Nissan Maxima Service and Repair Manual: P0826 up and down shift SW

Description

Manual mode switch transmits signals (manual mode, not manual mode, shift up and shift down) to combination meter.

Paddle shifter transmits signals (shift up and shift down) to combination meter. (With paddle shifter) Combination meter transmits signals (manual mode, not manual mode, shift up and shift down) to TCM with CAN communication signal.

DTC 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

  1.  Turn ignition switch ON.
  2.  Select "Data Monitor" in "TRANSMISSION".
  3.  Drive vehicle and maintain the following conditions for at least 2 consecutive seconds.

MMODE : On

Diagnosis Procedure

Regarding Wiring Diagram information, refer to TM-126, "Wiring Diagram".

1.CHECK MANUAL MODE SWITCH SIGNALS

With CONSULT

  1.  Turn ignition switch ON.
  2.  Select "Data Monitor" in "TRANSMISSION".
  3.  Check the On/Off operations of each monitor item.

Without CONSULT

Drive vehicle in the manual mode, and confirm that the actual gear position and the meter's indication of the position mutually coincide when the selector lever and paddle shifter* are shifted to the "+ (up)" or "− (down)" side (1st ⇔ 6th gear).

*: With paddle shifter

2.CHECK MANUAL MODE SWITCH

  1.  Turn ignition switch OFF.
  2.  Disconnect CVT shift selector connector.
  3.  Check manual mode switch. Refer to TM-83, "Component Inspection (Manual Mode Switch)".

3.CHECK GROUND CIRCUIT (PART 1)

Check continuity between CVT shift selector vehicle side harness connector terminal and ground.

4.CHECK GROUND CIRCUIT (PART 2)

Check voltage between CVT shift selector vehicle side harness connector terminal and ground.

5.CHECK HARNESS BETWEEN CVT SHIFT SELECTOR AND COMBINATION METER (PART 1)

  1.  Disconnect combination meter connector.
  2.  Check continuity between CVT shift selector vehicle side harness connector terminals and combination meter vehicle side harness connector terminals.

6.CHECK HARNESS BETWEEN CVT SHIFT SELECTOR AND COMBINATION METER (PART 2)

Check continuity between CVT shift selector vehicle side harness connector terminals and ground.

7.CHECK PADDLE SHIFTER

  1.  Turn ignition switch OFF.
  2.  Disconnect paddle shifter connector.
  3.  Turn ignition switch ON.
  4.  Check voltage between paddle shifter side harness connector terminals.

8.CHECK PADDLE SHIFTER

Check paddle shifter. Refer to TM-84, "Component Inspection (Paddle Shifter)".

9.CHECK GROUND CIRCUIT

Check continuity between paddle shifter vehicle side harness connector terminal and ground.

10.CHECK POWER SOURCE CIRCUIT

Check voltage between paddle shifter vehicle side harness connector terminal and ground.

11.CHECK HARNESS BETWEEN PADDLE SHIFTER AND COMBINATION METER (PART 1)

  1.  Disconnect combination meter connector.
  2.  Check continuity between paddle shifter vehicle side harness connector terminals and combination meter vehicle side harness connector terminals.

12.CHECK HARNESS BETWEEN PADDLE SHIFTER AND COMBINATION METER (PART 2)

Check continuity between paddle shifter vehicle side harness connector terminals and ground.

13.DETECT MALFUNCTIONING ITEMS

Check TCM connector pin terminals for damage or loose connection with harness connector.

Component Inspection (Manual Mode Switch)

1.CHECK MANUAL MODE SWITCH

Check continuity between CVT shift selector connector terminals.

Component Inspection (Paddle Shifter)

1.CHECK PADDLE SHIFTER

Check continuity between paddle shifter connector terminals.

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