Code No.34: SRS-ECU connector lock out of order


DIAGNOSIS CODE SET CONDITIONS


This diagnosis code is set if a poor connection at the SRS-ECU is detected. However, if the vehicle condition returns to normal, diagnosis code number 34 will be automatically erased, and the SRS warning lamp will go out.

PROBABLE CAUSES



DIAGNOSIS PROCEDURE

STEP 1. Connector lock check: SRS-ECU connector C-146 and C-147 (M.U.T.-III diagnosis code).
(1)Disconnect the negative battery terminal.

(2)Disconnect SRS-ECU connectors C-146 and C-147, and then reconnect them.
(3)Connect the negative battery terminal.
(4)Erase diagnosis code memory, and then check the diagnosis code.

Q. Is diagnosis code 34 set?

Go to Step 2.

The procedure is complete. It is assumed that diagnosis code 34 set as connector C-146 and C-147 was engaged improperly.

STEP 2. Connector lock check: SRS-ECU connector C-146 and C-147.

(1)Disconnect SRS-ECU connectors C-146 and C-147.

(2)Check the connector lock switch terminal inside the harness side connector for improper contact or deformation.

Q. Are the SRS-ECU connector C-146 and C-147 in good condition?

Go to Step 3.

Repair the SRS-ECU connector C-146 and C-147.

STEP 3. Check whether the diagnosis code is reset.

Q. Is diagnosis code 34 set?
Replace the SRS-ECU (Refer to).
An intermittent malfunction is suspected (Refer to GROUP 00, How to Use Troubleshooting/Inspection Service Points ).