors are properly connected. |
Tech Tips
If the connectors are not connected securely, reconnect the connectors and proceed to the next inspection.
Disconnect the connectors from the center airbag sensor assembly and radio receiver assembly*1 or accessory meter assembly*2. Also disconnect the connectors that link the instrument panel wire and No. 2 instrument panel wire.
*1: w/ Navigation System
*2: w/o Navigation System
Check that the terminals of connectors are not damaged.
| OK |
|---|
| The terminals are not deformed or damaged. |
| NG |
|
REPLACE WIRE HARNESS |
| OK |
|
CHECK PASSENGER AIRBAG ON/OFF INDICATOR
Connect the connectors that link the instrument panel wire and No. 2 instrument panel wire.
Connect the connector to the radio receiver assembly*1 or accessory meter assembly*2.
*1: w/ Navigation System
*2: w/o Navigation System
Connect the cable to the negative (-) battery terminal.
Turn the power switch on (IG).
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) Click here |
| OK |
|
CHECK CENTER AIRBAG SENSOR ASSEMBLY
| *1 | Radio Receiver Assembly*1 or Accessory Meter Assembly*2 |
| *2 | Center Airbag Sensor Assembly |
Connect the connector to the center airbag sensor assembly.
Connect the cable to the negative (-) battery terminal.
Turn the power switch on (IG), and wait for at least 60 seconds.
Clear the DTCs stored in the memory Click here.
Turn the power switch off.
Turn the power switch on (IG), and wait for at least 60 seconds.
Check for DTCs Click here.
| OK |
|---|
| DTC B1660/43 is not output. |
*1: w/ Navigation System
*2: w/o Navigation System
Tech Tips
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 Click here |
| OK |
|
USE SIMULATION METHOD TO CHECK Click here
CHECK PASSENGER AIRBAG ON/OFF INDICATOR CIRCUIT (OPEN)
Turn the power switch off.
Disconnect the cable from the negative (-) battery terminal.
Note
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
Connect the connectors that link the instrument panel wire and No. 2 instrument panel wire.
Disconnect the connector from the radio receiver assembly*1 or accessory meter assembly*2.
*1: w/ Navigation System
*2: w/o Navigation System
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.
w/ Navigation System:
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
| *1 | Radio Receiver Assembly | *2 | Center Airbag Sensor Assembly |
| *3 | Front view of wire harness connector (to Center Airbag Sensor Assembly) |
*4 | Front view of wire harness connector (to Radio Receiver Assembly) |
| *5 | Connector B | *6 | Connector E |
w/o Navigation System:
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
| *1 | Accessory Meter Assembly | *2 | Center Airbag Sensor Assembly |
| *3 | Front view of wire harness connector (to Center Airbag Sensor Assembly) |
*4 | Front view of wire harness connector (to Accessory Meter Assembly) |
| *5 | Connector B | *6 | Connector E |
| NG |
|
CHECK INSTRUMENT PANEL WIRE (OPEN) Click here |
| OK |
|
CHECK PASSENGER AIRBAG ON/OFF INDICATOR CIRCUIT (SHORT)
Disconnect SST from connector B.
| *1 | Radio Receiver Assembly |
| *2 | Center Airbag Sensor Assembly |
| *3 | Front view of wire harness connector (to Radio Receiver Assembly) |
| *4 | Connector E |
w/ Navigation System:
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
| *1 | Accessory Meter Assembly |
| *2 | Center Airbag Sensor Assembly |
| *3 | Front view of wire harness connector (to Accessory Meter Assembly) |
| *4 | Connector E |
w/o Navigation System:
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
| NG |
|
CHECK INSTRUMENT PANEL WIRE (SHORT) Click here |
| OK |
|
CHECK PASSENGER AIRBAG ON/OFF INDICATOR CIRCUIT (SHORT TO GROUND)
| *1 | Radio Receiver Assembly |
| *2 | Center Airbag Sensor Assembly |
| *3 | Front view of wire harness connector (to Radio Receiver Assembly) |
| *4 | Connector E |
w/ Navigation System:
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| *1 | Accessory Meter Assembly |
| *2 | Center Airbag Sensor Assembly |
| *3 | Front view of wire harness connector (to Accessory Meter Assembly) |
| *4 | Connector E |
w/o Navigation System:
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| NG |
|
CHECK INSTRUMENT PANEL WIRE (SHORT TO GROUND) Click here |
| OK |
|
CHECK PASSENGER AIRBAG ON/OFF INDICATOR CIRCUIT (SHORT TO B+)
Connect the cable to the negative (-) battery terminal.
Turn the power switch on (IG).
| *1 | Radio Receiver Assembly |
| *2 | Center Airbag Sensor Assembly |
| *3 | Front view of wire harness connector (to Radio Receiver Assembly) |
| *4 | Connector E |
w/ Navigation System:
Measure the voltage according to the value(s) in the table below.
| Standard Voltage | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| *1 | Accessory Meter Assembly |
| *2 | Center Airbag Sensor Assembly |
| *3 | Front view of wire harness connector (to Accessory Meter Assembly) |
| *4 | Connector E |
w/o Navigation System:
Measure the voltage according to the value(s) in the table below.
| Standard Voltage | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| NG |
|
CHECK INSTRUMENT PANEL WIRE (SHORT TO B+) Click here |
| OK |
|
REPLACE CENTER AIRBAG SENSOR ASSEMBLY Click here
CHECK CONNECTORS
Turn the power switch off.
Disconnect the cable from the negative (-) battery terminal.
Note
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
Check that the connectors are properly connected to the center airbag sensor assembly and radio receiver assembly*1 or accessory meter assembly*2. Also check that the connectors that link the instrument panel wire and No. 2 instrument panel wire are properly connected.
*1: w/ Navigation System
*2: w/o Navigation System
| OK |
|---|
| The connectors are properly connected. |
Tech Tips
If the connectors are not connected securely, reconnect the connectors and proceed to the next inspection.
Disconnect the connectors from the center airbag sensor assembly and radio receiver assembly*1 or accessory meter assembly*2. Also disconnect the connectors that link the instrument panel wire and No. 2 instrument panel wire.
*1: w/ Navigation System
*2: w/o Navigation System
Check that the terminals of connectors are not damaged.
| OK |
|---|
| The terminals are not deformed or damaged. |
| NG |
|
REPLACE WIRE HARNESS |
| OK |
|
CHECK PASSENGER AIRBAG ON/OFF INDICATOR CIRCUIT (OPEN)
Connect the connectors that link the instrument panel wire and No. 2 instrument panel wire.
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.
w/ Navigation System:
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
| *1 | Radio Receiver Assembly | *2 | Center Airbag Sensor Assembly |
| *3 | Front view of wire harness connector (to Center Airbag Sensor Assembly) |
*4 | Front view of wire harness connector (to Radio Receiver Assembly) |
| *5 | Connector B | *6 | Connector E |
w/o Navigation System:
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
| *1 | Accessory Meter Assembly | *2 | Center Airbag Sensor Assembly |
| *3 | Front view of wire harness connector (to Center Airbag Sensor Assembly) |
*4 | Front view of wire harness connector (to Accessory Meter Assembly) |
| *5 | Connector B | *6 | Connector E |
| NG |
|
CHECK INSTRUMENT PANEL WIRE (OPEN) Click here |
| OK |
|
CHECK PASSENGER AIRBAG ON/OFF INDICATOR CIRCUIT (SHORT)
Disconnect SST from connector B.
| *1 | Radio Receiver Assembly |
| *2 | Center Airbag Sensor Assembly |
| *3 | Front view of wire harness connector (to Radio Receiver Assembly) |
| *4 | Connector E |
w/ Navigation System:
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
| *1 | Accessory Meter Assembly |
| *2 | Center Airbag Sensor Assembly |
| *3 | Front view of wire harness connector (to Accessory Meter Assembly) |
| *4 | Connector E |
w/o Navigation System:
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
| NG |
|
CHECK INSTRUMENT PANEL WIRE (SHORT) Click here |
| OK |
|
CHECK PASSENGER AIRBAG ON/OFF INDICATOR CIRCUIT (SHORT TO GROUND)
| *1 | Radio Receiver Assembly |
| *2 | Center Airbag Sensor Assembly |
| *3 | Front view of wire harness connector (to Radio Receiver Assembly) |
| *4 | Connector E |
w/ Navigation System:
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| *1 | Accessory Meter Assembly |
| *2 | Center Airbag Sensor Assembly |
| *3 | Front view of wire harness connector (to Accessory Meter Assembly) |
| *4 | Connector E |
w/o Navigation System:
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| NG |
|
CHECK INSTRUMENT PANEL WIRE (SHORT TO GROUND) Click here |
| OK |
|
CHECK PASSENGER AIRBAG ON/OFF INDICATOR CIRCUIT (SHORT TO B+)
Connect the cable to the negative (-) battery terminal.
Turn the power switch on (IG).
| *1 | Radio Receiver Assembly |
| *2 | Center Airbag Sensor Assembly |
| *3 | Front view of wire harness connector (to Radio Receiver Assembly) |
| *4 | Connector E |
w/ Navigation System:
Measure the voltage according to the value(s) in the table below.
| Standard Voltage | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| *1 | Accessory Meter Assembly |
| *2 | Center Airbag Sensor Assembly |
| *3 | Front view of wire harness connector (to Accessory Meter Assembly) |
| *4 | Connector E |
w/o Navigation System:
Measure the voltage according to the value(s) in the table below.
| Standard Voltage | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| NG |
|
CHECK INSTRUMENT PANEL WIRE (SHORT TO B+) Click here |
| OK |
|
CHECK PASSENGER AIRBAG ON / OFF INDICATOR (SOURCE VOLTAGE)
Turn the power switch on (IG).
| *1 | Front view of wire harness connector (to Radio Receiver Assembly) |
w/ Navigation System:
Measure the voltage according to the value(s) in the table below.
| Standard Voltage | ||||||
|---|---|---|---|---|---|---|
|
| Result | ||||||
|---|---|---|---|---|---|---|
|
| *1 | Front view of wire harness connector (to Accessory Meter Assembly) |
w/o Navigation System:
Measure the voltage according to the value(s) in the table below.
| Standard Voltage | ||||||
|---|---|---|---|---|---|---|
|
| Result | ||||||
|---|---|---|---|---|---|---|
|
| B |
|
REPLACE WIRE HARNESS (RADIO RECEIVER ASSEMBLY - BATTERY) OR BATTERY |
| C |
|
REPLACE WIRE HARNESS (ACCESSORY METER ASSEMBLY - BATTERY) OR BATTERY |
| A |
|
CHECK PASSENGER AIRBAG ON/OFF INDICATOR
| *1 | Front view of wire harness connector (to Center Airbag Sensor Assembly) |
Turn the power switch off.
Disconnect the cable from the negative (-) battery terminal.
Note
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
Connect the connector to the radio receiver assembly*1 or accessory meter assembly*2.
*1: w/ Navigation System
*2: w/o Navigation System
Connect the cable to the negative (-) battery terminal.
Turn the power switch on (IG).
Check the indicator according to the conditions in the table below.
| Result | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| Result | ||||||||
|---|---|---|---|---|---|---|---|---|
|
| B |
|
REPLACE RADIO RECEIVER ASSEMBLY Click here |
| C |
|
REPLACE ACCESSORY METER ASSEMBLY Click here |
| A |
|
CHECK CENTER AIRBAG SENSOR ASSEMBLY
| *1 | Radio Receiver Assembly*1 or Accessory Meter Assembly*2 |
| *2 | Center Airbag Sensor Assembly |
Turn the power switch off.
Disconnect the cable from the negative (-) battery terminal.
Note
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
Connect the connector to the center airbag sensor assembly.
Connect the cable to the negative (-) battery terminal.
Turn the power switch on (IG), and wait for at least 60 seconds.
Clear the DTCs stored in the memory Click here.
Turn the power switch off.
Turn the power switch on (IG), and wait for at least 60 seconds.
Check for DTCs Click here.
| OK |
|---|
| DTC B1660/43 is not output. |
*1: w/ Navigation System
*2: w/o Navigation System
Tech Tips
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 Click here |
| OK |
|
USE SIMULATION METHOD TO CHECK Click here
CHECK INSTRUMENT PANEL WIRE (OPEN)
Disconnect the instrument panel wire from the No. 2 instrument panel wire.
Tech Tips
SST has already been inserted into connector B.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
| *1 | Radio Receiver Assembly*1 or Accessory Meter Assembly*2 | *2 | Center Airbag Sensor Assembly |
| *3 | No. 2 Instrument Panel Wire | *4 | Instrument Panel Wire |
| *5 | Front view of wire harness connector (to Center Airbag Sensor Assembly) |
*6 | Front view of wire harness connector (to No. 2 Instrument Panel Wire) |
| *7 | Connector B | *8 | Connector C |
*1: w/ Navigation System
*2: w/o Navigation System
| NG |
|
REPLACE INSTRUMENT PANEL WIRE |
| OK |
|
REPLACE NO. 2 INSTRUMENT PANEL WIRE
CHECK INSTRUMENT PANEL WIRE (SHORT)
| *1 | Radio Receiver Assembly*1 or Accessory Meter Assembly*2 |
| *2 | Center Airbag Sensor Assembly |
| *3 | No. 2 Instrument Panel Wire |
| *4 | Instrument Panel Wire |
| *5 | Front view of wire harness connector (to No. 2 Instrument Panel Wire) |
| *6 | Connector C |
Disconnect the instrument panel wire from the No. 2 instrument panel wire.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
*1: w/ Navigation System
*2: w/o Navigation System
| NG |
|
REPLACE INSTRUMENT PANEL WIRE |
| OK |
|
REPLACE NO. 2 INSTRUMENT PANEL WIRE
CHECK INSTRUMENT PANEL WIRE (SHORT TO GROUND)
| *1 | Radio Receiver Assembly*1 or Accessory Meter Assembly*2 |
| *2 | Center Airbag Sensor Assembly |
| *3 | No. 2 Instrument Panel Wire |
| *4 | Instrument Panel Wire |
| *5 | Front view of wire harness connector (to No. 2 Instrument Panel Wire) |
| *6 | Connector C |
Disconnect the instrument panel wire from the No. 2 instrument panel wire.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
*1: w/ Navigation System
*2: w/o Navigation System
| NG |
|
REPLACE INSTRUMENT PANEL WIRE |
| OK |
|
REPLACE NO. 2 INSTRUMENT PANEL WIRE
CHECK INSTRUMENT PANEL WIRE (SHORT TO B+)
| *1 | Radio Receiver Assembly*1 or Accessory Meter Assembly*2 |
| *2 | Center Airbag Sensor Assembly |
| *3 | No. 2 Instrument Panel Wire |
| *4 | Instrument Panel Wire |
| *5 | Front view of wire harness connector (to No. 2 Instrument Panel Wire) |
| *6 | Connector C |
Turn the power switch off.
Disconnect the cable from the negative (-) battery terminal.
Note
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
Disconnect the instrument panel wire from the No. 2 instrument panel wire.
Connect the cable to the negative (-) battery terminal.
Turn the power switch on (IG).
Measure the voltage according to the value(s) in the table below.
| Standard Voltage | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
*1: w/ Navigation System
*2: w/o Navigation System
| NG |
|
REPLACE INSTRUMENT PANEL WIRE |
| OK |
|
REPLACE NO. 2 INSTRUMENT PANEL WIRE