B1036

DTC B1036: Driver Air Bag (2nd Stage) Circuit Low Resistance

Wiring Diagram

Refer to B1035 DTC B1035: Driver Air Bag (2nd Stage) Circuit High Resistance:Advanced Air Bag.

DTC Detecting Condition and Trouble Area






DTC Troubleshooting



1.
Was "Air Bag Diagnostic System Check Flow" performed?
YES
Go to Step 2.
NO
Go to Air Bag Diagnostic System Check Flow:Advanced Air Bag.

2. Driver air bag 2nd stage circuit check

With ignition switch turned OFF, disconnect contact coil connector located under the steering column.
Check for proper connection to contact coil at terminal in "G347" connector.
If OK, then connect special tools (A) and (B) to "G347" connector disconnected in Step 1).
Special Tool

(A): 09932-75010

(B): 09932-77320





Check SDM for DTC.

NOTE:
At this time, DTC B1031 may be output, but it is not related to this check.

With ignition switch turned ON, is DTC B1036 indicated?
YES
Go to Step 3.
NO
Go to Step 5.

3. Driver air bag 2nd stage circuit check

Disconnect SDM connector "L04".
Check for proper connection to SDM connector at terminal "L04-15" and "L04-16".
If OK, release shorting bar in SDM connector inserting release tool (1) included in special tool (A).
Special Tool

(A): 09932-76010

Measure resistance between "G347-3" and "G347-4" terminals.






Is measured resistance infinity?
YES
Substitute a known-good SDM and recheck.
NO
Go to Step 4.

4. Floor harness circuit check

Disconnect "L401" connector located near the driver side front pillar lower trim.
Check for proper connection to floor harness connector at terminal "L401-1" and "L401-2".
If OK, release shorting bar in SDM connector inserting release tool (1) included in special tool (A).
Special Tool

(A): 09932-76010

Measure resistance between "L401-1" and "L401-2" terminals.






Is measured resistance infinity?
YES
Repair "BRN/RED" circuit for short to "BRN/BLK" circuit at instrument panel harness.
NO
Repair "BRN/RED" circuit for short to "BRN/BLK" circuit at floor harness.

5. Contact coil circuit check

Check contact coil circuit check referring to Testing and Inspection Contact Coil Cable and Its Circuit Check:Advanced Air Bag.

Is contact coil circuit in good condition?
YES
Replace driver air bag (inflator) module referring to Driver Air Bag (Inflator) Module Removal and Installation:Advanced Air Bag.
NO
Replace contact coil assembly referring to Contact Coil Cable Assembly Removal and Installation.

NOTE:

Upon completion of inspection and repair work, perform the following items.

- Reconnect all air bag system components and ensure all components are properly mounted.
- Clear DTCs referring to DTC Clearance DTC Clearance:Advanced Air Bag
, if any.
- Repeat Air Bag Diagnostic System Check Air Bag Diagnostic System Check:Advanced Air Bag
to confirm that the trouble has been corrected.