LEMON Manuals: Even more car manuals for everyone
Home >> Jeep >> 2005 >> Wrangler Rubicon, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 491 (Body Diagnostic Procedures) >> Diagnostic Information And Procedures >> Airbag >> Symptom: NO RIGHT FRONT IMPACT SENSOR COMMUNICATION >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2005 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC PROCEDURE - NO RIGHT FRONT IMPACT SENSOR COMMUNICATION

TEST ACTION APPLICABILITY
1 Turn the ignition on.
NOTE: Ensure the battery is fully charged.
NOTE: For the purpose of this test, the AECM and ORC modules will be referred to as an ACM.

SELECT ACTIVE or STORED DTC:
ACM - ACTIVE DTC
Go To 2
ACM - STORED DTC
Go To 9
NOTE: When reconnecting Airbag system components, the ignition must be turned off and the battery must be disconnected.
 All
2
WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNITION OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING.
Disconnect the Right Front Impact Sensor connector.Disconnect the Airbag Control Module connector.
WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNITION ON, THEN RECONNECT THE BATTERY.
Measure the voltage of the right Front Impact Sensor Signal circuit and sensor ground at the Right Front Impact Sensor connector.Is there any voltage present?Yes --> Repair the Right Front Impact Sensor 1 Signal circuit shorted to battery.Perform AIRBAG VERIFICATION TEST - VER 1  .No --> Go To 3		 All
3
WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN IGNITION ON, THEN RECONNECT THE BATTERY.
Measure the resistance of the Right Front Impact Sensor Signal circuit between the Right Front Impact Sensor connector and ground.Is the resistance below 2.0L ohms?Yes --> Repair the Right Front Sense signal circuit shorted for a short to ground.Perform AIRBAG VERIFICATION TEST - VER 1  .No --> Go To 4		 All
4 Measure the resistance between the Right Front Impact Sensor 1 Signal and Sensor Ground circuits at the Right Front Impact Sensor 1 connector.
Is the resistance below 100K ohms?
Yes --> Repair the Right Front Impact Sensor circuits shorted together.
Perform AIRBAG VERIFICATION TEST - VER 1  .
No --> Go To 5		 All
5 Connect the appropriate Load Tool ACM Adaptor to the Airbag Control Module connector.
Measure the resistance of the Right Front Impact Sensor 1 ground circuit between the Right Front Impact Sensor 1 connector and the Load Tool adaptor.
Is the resistance below 1 ohm?
Yes --> Go To 6
No --> Repair the Right Front Impact Sensor 1 ground circuit open or high resistance.
Perform AIRBAG VERIFICATION TEST - VER 1  .		 All
6 Measure the resistance of the Right Side Impact Sensor Signal circuit between the Right Side Impact Sensor connector and the Load Tool adaptor.
Is the resistance below 1 ohm?
Yes --> Go To 7
No --> Repair the Right Front Impact Sensor 1 signal circuit open or high resistance.
Perform AIRBAG VERIFICATION TEST - VER 1  .		 All
7 Replace the Right Front Impact Sensor 1.
Reconnect the vehicle body harness to the impact sensor.
Remove any special tools or jumper wires and reconnect all previously disconnected components - except the Battery.
WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNITION ON, THEN RECONNECT THE BATTERY.

Connect the DRB to the Data Link Connector - use the most current software available.
Use the DRB III and erase the stored codes in all airbag system modules.
Turn the Ignition Off, and wait 15 seconds before turning the Ignition On.
Wait one minute, and read active codes and if there are none present read the stored codes.
DID the active Right Front Impact Sensor 1 DTC return?
Yes --> Go To 8
No --> Repair is complete.
Perform AIRBAG VERIFICATION TEST - VER 1  .		 All
8
WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNITION OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING.
WARNING: IF THE AIRBAG CONTROL MODULE IS DROPPED AT ANY TIME, IT MUST BE REPLACED. FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND PERSONAL INJURY OR DEATH.
If there are no possible causes remaining, view repair.RepairReplace the Airbag Control Module in accordance with Service Instructions.Perform AIRBAG VERIFICATION TEST - VER 1  .		 All
9 With the DRBIII®, record and erase all DTC's 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 chaffed, 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 DRBIII® 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 active DTC in question.
Are any ACTIVE DTCs present?
Yes --> Select appropriate symptom from Symptom List.
No --> No problem found at this time. Erase all codes before returning vehicle to customer.		 All
scientia non olet · About LEMON Manuals