Code No. P0826: Malfunction of Shift Switch Assembly








DIAGNOSTIC FUNCTION


CVT-ECU detects the UP/DOWN operation of the shift switch assembly. CVT-ECU determines that the malfunction is present if the abnormal value is input.

JUDGMENT CRITERIA


Input to the shift switch assembly remains abnormal for 1 second.

PROBABLE CAUSES



DIAGNOSTIC PROCEDURE

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

  • Item 52: Select SW (UP)
  • Item 53: Select SW (DOWN) (Refer to Service Data Reference Table .)

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

STEP 2. Check shift switch assembly
Refer to .

Q. Is the check result normal?
Go to Step 3.
Replace the selector lever assembly.

STEP 3. Check the following connector:

  • C-33 CVT-ECU connector
  • C-20 selector lever assembly connector
Check the terminals for a contact status problem and internal short circuit.

Q. Is the check result normal?
Go to Step 4.
Repair the defective connector.

STEP 4. Check for open circuit and short to earth in the wiring harness between the CVT-ECU connector and the selector lever assembly.

  • Between C-33 CVT-ECU connector (terminal No. 35) and C-20 selector lever assembly connector (terminal No. 8)
  • Between C-33 CVT-ECU connector (terminal No. 43) and C-20 selector lever assembly connector (terminal No. 10)
  • Between C-33 CVT-ECU connector (terminal No. 44) and C-20 selector lever assembly connector (terminal No. 9)

Q. Is the check result normal?
Go to Step 5.
Repair the wiring harness.

STEP 5. Check for open circuit in the wiring harness between the selector lever assembly connector and the body earth
Between C-20 selector lever assembly connector (terminal No. 7) and body earth

Q. Is the check result normal?
Go to Step 6.
Repair the wiring harness.

STEP 6. Symptom recheck after erasing diagnosis code

Q. Is the check result normal?
Intermittent malfunction
Replace CVT-ECU.