Nissan Murano: Dtc/circuit Diagnosis / P0826 up and Down Shift Sw

Nissan Murano (Z52) 2015-2024 Service Manual / Transmission & Driveline / Transaxle & Transmission :: Cvt: Re0f10j / Dtc/circuit Diagnosis / P0826 up and Down Shift Sw

DTC Description

DTC DETECTION LOGIC

DTC

CONSULT screen terms

(Trouble diagnosis content) 		DTC detection condition
P0826

UP/DOWN SHIFT SWITCH

(Up and Down Shift Switch Circuit) 		Diagnosis condition Engine is started
Signal —
Threshold TCM monitors manual mode, non-manual mode, up or down switch signal, and detects as irregular when impossible input pattern occurs
Diagnosis delay time 1 second or more

POSSIBLE CAUSE

  • Manual mode switch

  • Harness or connectors

    (Manual mode switch circuit are open or shorted.)

FAIL-SAFE

Manual mode is not activated

DTC Confirmation Procedure

PREPARATION BEFORE WORK

If another “DTC CONFIRMATION PROCEDURE” occurs just before, turn ignition switch OFF and wait for at least 10 seconds, then perform the next test.

>>

GO TO 2.

CHECK DTC DETECTION (PART 1)

With CONSULT

  1. Start the engine.

  2. Shift the selector lever to “D” position and wait for 1 second or more.

  3. Select “Self Diagnostic Results” in “TRANSMISSION”.

Is “P0826” detected?

YES>>

Go to Diagnosis Procedure.

NO>>

GO TO 3.

CHECK DTC DETECTION (PART 2)

With CONSULT

  1. Shift the selector lever to manual shift gate and wait for 1 second or more.

  2. Select “Self Diagnostic Results” in “TRANSMISSION”.

Is “P0826” detected?

YES>>

Go to Diagnosis Procedure.

NO>>

GO TO 4.

CHECK DTC DETECTION (PART 3)

With CONSULT

  1. Shift the selector lever to “UP side (+ side)” and wait for 1 second or more.

  2. Select “Self Diagnostic Results” in “TRANSMISSION”.

Is “P0826” detected?

YES>>

Go to Diagnosis Procedure.

NO>>

GO TO 5.

CHECK DTC DETECTION (PART 4)

With CONSULT

  1. Shift the selector lever to “DOWN side (− side)” and wait for 1 second or more.

  2. Select “Self Diagnostic Results” in “TRANSMISSION”.

Is “P0826” detected?

YES>>

Go to Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

Diagnosis Procedure

CHECK DTC (COMBINATION METER)

With CONSULT

  1. Turn ignition switch ON.

  2. Select “Self Diagnostic Results” in “METER/M&A”.

Is any DTC detected?

YES>>

Check DTC detected item. Refer to DTC Index.

NO>>

GO TO 2.

CHECK MANUAL MODE SWITCH POWER SUPPLY CIRCUIT

  1. Turn ignition switch OFF.

  2. Disconnect CVT shift selector connector.

  3. Turn ignition switch ON.

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

    + – Condition

    Voltage

    (Approx.)
    CVT shift selector
    Connector Terminal
    M78 7 Ground Ignition switch: ON 12 V
    Ignition switch: OFF 0 V
    8 Ignition switch: ON 12 V
    Ignition switch: OFF 0 V
    9 Ignition switch: ON 12 V
    Ignition switch: OFF 0 V
    10 Ignition switch: ON 12 V
    Ignition switch: OFF 0 V

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

GO TO 4.

CHECK MANUAL MODE SWITCH

  1. Turn ignition switch OFF.

  2. Check manual mode switch. Refer to Component Inspection.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair or replace damaged parts.

CHECK CIRCUIT BETWEEN CVT SHIFT SELECTOR AND COMBINATION METER

  1. Turn ignition switch OFF.

  2. Disconnect combination meter connector.

  3. Check continuity between CVT shift selector harness connector terminals and combination meter harness connector terminals.

    CVT shift selector Combination meter Continuity
    Connector Terminal Connector Terminal
    M78 7 M23 30 Existed
    8 33
    9 32
    10 31

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

    CVT shift selector — Continuity
    Connector Terminal
    M78 7 Ground Not existed
    8
    9
    10

Is the inspection result normal?

YES>>

Check intermittent incident. Refer to Intermittent Incident.

NO>>

Repair or replace damaged parts.

CHECK GROUND CIRCUIT

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

CVT shift selector — Continuity
Connector Terminal
M78 11 Ground Existed

Is the inspection result normal?

YES>>

Check intermittent incident. Refer to Intermittent Incident.

NO>>

Repair or replace damaged parts.

Component Inspection

MANUAL MODE SWITCH

Check continuity between CVT shift selector connector terminals.

CVT shift selector Condition Continuity
Terminal
7 – 11 Manual shift gate position (neutral) Existed
Other than the above Not existed
8 – 11 Selector lever: DOWN (− side) Existed
Other than the above Not existed
9 – 11 Selector lever: UP (+ side) Existed
Other than the above Not existed
10 – 11 Manual shift gate position Not existed
Other than the above Existed

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace the CVT shift selector assembly due to malfunction in manual mode switch. Refer to Removal and Installation.

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