I drive a '96 saturn sl1, 112k miles, just got an oil change. I went
to autozone because my service engine soon light was on. The trouble
code PO706 came up which was "Transmission range sensor circuit
range/performance." The guys at autozone had never seen that before,
and there is little to no information on the internet regarding that.
Does anyone know exactly what I need to fix?

In article <1124424032.126863.296420 (AT) g44g2000cwa (DOT) googlegroups.com>,
murtle (AT) wideopenwest (DOT) com says...
For future reference the code is P-Zero-706 not "o".

Here is information on this code minus the pics:
-------------------------------
1998 Saturn SL1

DTC P0706
Circuit Description

Object Number: 902195 Size: MF
Click here for detailed picture of above image.

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.
-------------------------------

I'm off to bed...

I have a SC2 that i race and the check engine light came on.. Now i
will not shift out of sec.gear.... Where is this PO706 Transmissio
range sensor at on the tran... Also will the speed sensor do this? M
speedmeter dont work now..


Thanks for all the help

--
ivymotorsport

What year SC2? I assume that it is a 2000 or newer as that seems to be a
OBDII code. ???Is this manual or automatic tranny? It would help if you spec
this important stuff.

a.. P0706 - Trans Range Switch Performance is a generic Saturn code, you
need to look further into this and know the specifics of your car. Best I
can do to help.

http://answers.yahoo.com/question/index?qid=20071008091658AAyHcji
--
marx404


"ivymotorsports" <ivymotorsports.34ndcu (AT) no-mx (DOT) gmforum.com> wrote

One might also infer that since the car is raced - that there might be some
non-stock equipment onboard. Might be significant to note this.

"marx404" <404 (AT) 404 (DOT) com> wrote

car is totally stock, it is a Auto tran, SC2 is a 1997


so is the switch bad?
DTC P0706 Trans Range Switch Performanc

--
ivymotorsport

then would start at the "neutral safety switch".

--
marx404

"ivymotorsports" <ivymotorsports.34oicy (AT) no-mx (DOT) gmforum.com> wrote