Code No. P071B Malfunction of Ds position switch <Vehicles without paddle shift>
DIAGNOSTIC FUNCTION
JUDGMENT CRITERIA
PROBABLE CAUSES
- Malfunction of Ds position switch
- Damaged wiring harness and connectors
- Malfunction of CVT-ECU
DIAGNOSTIC PROCEDURE |
STEP 1. M.U.T.-III data list |
| Item 51: Ds position switch |
| OK: Turns ON when the selector lever is at "Ds" or "L". |
Q.
Is the check result normal?
|
 Intermittent malfunction |
|
 Go to Step 2. |
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STEP 2. Ds position switch single unit check |
Refer to  . |
Q.
Is the check result normal?
|
| Go to Step 3. |
|
| Replace the selector lever assembly. |
|
STEP 3. Check for short to earth in INHS line between the CVT-ECU connector and the Ds position switch connector |
Q.
Is the check result normal?
|
| Go to Step 4. |
|
| Repair the connector(s) or wiring harness. |
|
STEP 4. Check for open circuit in earth line between the Ds position switch connector and body earth. |
Q.
Is the check result normal?
|
| Go to Step 5. |
|
| Repair the connector(s) or wiring harness. |
|
STEP 5. Symptom recheck after erasing diagnosis code |
Q.
Is the check result normal?
|
| Intermittent malfunction |
|
| Replace CVT-ECU. |
|