B1314

DTC B1314: OCM Power Supply Voltage Out of Range

Wiring Diagram

Refer to B1018 DTC B1018: OCM Communication Error: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. OCM power supply and ground circuit check

Check OCM power supply and ground circuit referring to Testing and Inspection OCM Power Supply and Ground Circuit Check:Advanced Air Bag.

Is it in good condition?
YES -
Go to Step 3.
NO -
Repair OCM power supply or ground circuit.

3. Battery voltage check

With engine running at about 3000 rpm, measure voltage battery.

Is voltage in 12 - 15 V?
YES -
Substitute a known-good SDM and recheck.
NO -
Check charging system and repair as necessary referring to Testing and Inspection Generator Test.

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.