Infiniti FX35, FX50 (S51). Manual - part 1874

SHIFT POSITION INDICATOR CIRCUIT

TM-303

< DTC/CIRCUIT DIAGNOSIS >

[7AT: RE7R01B (VK50VE)]

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SHIFT POSITION INDICATOR CIRCUIT

Description

INFOID:0000000005250317

TCM transmit the switch signals to unified meter and A/C amp. by CAN communication line. Then manual
mode switch position is indicated on the shift position indicator.

Component Function Check

INFOID:0000000005250318

1.

CHECK A/T INDICATOR 

1.

Start the engine.

2.

Check the actual selector lever position (“P”, “R”, “N” and “D”) and the indication of the shift position indi-
cator mutually coincide.

3.

Drive vehicle in the manual mode, and then check that the actual gear position and the indication of the
position indicator mutually coincide when the selector lever is shifted to “UP (+ side)” or “DOWN (

−

 side)”

side (1GR 

⇔

 7GR).

 Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Go to 

TM-303, "Diagnosis Procedure"

.

Diagnosis Procedure

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1.

CHECK INPUT SIGNALS 

 With CONSULT-III

1.

Start the engine.

2.

Select “SLCT LVR POSI” in “Data Monitor” in “TRANSMISSION”.

3.

Check the actual selector lever position (“P”, “R”, “N” and “D”) and the indication of the “SLCT LVR POSI”
mutually coincide. Refer to 

TM-315, "Reference Value"

.

4.

Drive vehicle in the manual mode, and then check that the actual gear position and the indication of the
“SLCT LVR POSI” mutually coincide when the selector lever is shifted to the “UP (+ side)” or “DOWN (

−

side)” side (1GR 

⇔

 7GR). Refer to 

TM-315, "Reference Value"

.

 Is the inspection result normal?

YES

>> INSPECTION END

NO-1 [The actual gear position does not change, or shifting into the manual mode is not possible (no gear
shifting in the manual mode possible). Or the shift position indicator is not indicated.]>>•Check 

manual

mode switch. Refer to 

TM-294, "Component Inspection (Manual Mode Switch)"

.

• Check A/T main system (Fail-safe function actuated). 
- Perform “Self Diagnostic Results” mode for “TRANSMISSION”. Refer to 

TM-332, "DTC Index"

.

NO-2 (The actual gear position changes, but the shift position indicator is not indicated.)>>•Perform 

“Self

Diagnostic Results” mode for “TRANSMISSION”. Refer to 

TM-332, "DTC Index"

.

NO-3 (The actual gear position and the indication on the shift position indicator do not coincide.)>>•Perform

“Self Diagnostic Results” mode for “TRANSMISSION”. Refer to 

TM-332, "DTC Index"

.

NO-4 (Only a specific position or positions is/are not indicated on the shift position indicator.)>>•Check 

the

unified meter and A/C amp. Refer to 

MWI-4, "Work flow"

.

TM-304

< DTC/CIRCUIT DIAGNOSIS >

[7AT: RE7R01B (VK50VE)]

SHIFT LOCK SYSTEM

SHIFT LOCK SYSTEM

Description

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Refer to 

TM-240, "System Description"

.

Wiring Diagram - A/T SHIFT LOCK SYSTEM -

INFOID:0000000005530873

JCDWA0565GB

SHIFT LOCK SYSTEM

TM-305

< DTC/CIRCUIT DIAGNOSIS >

[7AT: RE7R01B (VK50VE)]

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JCDWA0566GB

TM-306

< DTC/CIRCUIT DIAGNOSIS >

[7AT: RE7R01B (VK50VE)]

SHIFT LOCK SYSTEM

Component Function Check

INFOID:0000000005530874

1.

CHECK A/T SHIFT LOCK OPERATION (PART 1)

1.

Turn ignition switch ON.

2.

Shift the selector lever to “P” position.

3.

Attempt to shift the selector lever to any other position with the brake pedal released.

Can the selector lever be shifted to any other position?

JCDWA0567GB