B1068

DTC B1064 / B1068: Side Air Bag Circuit Shorted to Power Supply

DTC B1064: Side Air Bag Circuit Shorted to Power Supply (Driver Side)

DTC B1068: Side Air Bag Circuit Shorted to Power Supply (Passenger Side)

Wiring Diagram

Refer to B1061 DTC B1061 / B1065: Side Air Bag 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 Air Bag Diagnostic System Check Flow:Advanced Air Bag.

2. Front side-air bag circuit check

Remove applicable driver-side / passenger-side front side-air bag (inflator) module from seat back referring to Removal and Installation Front Side-Air Bag (Inflator) Module Removal and Installation:Advanced Air Bag.
Disconnect SDM connector "L04".
Check for proper connection to applicable front side-air bag (inflator) module at terminal in connector "Q104" or "Q105".
Check for proper connection to SDM connector at terminal "L04-11" and "L04-12" (for DTC B1064) or terminal "L04-13" and "L04-14" (for DTC B1068).
If OK, release shorting bar in SDM connector inserting release tool (1) included in special tool (A).
Special Tool

(A): 09932-76010

With ignition switch turned ON, measure voltage between "L04-11" terminal and body ground, and between "L04-12" terminal and body ground (for DTC B1064).
Measure voltage between "L04-13" terminal and body ground, and between "L04-14" terminal and body ground (for DTC B1068).






Is each measured voltage 0 V?
YES -
Substitute a known-good SDM and recheck.
NO -
Go to Step 3.

3. Floor harness circuit check

Disconnect applicable "L384" or "L385" connector under front cushion.
Check for proper connection to applicable floor harness connector at terminal in connector "L384" or "L385".
If OK, release shorting bar in SDM connector inserting release tool (1) included in special tool (A).
Special Tool

(A): 09932-76010

With ignition switch turned ON, measure voltage between "L04-11" terminal and body ground, and between "L04-12" terminal and body ground (for DTC B1064).
Measure voltage between "L04-13" terminal and body ground, and between "L04-14" terminal and body ground (for DTC B1068).






Is each measured voltage 0 V?
YES -
DTC B1064: Repair "YEL" circuit or "BLK" circuit for short to power supply circuit at driver-side front side-air bag harness.
DTC B1068: Repair "YEL" circuit or "BLK" circuit for short to power supply circuit at passenger-side front side-air bag harness.
NO -
DTC B1064: Repair "GRY/RED" circuit or "GRY" circuit for short to power supply circuit at floor harness.
DTC B1068: Repair "BRN/WHT" circuit or "BRN" circuit for short to power supply circuit at floor harness.

NOTE:

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

- Reconnect all air bag system components, 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.