Check tr light just came on - 2004 Infiniti FX35

A short circuit in the wiring . Do you you know how to test automotive electrical circuits ?
10 amp backup fuse ?????? back up lights ? Video's on youtube showing how to find an fix a short . Park neutral safety switch
The transaxle control module (TCM) primarily controls shift points and lockup engagement.
The transaxle is controlled by an electronic shift system. The TCM processes input signals. From the information received, the TCM controls the transaxle hydraulic system.
The electronic shift system consists of the following components:
• TCM
• Shift Solenoid (SS1 and SS2)
• Pressure Control Solenoid (PSC)
• Lockup Solenoid
• Input Shaft Speed (ISS) Sensor
• Output Shaft Speed (OSS) Sensor
• Transmission Fluid Temperature (TFT) Sensor
• Park/Neutral Position (PNP) Switch

Have the vehicle checked for DTC'S - diagnostic trouble codes
When the TCM detects an invalid combination of TR switch signals, then DTC P0705 sets. DTC P0705 is a type A DTC.

BACKUP Fuse
10A
PNP Switch



The transmission range (TR) switch is part of the park/neutral position and back-up lamp switch assembly and is mounted on the transmission manual shaft. The TR switch is a multi-signal switch. The transmission control module (TCM) supplies voltage to the TR switch. Each gear selector lever position grounds one or more of the signal circuits in a unique pattern. In order to determine the gear range selected by the driver, the TCM compares the voltage combination on the signal circuits to a TR switch combination table stored in memory. Refer to Transmission Range Switch Logic .

code p 0735 refers to gear 5--incorrect ratio====causes ---wiring---TR sensor /switch---shift solenoid--transmission mechanical fault
replace the TR switch /sensor

code p 0705 refers to transmission range (TR) sensor /switch, PRNDL, input--circuit malfunction=== causes ---wiring---TR sensor / switch---ECM/TCM
If you are a chrysler tech why are you not referring to the work shop manual and the fault code book
check engine light (MIL) on many vehicle only come on for the more serious and costly reports

code p0708 refers to transmission range (TR) switch/sensor--high input===causes --wiring short to positive--TR switch/ sensor--ECM/TCM

replace the TR sensor /switch first and then check the TCM for operation

code p0705 refers to transmission range(TR)sensor/switch--PRNDL input--circuit malfunction===causes--wiring--TR sensor/switch---ECM/TCM
I would have the TR sensor/switch checked out first and then the TCM module.

DTC P0705 - Transmission Range (TR) switch circuit malfunction (short to power supply)

DETECTION CONDITION
• Two or more range signals are input from the TR switch for 12 s or more.

Diagnostic support note:
• This is a continuous monitor (CCM).
• MIL illuminates if TCM detects the above malfunction condition in two consecutive drive cycles.
• PENDING CODE is available.
• FREEZE FRAME DATA is available.
• AT warning light illuminates.
• DTC is stored in TCM memory.

POSSIBLE CAUSE
• TCM malfunction
• Short to power supply in wiring harness between TR switch terminal A and TCM terminal 1D
• Short to power supply in wiring harness between TR switch terminal E and TCM terminal 2C
• Short to power supply in wiring harness between TR switch terminal D and TCM terminal 2B
• Short to power supply in wiring harness between TR switch terminal G and TCM terminal 2E
• Damaged connector between TR switch and TCM
• TR switch malfunction


Inspect swtich harnesses and test with OBD scanner reader tool.

Transmission distance sensor ?????? P0707 Transmission Range Sensor A Circuit Low Input Transmission Control Module - AISIN Transmission REFER to Section 307-01B .
My problem is the RMP goes in high,???? RPM P0707 TR sensor TR sensor circuit low input TR sensor signal is below threshold of 0.127 volts, sensor/circuit electrical malfunction TR sensor indicates a stuck position (D-3rd gear), no adaptive or self learning strategy. Install a new TCM.
Your best bet ,take your vehicle to a ford dealer .

here on top of the transmission:


Fig. Fig. 1: Remove the two TR sensor retaining bolts

Fig. Fig. 2: Align the TR sensor slots using TR sensor alignment tool T92-70010-AH or equivalent

1. Disconnect the negative battery cable.
2. Place the shift selector into NEUTRAL .
3. Remove the air cleaner outlet tube and the air cleaner housing from the vehicle.
4. Detach the electrical connector from the TR sensor.
5. Remove the retaining nut and detach the manual control lever from the TR sensor.
6. Remove the two TR sensor retaining bolts and remove the TR sensor from the transaxle.

To install:

1. Make sure that the shift selector is in NEUTRAL .
2. Place the TR sensor onto the transaxle and loosely install the retaining bolts.
3. Align the TR sensor slots using TR sensor alignment tool T92-70010-AH or equivalent.
4. Tighten the TR sensor retaining bolts to 80-106 inch lbs. (9-12 Nm).
5. Attach the electrical connector to the TR sensor.
6. Attach the manual control lever to the TR sensor and tighten the nut to 98-141 inch lbs. (11-16 Nm).
7. Install the air cleaner housing and the outlet tube.
8. Connect the negative battery cable.
9. Verify that the engine will only start in NEUTRAL or PARK

Yup, if you scanned your engine computer and you got a code P0705, you can bet that's why your Check Engine light is on.

P0705, however, is NOT a Vehicle Speed Sensor code on this vehicle. It is a Digital Transmission Range Sensor code. It is caused by an open or shorted circuit in the TR-1, TR-2, TR-3a or TR-4 circuits. This code CANNOT be set by an incorrectly adjusted TR Sensor.