B1318

DTC B1318

DTC Detecting Condition and Trouble Area






Circuit Diagram










DTC Troubleshooting

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

2. DTC check

Confirm that ignition mode of keyless push start system is in "OFF".
Connect scan tool to DLC.
Push engine switch to change ignition mode of keyless push start system to "ON".
Check DTC.

Is DTC B1317 indicated?
YES -
Go to B1317 DTC B1317.
NO -
Go to Step 3.

3. OCM power supply and ground circuits check

Check OCM power supply and ground circuits. Testing and Inspection

Is it in good condition?
YES -
Go to Step 4.
NO -
Repair OCM power supply or ground circuit.

4. OCM circuit check

Confirm that ignition mode of keyless push start system is in "OFF".
Disconnect "L05" and "L08" connectors.
Check for proper connection at "L05-15" terminal.
Check for proper connection at "L08-1" terminal.
Measure resistance between "L05-15" terminal and ground.
Special Tool

(A): 09932-76010





Is measured resistance infinite?
YES -
Go to Step 5.
NO -
Repair short to ground in defective circuit.

5. DTC check

Confirm that ignition mode of keyless push start system is in "OFF".
Connect scan tool to DLC.
Push engine switch to change ignition mode of keyless push start system to "ON".
Check DTC.

Is DTC B1318 still indicated?
YES -
Replace seat cushion built in OCM with sensor mat. Components
If DTC still exists, substitute a known-good SDM and recheck DTC. SDM Removal and Installation
NO -
Intermittent trouble. Check intermittent trouble. Intermittent Connection and Poor Contact Inspection

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
, if any DTC is detected.
- Repeat Air Bag Diagnostic System Check Air Bag Diagnostic System Check
to confirm that the trouble has been solved.