STEP 4. Check the clock spring.
(1) Disconnect the negative battery terminal.
(2) Disconnect the clock spring connector C-313.
(3) Connect special tool MB991865 to special tool MB991866.
(4) caution | Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. |
Insert the resistor harness probe from the back of C-313 harness side connector (terminal No.3 and 4 <1st squib> or (terminal No.1 and 2 <2nd squib>).
(5) Connect the negative battery terminal.
(6) caution | Always DTC B1481 is stored when checking DTC B1402. This is because the second side terminal is isolated when checking it, DTC B1481 is stored but this is not a fault. In addition, always DTC B1401 is stored when checking DTC B1482 because the first side terminal is isolated. |
Erase the diagnostic trouble code memory, and check the diagnostic trouble code.
Is the checked DTC stored?
Go to Step 5. Replace the clock spring. (Refer to ). Then go to Step 7.