B1204
B1204-PASSENGER AIRBAG INDICATOR CIRCUIT LOW
For a complete wiring diagram refer to Diagrams/Electrical.
- When Monitored:
With the ignition on.
- Set Condition:
If the Occupant Restraint Controller (ORC) cannot detect voltage on the (G104) Passenger Airbag Indicator Driver circuit.
Diagnostic Test
1. VERIFY THAT DTC: B1204-PASSENGER AIRBAG INDICATOR CIRCUIT LOW IS ACTIVE
NOTE: Ensure the battery is fully charged.
Turn the ignition on.
With the scan tool, read Occupant Restraint Controller (ORC) DTC.
Does the scan tool display active: B1204-PASSENGER AIRBAG INDICATOR DRIVER CIRCUIT LOW?
Yes
- Go To 2
No
- Go To 5
2. CHECK THE (G104) PASSENGER AIRBAG INDICATOR DRIVER CIRCUIT VOLTAGE AT THE ORC CONNECTOR
WARNING: To avoid serious or fatal injury, turn the ignition off, disconnect the battery and wait two minutes before proceeding.
Disconnect the ORC connectors.
NOTE: Check connectors - Clean and repair as necessary.
Connect the Load Tool ORC 8443-25 Adaptor to the ORC connectors.
WARNING: To avoid serious or fatal injury, turn the ignition on, then reconnect the battery.
Measure the voltage of the (G104) Passenger Airbag Indicator Driver circuit between the cavity 6 of the 24 way ORC Adaptor and ground.
Is the voltage above 6.0 volts?
Yes
-
WARNING: If the Occupant Restraint Controller (ORC) is dropped at any time, it must be replaced. Failure to take the proper precautions can result in accidental airbag deployment and serious or fatal injury.
WARNING: To avoid serious or fatal injury, turn the ignition off, disconnect the battery and wait two minutes before proceeding.
- Replace the ORC.
- Perform *ORC VERIFICATION TEST - VER 1. Occupant Restraint Controller (ORC) Verification Test
No
- Go To 3
3. CHECK (F201) FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT VOLTAGE AT THE PASSENGER AIRBAG ON/OFF SWITCH.
WARNING: To avoid serious or fatal injury, turn the ignition off, disconnect the battery and wait two minutes before proceeding.
Disconnect the Passenger Airbag On/Off Switch connector.
NOTE: Check connectors - Clean and repair as necessary.
WARNING: To avoid serious or fatal injury, turn the ignition on, then reconnect the battery.
Measure the voltage of the (F201) Fused Ignition Switch Output (Run-Start) circuit between the Passenger Airbag On/Off Switch connector and ground.
Is the voltage above 6.0 volts?
Yes
- Go To 4
No
-
WARNING: To avoid serious or fatal injury, turn the ignition off, disconnect the battery and wait two minutes before proceeding.
- Repair the (F201) Fused Ignition Switch Output circuit for an open or low voltage condition
- Perform *ORC VERIFICATION TEST - VER 1. Occupant Restraint Controller (ORC) Verification Test
4. CHECK (G104) PASSENGER AIRBAG INDICATOR DRIVER CIRCUIT FOR A SHORT TO GROUND
WARNING: To avoid serious or fatal injury, turn the ignition off, disconnect the battery and wait two minutes before proceeding.
Measure the resistance of the (G104) Passenger Airbag Indicator Driver circuit between cavity 6 of the 24 way ORC Adaptor and ground.
Is the resistance below 10 ohms?
Yes
- Repair the (G104) Passenger Airbag Indicator Driver circuit for a short to ground.
- Perform *ORC VERIFICATION TEST - VER 1. Occupant Restraint Controller (ORC) Verification Test
No
- Replace the shorted Passenger Airbag On/Off Indicator.
- Perform *ORC VERIFICATION TEST - VER 1. Occupant Restraint Controller (ORC) Verification Test
5. TEST FOR INTERMITTENT CONDITION
With the scan tool, record and erase all DTC from all Airbag modules.
If any ACTIVE codes are present they must be resolved before diagnosing any stored codes.
WARNING: To avoid serious or fatal injury, 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 serious or fatal injury, 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 serious or fatal injury, 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 DTC?
Yes
- Select appropriate symptom from Symptom List.
No
- No problem found at this time. Erase all codes before returning vehicle to customer.