DTC B1150/23 Occupant Classification System Malfunction
DESCRIPTION
The occupant classification system circuit consists of the center airbag sensor assembly and the occupant classification ECU.
If the center airbag sensor assembly receives signals from the occupant classification ECU, it determines whether or not the front passenger airbag, the front seat side airbag RH, and front seat belt pretensioner RH should be operated.
DTC B1150/23 is recorded when a malfunction is detected in the occupant classification system circuit.
DTC No. |
DTC Detecting Condition |
Trouble Area |
B1150/23 |
|
|
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK DTC (OCCUPANT CLASSIFICATION ECU)
OK: DTC is not output.
GO TO INSPECTION PROCEDURE
OF DTC
OUTPUT
2 CHECK DTC (CENTER AIRBAG SENSOR ASSEMBLY)
OK: DTC B1150/23 is not output. HINT: Codes other than code B1150/23 may be output at this time, but they are not related to this check.
Go to step 3
USE SIMULATION METHOD TO CHECK
3 CHECK CONNECTION OF CONNECTORS
OK: The connectors are connected.
CONNECT CONNECTORS
4 CHECK OCCUPANT CLASSIFICATION ECU CIRCUIT (SHORT TO GROUND)
Standard resistance
Go to step 8
5 CHECK OCCUPANT CLASSIFICATION ECU CIRCUIT (SHORT TO B+)
Standard voltage
Go to step 9
6 CHECK OCCUPANT CLASSIFICATION ECU CIRCUIT (SHORT)
Standard resistance
Go to step 10
7 CHECK OCCUPANT CLASSIFICATION ECU CIRCUIT (OPEN)
NOTICE: Do not forcibly insert a service wire into the terminals of the connector when connecting.
NOTICE: Do not forcibly insert a service wire into the terminals of the connector when connecting.
Standard resistance
Go to step 11
CHECK FRONT SEAT WIRE RH (SHORT TO GROUND)
Standard resistance
REPAIR OR REPLACE FRONT SEAT
WIRE
RH
REPAIR OR REPLACE FLOOR WIRE NO.2
9 CHECK FRONT SEAT WIRE RH (SHORT TO B+)
Standard voltage
REPAIR OR REPLACE FRONT SEAT
WIRE
RH
REPAIR OR REPLACE FLOOR WIRE NO.2
10 CHECK FRONT SEAT WIRE RH (SHORT)
Standard resistance
REPAIR OR REPLACE FRONT SEAT
WIRE
RH
REPAIR OR REPLACE FLOOR WIRE NO.2
11 CHECK FRONT SEAT WIRE RH (OPEN)
NOTICE: Do not forcibly insert a service wire into the terminals of the connector when connecting.
NOTICE: Do not forcibly insert a service wire into the terminals of the connector when connecting.
Standard resistance
REPAIR OR REPLACE FRONT SEAT
WIRE
RH
REPAIR OR REPLACE FLOOR WIRE NO.2
High Temperature
DTC 58-45 High Temperature
DTC 80-45 High Temperature
DESCRIPTION
DTC No.
DTC Detection Condition
Trouble Area
58-45
High map disc player temperature is detected (Over
80C).
Radio and navigation assembly
80-45
High map disc player tem ...
On-vehicle inspection
1. CHECK ACCELERATOR PEDAL ROD
Check the voltage.
Connect the intelligent tester to the DLC3.
Turn the ignition switch to the ON position.
Turn the intelligent tester on.
Select the menu items: DIAGNOSIS /
ENHANCED OBD II / DATA LIST / ALL /
ACCEL POS ...
Inspection
1. INSPECT FRONT SEAT INNER BELT ASSEMBLY RH
Release the seat belt (Buckle switch is ON).
Check the resistance between the terminals.
Standard
If the result is not as specified, replace the inner belt
assembly.
Inspect the buckle switch.
Fasten ...