B1300

B1300 - PASSENGER KNEE BLOCKER AIRBAG SHORT TO GROUND





- When Monitored: Ignition on.The Occupant Restraint Controller (ORC) monitors the resistance of the Passenger Knee Blocker Airbag Squib Circuits.

- Set Condition: The Occupant Restraint Controller (ORC) has detected low resistance in the Passenger Knee Blocker Airbag Squib Circuits.





Diagnostic Test

1. VERIFY THAT DTC B1300 - PASSENGER KNEE BLOCKER AIRBAG SHORT TO GROUND IS ACTIVE

NOTE: Ensure the battery is fully charged.

NOTE: A scan tool is required to perform the following test.

NOTE: When reconnecting Airbag system components, the ignition must be turned off and the battery must be disconnected.

Turn the ignition on.

With the scan tool, read ORC DTCs.

Does the scan tool display active: B1300 - PASSENGER KNEE BLOCKER AIRBAG CIRCUIT LOW?

Yes

- Go To 2

No

- Go To 5

2. WITH THE SCAN TOOL, READ ACTIVE DTCs

WARNING: Turn the ignition off, disconnect the battery and wait two minutes before proceeding.

Disconnect the Passenger Knee Blocker Airbag connector.

NOTE: Check connectors - Clean/repair as necessary.

Connect the appropriate Load Tool to the Passenger Knee Blocker Airbag Squib connector.

WARNING: TURN THE IGNITION ON, THEN RECONNECT THE BATTERY.

With the scan , read the active DTCs.

Does the scan tool display an active Passenger Knee Blocker Airbag Squib DTC?

Yes

- Go to 3

No

- Replace the Passenger Knee Blocker Airbag.
- Perform AIRBAG VERIFICATION TEST. Airbag System Verification Test

3. CHECK THE PASSENGER KNEE BLOCKER AIRBAG SQUIB LINE 1 CIRCUIT FOR A SHORT TO GROUND





WARNING: To avoid personal injury or death, turn the ignition off, disconnect the battery and wait two minutes before proceeding.

Disconnect the ORC harness connector.

NOTE: Check connectors - Clean and repair as necessary.

Measure the resistance of the Passenger Knee Blocker Airbag Indicator squib line 1 circuit and ground.

Is the resistance below 10K ohms?

Yes

- Repair the Passenger Knee Blocker Squib Line 1 circuit.
- Perform AIRBAG VERIFICATION TEST. Airbag System Verification Test

No

- Go To 4

4. CHECK THE PASSENGER KNEE BLOCKER AIRBAG SQUIB LINE 2 CIRCUIT FOR A SHORT TO GROUND





With the ignition off.

Measure the resistance of the Passenger Knee Blocker Airbag Indicator squib line 2 circuit and ground.

Is the resistance below 10k ohms?

Yes

- Repair the Passenger Knee Blocker Squib Line 2 circuit.
- Perform AIRBAG VERIFICATION TEST. Airbag System Verification Test

No

- Replace the Occupant Restraint Controller.
- Perform AIRBAG VERIFICATION TEST. Airbag System Verification Test

5. TEST FOR INTERMITTENT CONDITION

With the scan tool, record and erase all DTCs from all Airbag 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.

WARNING: To avoid personal injury or death, maintain a safe distance from all airbags while performing the following steps.

Wiggle the wiring harness and connectors of the related airbag circuit or component.

If codes are related to the Driver Airbag circuits, rotate the steering wheel from stop to stop.

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 the active DTC in question.

Does the scan tool display any ACTIVE DTCs?

Yes

- Select the appropriate diagnostic procedure.

No

- No problem found at this time. Erase all codes before returning vehicle to customer.