P1815

P1815 M-MODE SWITCH





Description
Manual mode switch is installed in control device assembly. It transmits manual mode switch, shift up and shift down switch signals to unified meter and A/C amp. Then unified meter and A/C amp. transmits signals to TCM with CAN communication.
TCM transmits the switch signals to unified meter and A/C amp. by CAN communication line. Then manual mode switch position is indicated on the A/T indicator. For inspection, refer to Diagnosis Procedure Component Function Check Diagnosis Procedure.




DTC Logic

DTC DETECTION LOGIC

DTC DETECTION LOGIC:

DTC CONFIRMATION PROCEDURE

CAUTION:
Always drive vehicle at a safe speed.

NOTE:
If "DTC CONFIRMATION PROCEDURE" has been previously performed, always turn ignition switch
OFF. Then wait at least 10 seconds before performing the next test.
1.CHECK DTC DETECTION
With CONSULT-III
1. Start the engine.
2. Select "Data Monitor" in "TRANSMISSION".
3. Drive vehicle and maintain the following conditions for at least 2 consecutive seconds.

MANU MODE SW : ON

Is "P1815" detected?
YES - Go to P1815.
NO - Check intermittent incident. Refer to Intermittent Incident.




Diagnosis Procedure
1.CHECK MANUAL MODE SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect A/T shift selector connector.
3. Turn ignition switch ON.
4. Check voltage between A/T shift selector vehicle side harness connector terminals.





Is the inspection result normal?
YES - GO TO 2.
NO - GO TO 4.
2.CHECK MANUAL MODE SWITCH
Check manual mode switch. Refer to P1815.
Is the inspection result normal?
YES - GO TO 3.
NO - Repair or replace damaged parts.
3.CHECK MALFUNCTIONING ITEM
Check the following.
- Check terminals of A/T shift selector harness connector and harness cladding for damage.
- Check connector for loose connection.
Is the inspection result normal?
YES - GO TO 8.
NO - Repair or replace damaged parts.
4.CHECK GROUND CIRCUIT
Check continuity between A/T shift selector vehicle side harness connector terminal and ground.





Is the inspection result normal?
YES - GO TO 5.
NO - Repair or replace damaged parts.
5.CHECK HARNESS BETWEEN A/T SHIFT SELECTOR AND UNIFIED METER AND A/C AMP. (PART 1)
1. Turn ignition switch OFF.
2. Disconnect unified meter and A/C amp. connector.
3. Check continuity between A/T shift selector vehicle side harness connector terminals and unified meter and A/C amp. vehicle side harness connector terminals.





Is the inspection result normal?
YES - GO TO 6.
NO - Repair or replace damaged parts.
6.CHECK HARNESS BETWEEN A/T SHIFT SELECTOR AND UNIFIED METER AND A/C AMP. (PART 2)
Check continuity between A/T shift selector vehicle side harness connector terminals and ground.





Is the inspection result normal?
YES - GO TO 7.
NO - Repair or replace damaged parts.
7.CHECK MALFUNCTIONING ITEM
Check the following.
- Check terminals of unified meter and A/C amp. connector for damage.
- Check connector for loose connection.
Is the inspection result normal?
YES - GO TO 8.
NO - Repair or replace damaged parts.
8.CHECK UNIFIED METER AND A/C AMP.
1. Reconnect all the connectors.
2. Turn ignition switch ON.
3. Select "M RANGE SW", "NM RANGE SW", "AT SFT UP SW" and "AT SFT DWN SW" in "Data Monitor" in "METER/M&A", and check the On/Off operations of each monitor item. Refer to Unified Meter and A/C AMP..
Is the inspection result normal?
YES - GO TO 9.
NO - Replace unified meter and A/C amp. Refer to Exploded View.
9.CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to Main Power Supply and Ground Circuit.
Is the inspection result normal?
YES - Replace the control valve with TCM. Refer to Exploded View.
NO - Repair or replace damaged parts.




Component Inspection (Manual Mode Switch)
1.CHECK MANUAL MODE SWITCH
Check continuity between terminals.





Is the inspection result normal?
YES - INSPECTION END
NO - Repair or replace damaged parts. Refer to (2WD), Exploded View (AWD).