B1B2F

B1B2F-1st ROW PASSENGER SEAT BELT PRETENSIONS CIRCUIT SHORT TOGETHER

B1B2F - 1st Row Passenger Seat Belt Pretensions Circuit Short Together:

WHEN MONITORED
With the ignition on, the ORC monitors the resistance of the Passenger Seat Belt Tensioner circuits.

SET CONDITION
The ORC has detected low resistance between the Passenger Seat Belt Tensioner circuits.

POSSIBLE CAUSES
- (R56) Passenger seat belt tensioner line 1 shorted to (R54) passenger seat belt tensioner line 2
- Passenger seat belt tensioner
- Occupant restraint controller (ORC)

Diagnostic Test

1. DETERMINE ACTIVE OR STORED DTC

NOTE:
- Ensure the battery is fully charged.
- The Scan Tool, SRS Airbag Load Tool MRL 8443 and DVOM are required to perform the following test.

Select Active or Stored DTC.

Q: Is the DTC active or stored?

ORC - ACTIVE DTC
Go To 2

ORC - STORED DTC
Go To 5

2. PASSENGER SEAT BELT TENSIONER SHORTED TOGETHER






WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNITION OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING.

Disconnect the Passenger Seat Belt Tensioner harness connector(s).

NOTE: Check connectors - Clean and repair as necessary.

Connect the 8443 Load Tool and appropriate Jumper to the Passenger Airbag connector(s).

WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNITION ON THEN RECONNECT THE BATTERY.

With the scan tool, read the active Occupant Restraint Controller DTCs.

Q: Does the scan tool display: 1st ROW PASSENGER SEAT BELT PRETENSIONER CIRCUIT SHORT TOGETHER?

YES: Go to 3
NO: Replace the Passenger Seat Belt Tensioner.
Perform AIRBAG SYSTEM VERIFICATION TEST - VER 1. Airbag System Verification Test

3. (R56) PASSENGER SEAT BELT TENSIONER LINE 1 SHORTED TO (R54) PASSENGER SEAT BELT TENSIONER LINE 2






WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNITION OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING.

Disconnect the 8443 Load Tool and Jumper from the Passenger Seat Belt Tensioner harness connector(s).
Disconnect the Occupant Restraint Controller harness connector(s).

NOTE: Check connectors - Clean and repair as necessary.

Connect the 8443 Load Tool ORC Adaptor to the ORC harness connector.
Measure the resistance between the (R56) Passenger Seat Belt Tensioner Line 1 and (R54) Passenger Seat Belt Tensioner Line 2 at the Passenger Seat Belt Tensioner harness connector.

Q: Is the resistance below 10K ohms?

YES: Repair the (R56) Passenger Seat Belt Tensioner Line 1 shorted to the (R54) Passenger Seat Belt Tensioner Line 2 circuit.
Perform AIRBAG SYSTEM VERIFICATION TEST - VER 1. Airbag System Verification Test
NO: Go to 4

4. OCCUPANT RESTRAINT CONTROLLER

WARNING: IF THE AIRBAG CONTROL MODULE IS DROPPED AT ANY TIME, IT MUST BE REPLACED. FAILURE TO TAKE THE PROPER PRECAUTIONS CAN RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND PERSONAL INJURY OR DEATH.

If there are no possible causes remaining, view repair.

Repair
Replace the Occupant Restraint Controller.
Perform AIRBAG SYSTEM VERIFICATION TEST - VER 1. Airbag System Verification Test

5. STORED ORC DTC
With the scan tool, record and erase all DTCs from all Airbag System Modules.
If any ACTIVE codes are present they must be resolved before diagnosing any stored codes.

WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNITION OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING.

Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
Look for chafed, pierced, pinched, or partially broken wires and broken, bent, pushed out, spread, corroded, or contaminated terminals.
The following additional checks may assist you in identifying a possible intermittent problem.
Reconnect any disconnected components and harness connector.

WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNITION ON, THEN RECONNECT THE BATTERY.

With the scan tool monitor active codes as you work through the following steps.
Wiggle the wiring harness and connectors of the related airbag circuit or component.
If only stored codes return continue the test until the problem area has been isolated.
In the previous steps you have attempted to recreate the conditions responsible for setting active DTC in question.

Q: Are any ACTIVE DTC's present?

YES: Select appropriate symptom from Symptom List.
NO: No problem found at this time. Erase all codes before returning vehicle to customer.