Neutral safety switch??? - Jeep Patriot Forums
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post #1 of 8 (permalink) Old 03-30-2013, 08:45 PM Thread Starter
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Question Neutral safety switch???

Hi,

I've be having issues with my '08 Pat not starting. Some days it would others it wouldn't. Now it just wont start at all. Battery is fine, Starter works and has been tested. When I turn the key ahead all lights come on, and sometimes I hear a click. But starter wont start. So I tried doing a "hot wire" from the starter right to the battery. Turned the key ahead, and touched the wire on the battery. The starter cranked over but still wouldn't start.

I've been told it could be the Neutral safety switch. I'm not sure exactly where it is. I'm wondering where its located and if there is a way to bypass it all together. Cause I mean lets face it, I will never try to start the thing in Drive. You got to have it in park to take the key out anyways.

I've been a member to this site for years and have never posted a question. Most question I've had have already been answered. I couldn't find anything on this topic.

Thanks all,


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post #2 of 8 (permalink) Old 03-30-2013, 09:26 PM
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I don't have an answer fro you but wanted to remind that it is Easter weekend so things might be a bit slow.

so, this will explain that and bump the thread back up too.

Someone with a bit of an idea will be along, I'm sure.
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post #3 of 8 (permalink) Old 03-30-2013, 10:18 PM
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Neutral sensor is usually located within the shifter.
On other cars I have had its usually a slide sensor that senses shifter position .
Have had it go bad and lose connection on an olkd car. But haven't heard it going bad on the pat or other recent cars.
If park, driving lights and reverse lights work right, probably not the sensor.
When you hard wired it, did you hard wire the starter? Or the solenoid?
If starter worked could be a bad solenoid.
Or could also be a loose connection somewhere.
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post #4 of 8 (permalink) Old 03-30-2013, 11:14 PM Thread Starter
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I have already tried a brand new starter and still the same issue. frustrating to say the least.


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post #5 of 8 (permalink) Old 03-31-2013, 12:12 AM
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Brilliant_Black - This may sound dumb, but have you tried cleaning the battery connections?
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post #6 of 8 (permalink) Old 03-31-2013, 06:47 AM Thread Starter
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Quote:
Originally Posted by nth256 View Post
Brilliant_Black - This may sound dumb, but have you tried cleaning the battery connections?
Not dumb, sometimes the simplest answer is the right answer. But in this case no. I have cleaned both the connectors and the terminals.


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post #7 of 8 (permalink) Old 03-31-2013, 11:17 AM
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From the 2008 FSM:
Quote:
The starting system consists of:

Starter motor (including an integral starter solenoid)
Other components to be considered as part of starting system are:

Battery
Battery cables
Ignition switch and key lock cylinder
Clutch pedal position switch (manual transmission)
Park/neutral position switch (automatic transmission)
Wire harnesses and connections.
The Battery, Starting, and Charging systems operate in conjunction with one another, and must be tested as a complete system. For correct operation of starting/charging systems, all components used in these 3 systems must perform within specifications. When attempting to diagnose any of these systems, it is important that you keep their interdependency in mind.
The neutral safety is included in the transmission range sensor, which is bolted to the transmission where the control cable connects to select the gear.

It shows this diagnostic:
Quote:
Diagnostic Test
1. CHECK FOR ACTIVE DTC
--------------------------------------------------------------------------------

With the scan tool, read the DTC's.
Cycle the ignition switch from off to on, leaving the ignition on for a minimum of 10 seconds.
With the scan tool, read the DTC's.

Does the scan tool display this DTC as active?

Yes

Go To 2


No

If the DTC is stored, check for an intermittent condition. Using the wiring diagram/schematic as a guide, visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.

2. TRANSMISSION RANGE SENSOR
--------------------------------------------------------------------------------





Turn the ignition off.
Disconnect the Transmission Range Sensor harness connector.
Turn the ignition on, wait 30 seconds.
With the scan tool, read TIPM DTCs.

Does the scan tool display this DTC as active?

Yes

Replace the Transmission Range Sensor in accordance with the service information.
Perform BODY VERIFICATION TEST VER 1 (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)


No

Go To 3

3. ENGINE CONTROL MODULE (DIESEL)
--------------------------------------------------------------------------------

Turn the ignition off.
Disconnect the Diesel ECM C1 harness connector.
Turn the ignition on, wait 30 seconds.
With the scan tool, read TIPM DTCs.

Does the scan tool display this DTC as active?

Yes

Replace the ECM in accordance with the service information.
Perform BODY VERIFICATION TEST VER 1 (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)


No

Go To 4

4. (F962) FUSED IGNITION SWITCH OUTPUT (START) CIRCUIT SHORT TO GROUND
--------------------------------------------------------------------------------





Turn the ignition off.
Disconnect the TIPM C5 connector.
Measure the resistance between the (F962) Fused Ignition Switch Output (START) circuit and ground.

Is the resistance below 10K ohms?

Yes

Repair the (F962) Fused Ignition Switch Output (START) circuit for a short to ground.
Perform BODY VERIFICATION TEST VER 1 (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)


No

Replace the TIPM in accordance with the service information.
Perform BODY VERIFICATION TEST VER 1 (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)

-Todd
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post #8 of 8 (permalink) Old 09-02-2015, 07:10 PM
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Did you ever find out what this issue was?
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