MSB is released for this page as follows:
Release DateSubjectMSB No.
2011-01-20AIR CONDITIONER AND ON BOARD CHARGER/DC-DC CONVERTER TROUBLESHOOTINGMSB-11E54_55-501
2011-02-20AIR CONDITIONER AND ON BOARD CHARGER/DC-DC CONVERTER TROUBLESHOOTINGMSB-11E54_55-502

Code No. B1041: A/M damper potentiometer High
Code No. B1042: A/M damper potentiometer Low








DIAGNOSIS CODE SET CONDITIONS


These codes are set when there is no input from the air mixing damper control motor and potentiometer because of short to power supply or open circuit (code No. B1041), or short to earth or open circuit (code No. B1042) in the air mixing damper control motor and potentiometer circuit.

PROBABLE CAUSES



DIAGNOSIS PROCEDURE

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

  • Item 63: A/M potentiometer

Q. Is the check result normal?
Go to Step 5.
Go to Step 2.

STEP2. Connector check: B-17 air mixing damper control motor and potentiometer connector, B-09 A/C-ECU connector

Q. Is the check result normal?
Go to Step 3.
Repair the damaged connector.

STEP 3. Check the wiring harness between B-17 air mixing damper control motor and potentiometer connector terminal No. 7, 3, 5 and B-09 A/C-ECU connector terminal No. 34, 32, 38.

  • Check the sensor power supply, sensor earth and signal line for open or short circuit.

Q. Is the check result normal?
Go to Step 4.
Repair the wiring harness.

STEP 4. Check the air mixing damper control motor and potentiometer.
Refer to .

Q. Is the check result normal?
Go to Step 5.
Replace the air mix damper motor and potentiometer.

STEP 5. Check whether the diagnosis code is reset.

Q. Is the diagnosis code set?
Replace the A/C-ECU.
Intermittent malfunction. Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points, - How to Cope with Intermittent Malfunctions .)




Yandex.Metrika
MMC-Manuals.ru