DTC P0736 Reverse Incorrect Ratio
WARNING: This page is about a different variant/trim than selected.
DTC DETECTING CONDITION:
Target gear ratio and actual gear ratio do not match.
TROUBLE SYMPTOM:
- Shift point is too high or too low.
- Excessive shift shock.
- Gear is not changed.
- The vehicle does not move in D or R range with the engine running at high speed.
DIAGNOSTIC PROCEDURE
| Step | Check | Yes | No |
|---|---|---|---|
| 1 CHECK DTC OF TCM. | Is any DTC of the followings detected? P0715, P0720, P0753, P0758, P0763, P0768, P0773, P0751, P0756, P0761, P0766, P0771, P1706, P1710, P1798, P1799 | Perform the diagnosis according to DTC. | Go to step 2. |
2 CHECK TURBINE SPEED SENSOR USING SUBARU SELECT MONITOR.
NOTE:
The speed difference between front and rear wheels may light the ABS warning light, but this does not indicate a malfunction. When AT control diagnosis is finished, perform the VDC memory clearance procedure of on-board diagnostics system. < Ref. to
CLEAR MEMORY MODE
, OPERATION, Subaru Select Monitor. >
|
Does the displayed value of the Subaru Select Monitor change according to engine speed and shifting? | Go to step 3. | Perform the diagnosis according to DTC P0715, P1710. |
| 3 CHECK FRONT AND REAR VEHICLE SPEED SENSORS. | Do the values displayed for each of the Subaru Select Monitor and the speedometer substantially match? | Go to step 4. | Perform the diagnosis according to DTC P0720, P1706. |
| 4 CHECK INHIBITOR SWITCH. | Do the values displayed for the Subaru Select Monitor and the meter indicator match? | Go to step 5. | Perform the diagnosis according to DTC P0705. |
5 DRIVING CHECK.
|
Is DTC displayed again? | Check the DTC. Then, when proceeded again to step 5, Go to step 6. | Go to step 6. |
| 6 CHECK AFTER REPAIR. | Is the trouble symptom in repairable (malfunction in shifting such as excessive shift shock, engine speed increases excessively when shifting)? | Replace the transmission assembly. | Temporary poor contact occurs. Check that the harness connector is not faulty. |