Restraints

U0002-CAN C BUS OFF PERFORMANCE

For a complete wiring diagram consult Diagrams/Electrical.


- When Monitored:
The ORC checks for serial data message traffic at power up during the initialization process, and continuously through the ignition cycle.

- Set Condition:
This DTC sets when the ORC fails to detect serial data message traffic for more than 5 seconds. In the event the ORC detects serial data message traffic, this DTC will immediately transition to stored status.








Diagnostic Test


1. DETERMINE ACTIVE OR STORED DTC
Is the DTC active or stored?

ORC - ACTIVE DTC


- Go To 2


ORC - STORED DTC


- Go To 3




2. REPLACE OCCUPANT RESTRAINT CONTROLLER
When this code is set, view repair.

Repair


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




3. STORED ORC DTC
With the scan tool, record and erase all DTC's from all Airbag System 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.
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 active DTC in question.
Are any ACTIVE DTC's present?

Yes


- Diagnose and repair the DTC(s).


No


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