Code No.P1796: Idle Neutral Control Function Failure <Vehicles with Idle Neutral Control> - Outlander 2014 Workshop Manual
Code No.P1796: Idle Neutral Control Function Failure <Vehicles with Idle Neutral Control>
DIAGNOSTIC FUNCTION
CVT-ECU determines if the idle neutral control is operating normally.
JUDGMENT CRITERIA
If the following condition is met during idle neutral control.
- [(Difference between the engine speed and the turbine speed) - Target
slip speed] is greater than 300 r/min for 10 seconds.
PROBABLE CAUSES
- Malfunction of turbine speed sensor
- Damaged wiring harness and connectors
- Malfunction of forward clutch
DIAGNOSTIC PROCEDURE |
STEP 1. Check other diagnosis codes. |
Q.
Are other diagnosis codes set?
|
 Carry out the appropriate troubleshooting. |
|
 Go to Step 2. |
|
STEP 2. Check for open circuit and short to earth in SSPW, TRBS line between the CVT assembly connector and the CVT-ECU connector. |
Q.
Is the check result normal?
|
| Go to Step 3. |
|
| Repair the connector(s) or wiring harness. |
|
STEP 3. Check for open circuit in SGND line between the CVT assembly connector and the CVT-ECU connector. |
Q.
Is the check result normal?
|
| Go to Step 4. |
|
| Repair the connector(s) or wiring harness. |
|
STEP 4. Diagnosis code recheck |
Q.
Is the diagnosis code set?
|
| Go to Step 5. |
|
| Intermittent malfunction. |
|
STEP 5. Turbine speed sensor check |
| Disassemble the CVT and visually check the tip of the sensor for foreign materials or
damage. |
Q.
Is the check result normal?
|
| Go to Step 6. |
|
| Repair or replace. |
|
STEP 6. Check for open circuit or short to earth in wiring harness between the CVT assembly connector and the turbine speed sensor connector. |
Q.
Is the check result normal?
|
| Go to Step 7. |
|
| Replace the valve body harness. |
|
STEP 7.Forward clutch check |
| Check for facing scorching, failed piston seal rings, retainer interference, etc. |
Q.
Is the check result normal?
|
| Replace the turbine speed sensor. |
|
| Repair or replace the forward clutch. |
|