Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Special Tools Required
J 38715-A Driver and Passenger SIR Load Tool
Circuit/System Verification
Note: Refer to SIR Service Precautions (See: Restraints and Safety Systems/Air Bag Systems/Service Precautions/Technician Safety Information)
Inspect all terminals for damage or corrosion when disconnecting connectors. Damage or corrosion in the following requires repair or replacement of
the affected component/connector.
* Seat belt pretensioner
* Passenger instrument panel airbag
* Side air bag
* Roof rail airbag
* SDM
* SDM wiring harness connector
Note: The connector and connector position assurance (CPA) may seat independent of each other. Both the connector and CPA should seat with an
audible and/or tactile click. The CPA isolates the shorting-bars within the connector allowing the deployment circuit to operate properly.
If the condition is intermittent or cannot be duplicated, disconnect the connectors and add Nyogel lubricant 760G. This procedure will correct the
high resistance condition due to terminal fretting corrosion.
Observe the scan tool Deployment Loop Resistance parameters while moving the harness near each connector listed below. The reading should stay
consistently between 1.7 and 4.2 ohm without any drop outs or spikes.
* Passenger instrument panel air bag
* Roof rail air bag
* Seat side air bag
* Seat belt pretensioner
* Any inline harness
* SDM
If the reading is erratic while moving the harness, perform the following;
* Inspect each connector terminal for damage or corrosion and repair as necessary.
* Apply Nyogel lubricant 760G to each connector terminal.
* Insure each connector and CPA is correctly seated.
Circuit/System Testing
DTC B0014-B0018 or B0021-B0045
1. Ignition OFF, disconnect the scan tool and disconnect the harness connector at the appropriate air bag or seat belt retractor pretensioner.
2. With the appropriate load tool adaptor, connect special tool J 38715-A in place of the air bag or seat belt retractor pretensioner.
3. Wait for 120 seconds and then test for greater than 25 ohm between the control circuit terminals listed below.
* Left roof rail air bag terminal 1 and 2
* Right roof rail air bag terminal 1 and 2
* Driver seat side air bag terminal 1 and 2
* Passenger seat side air bag terminal 1 and 2
* Driver seat belt retractor pretensioner terminal 1 and 2
* Passenger seat belt retractor pretensioner terminal 1 and 2
锟斤拷 If less than the specified range, test for a short between the control circuits, check each connector and CPA to ensure that the shorting bars
are lifted. If the circuits and shorting bars tests normal, replace the SDM.
4. Ignition ON, test for less than 11 V between the control circuit terminals listed below and ground:
* Roof rail air bag control circuit terminal 1
* Roof rail air bag control circuit terminal 2
* Seat side air bag control circuit terminal 1
* Seat side air bag control circuit terminal 2
* Retractor pretensioner control circuit terminal 1
* Retractor pretensioner control circuit terminal 2
