97 grandprix code p0705 no check engine lamp on, but 1-2 gear shift is exteneded, ... PL;US DATA SHOWS OPEN OR SHORTED 1-2 SHIFT SEL;??? PLEASE HELP GM GUYS ..IM A CHRYSLER TECH ..NEED FLOW CHARTOR?

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 .

Possible causes Faulty Park/Neutral Position Switch Misadjusted Park/Neutral Position Switch Park/Neutral Position Switch harness is open or shorted Park/Neutral Position Switch circuit poor electrical connection What does this mean? When is the code detected? The transmission range switch detects the selector lever position and sends a signal to the TCM. Possible symptoms Engine Light ON (or Service Engine Soon Warning Light) P0705 MERCEDES-BENZ Description The park/neutral position (PNP) switch includes a transmission range switch. The transmission range switch detects the selector lever position when the shift lever is in the N or P shift position and sends a signal to the Transmission Control Module (TCM).

I just answered a P705 question that may be connected to this.
But I will add that usually transmission codes will not turn on a check engine light. The reason is the check engine light is to warn the driver that something has happened that could damage the cat converter or cause major problems with emissions.

EOBD II Error Code: P0705
Fault Location:
Multi-Function Transmission Range Switch - Malfunction (PRNDL Input) - Implausible Signal
Possible Cause:
Wiring/Connectors from/to Multi-Function Switch faulty.
Multi-Function Switch faulty.
Engine control module (ECM)/Powertrain control module (PCM)/Transmission control module.

Possible Solutions:
Check Wiring/Connectors from/to Multi-Function Switch.
Check Multi-Function Switch.
Check Measuring Value Blocks.

What do you mean "can't find code"? If the check engine light is on, there is a fault code stored in your onboard computer - that's the way it works. If you are using a generic OBD code reader, that is most likely the reason you cannot find any codes. You need to use a scanner that has the correct software to access your ENTIRE computer network, not just the "continuous memory" or "generic" side of your computer system.

The window problem is a seperate problem and must be diagnosed accordingly.

If you tell me which engine you have, I can also provide the code list.
1989-95 MODELS

1. Make sure the battery voltage is at least 11 volts.
2. Make sure the throttle valve is fully closed.
3. Place the gear shift lever in Neutral. Turn all accessories off.
4. The engine should be at normal operating temperature.
5. Using a jumper wire, connect terminals TE1 and E1 of the Data Link Connector 1 (DLC1).
6. Turn the ignition switch ON , but do not start the engine. Read the diagnostic code by the counting the number of flashes of the malfunction indicator lamp.
7. Codes will flash in numerical order. If no faults are stored, the lamp flashes continuously every 1 / 2 second. This is sometimes called the Normal or System Clear signal.
8. After the diagnosis check, turn the ignition OFF and remove the jumper wire.
9. Compare the codes found to the applicable diagnostic code chart. If necessary, refer to the individual component tests in this section. If the component tests are OK, test the wire harness and connectors for shorts, opens and poor connections.

P0705 Transmission Range Sensor Circuit Malfunction

You haven't revealed the Hyundai Model, nor Year??

Here's info from the latest technical service bulletin:

This TSB supersedes TSB 03-40-013 to add repair information (Steps 2~3).

DESCRIPTION:

An improperly adjusted or improperly operating range switch may result in the following conditions:

• Diagnostic trouble codes:

• P0705 - Range switch signal problem

• P0707 - Range switch - open circuit

• P0708 - Range switch - short circuit or multiple inputs

• Malfunction Indicator Light (MIL) illuminated

• Impossible engine start in "P" or "N"

This TSB provides information concerning the proper adjustment and diagnosis of the transaxle range switch.

REPAIR PROCEDURE:

1. Attach a GDS and check for DTC in both the "Engine" and "Automatic Transaxle" menus. Go to Step 2 for 2000~02 Accent or Step 3 for 2006~ Sonata. For other vehicles, go to Step 4.

2. For 2000~2002 Accent: Check according to TSB 03-40-001. Go to Step 4.

3. For 2006~ Sonata, follow steps a,b,c below, then go to Step 4.

a. Check the rear combination lamp ground bolts for tightness and good electrical contact (refer to applicable ETM, "Tail, Parking & License Lamps" section). Go to Step b.Page 2 of 6

b. For 2006~ Sonata: Remove the center console cover and check for contamination on the M40 connector to the sports mode switch. If so, clean and repair the connector as necessary. Go to step c below.

c. For 2006~07 Sonata: Remove the front pillar cover and verify the harness is properly routed near the clip. Repair the harness as necessary. Go to Step 4.

4. Attach a GDS and select vehicle, "A/T" menu, "Current Data" and "Shift Lever Switch".

5. Move the shift lever and confirm the GDS reads the gear shift position as shown below. If so, the harness currently does not have an open or short circuit between. the PCM/TCM and range switch.

Hope this helps.

DTC P0708 - Transmission Range Sensor Circuit High Input

Check your transmission range sensor. There is a connector located where the cable attaches to the tranny on the back (firewall side). Be sure its connected and seated properly.

From what I understand the "range sensor" is basically the Input Turbine Speed Sensor. Be sure the connector for this is also clean. This code is also set by the Nuetral Safety switch. Check the switch with a multi meter to be sure its working properly.

Also, check your Engine Coolant Temperature Sensor. This sensor is used by the PCM to help control tranny operations.

Also, can check this additional information for 1998 Saturn SL1...

DTC P0706
The PCM determines which gear is selected by a combination of opens and grounds in circuits 771, 772, and 773 at the transaxle park/neutral
position switch. Each combination indicates a specific selection on the
manual shift quadrant, P, R, N, D, 2, or 3. Circuit 776 is either open
or grounded to produce an even number of grounded circuits, 771, 772,
773, and 776. Invalid data indicates that the sum of the grounded
circuits 771, 772, 773, and 776, in 1 of the manual shift quadrants is
equal to an odd number.

Conditions for Setting the DTC
DTC P0706 is set when the PCM has detected an invalid bit pattern for
more than 3.5 seconds, twice per ignition cycle.

The difference between DTC P0706 and DTC P0705 is that a possible bit pattern error due to misadjustment could set a DTC P0706.

Test Description
1. This step verifies the conditions for DTC P0706 still exist.
2. If the shift cable or switch is misadjusted, a DTC P0706 may set
while in certain gear shift positions.
3. DTC P0706 may set due to 1 or more circuits being shorted to
ground. By disconnecting the switch, the PCM should read all circuits as high and the scan tool should display OPEN.
4. This step will isolate an open circuit. As each individual circuit
is grounded, the PCM/TCM should see the low signal and the tool should display INVALID.
5. The PCM/TCM supplies a 12 volt signal to each transaxle park/neutral position switch circuit. This step tests for that voltage.
6. DTC P0706 may have been set due to 1 of the circuits being shorted
to voltage. This step verifies if a short to voltage exists.

Repair Verification
Monitor DTC menu Code Status for Pass Since Code Clear and Pass This Ignition Cycle. When both have passed, the repair is verified.

Criteria for pass:
* No active DTC set.
* Two valid selector positions are decoded. You must move the
shifter to obtain a pass.

Diagnostic Aids
When the PCM detects a fault in the circuit, an open, ground, or short,
the PCM will open the circuit internally to protect the circuit.

If no circuit problems can be detected, check the shift cable and switch
adjustment.

Important
Refer to the chart from DTC P0705.

This DTC will cause the transaxle to start out in 2nd gear.

Hope helps (remember rated this).

OBD Code P1750 = Solenoid Assembly / Manufacturer Control Transmission.

I tell you it is infact your solenoid box assemble is going. What that does is to tell your transmission when to shift into gears. Im assuming your car is having a hard time shifting gears and juts need replace this part.


OBD Code P0705 = Transmission Range Sensor circuit (PRNDL - Input).

I'll check the Neutral Safety Switch. It's located on the shift shaft of the trans, and is a common problem. Also check the wiring leading to the switch, as it is exposed to road grime and has been known to corrode and melt.

Also can review this DTC P0705.

Hope helps.

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.