Code No.B1132 Starter circuit fail



caution When replacing the ECU, always check that the communication circuit is normal.

DIAGNOSTIC FUNCTION


When a short circuit (short to power supply) of starter setting circuit system is detected, or when an error to the starter starting circuit system is judged, OSS-ECU sets the diagnosis code No.B1132. At the same time, OSS-ECU displays the power supply system error warning screen to the multi information display of the combination meter.

JUDGEMENT CRITERIA


Check Conditions
Judgment Criterion
  1. When the starter setting signal is OFF, the cranking signal is received from engine-ECU.
  2. When the starter setting signal is OFF, the ignition start signal is received from ETACS-ECU.

PROBABLE CAUSES




DIAGNOSIS PROCEDURE


STEP 1. M.U.T.-III other system data list


Check the engine-ECU data list.

  • Item No. 79: Cranking signal (Refer to GROUP 13A - Troubleshooting, Service Data Reference Table .)

Q. Is the check result normal?

Go to Step 2
Carry out the troubleshooting for the diagnosis code No.B1131. Refer to .

STEP 2. Check of short to power supply, short to earth, and open circuit in NTSW line between starter relay connector and engine-ECU connector


Q. Is the check result normal?

Go to Step 3
Repair the connector(s) or wiring harness.

STEP 3. M.U.T.-III other system data list


Check the ABS-ECU data list or ASC-ECU data list.

  • Item No. 87: Ignition switch (input value) (Refer to GROUP 35B - Troubleshooting <ABS> or GROUP 35C - Troubleshooting <ASC>.)

Q. Is the check result normal?

Go to Step 4
Replace the ETACS-ECU.

STEP 4. Check whether the diagnosis code is reset.


Q. Is the diagnosis code set?

YES (Set after 10 seconds or more have elapsed since the engine switch ON) : Replace the engine-ECU and register the chassis number and key codes [Refer to GROUP 00 - How to Perform Chassis Number (Chassis No.) Writing ].
YES (Set within 10 seconds since the engine switch ON) : Replace the OSS-ECU and register the chassis number (Refer to ).
NO : Intermittent malfunction is suspected (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction ).