B1031

DTC B1031 / B1035

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. Driver air bag (inflator) module check
Confirm that ignition mode of keyless push start system is in "OFF".
Check for proper connection to "G347" connector.
Disconnect "G347" connector.
Connect "STEERING WHEEL" harness (1) of special tools (A) and (B) to "G347" connector.
Special Tool

(A): 09932-77320

(B): 09932-75010





Check DTC with ignition mode of keyless push start system in "ON".
Is DTC B1031 or DTC B1035 detected?
YES
Go to Step 3.
NO
Go to Step 4.
3. Instrument panel harness circuit check
Check for proper connection to "G11" connector.
Disconnect "G11" connector.
Release shorting bar in SDM connector inserting release tool included in special tool (A).
Check the following points.
Resistance of "A1" and "A2" circuit (DTC B1031): 1 or less
Resistance of "A3" and "A4" circuit (DTC B1035): 1 or less
Special Tool

(A): 09932-76010





Are they in good condition?
YES
Replace SDM with new one. SDM Removal and Installation
NO
Replace instrument panel harness.
4. Contact coil circuit check
Check contact coil circuit. Testing and Inspection
Is contact coil circuit in good condition?
YES
Replace driver air bag (inflator) module. Removal and Installation
NO
Replace contact coil assembly. Steering Wheel and Column Components

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.