So I have a CEL for p0705, a left hand turn signal going off like a cheetah on cocaine, and no reverse lights. Oh wait actually I have turn signal issues only when the lights are on, but it flashes my turn brake and reverse lights???? What in the world is going on?? Pulled my NSS, and its perfectly clean inside now. reset the computer and i get the CEL again! Any ideaa? no visible damage to any wiring either, yall Im perplexed!

 

Okay new turn signal switch, and fuse in! and no difference what so ever, This is above my pay grade here.
List of new parts and non-problems:
NSS
Turn signal Switch
Turn signal Relay
All bulbs
Wiring to bulbs and all lights checked

List of problems:
Left turn blinking ultra-fast with reverse and brake light when using turn signal
CEL for P0705
NO reverse lights!!!!!!!

 

Probably in the wiring somewhere in the column. Have you tried messing wit the E-flasher switch while blinkers on? Could have some bearing. If mines not in the right position the blinker goes hyper mode.

 

Just tried it and no effect... ahhhhhh a break in the front light wire harness!! well guess this is a two part problem! will update list! thanks man!

 

Do a little searing before you dive into the steering column.. There might be a simpler option to try first. You can search by site if you type site:cherokeeforum.com then your query. Good way to help eliminate errant info. jeepforum.com also has good info \

 

Here's some diagnostics possible causes for P0705:


TRS (Transmission Range Sensor), aka, NSS.


P0705-RANGE SENSOR


When Monitored: Continuously with the key on.


Set Condition: No Transmission Range Sensor signals are received or two conflicting signals are received from the Transmission Range Sensor at the same time by the TCM.


Possible Causes:


PCM PARK/NEUTRAL DTC’S PRESENT


INTERMITTENT WIRING AND/OR CONNECTORS


FUSED IGNITION SWITCH OUTPUT OPEN OR HIGH RESISTANCE


TRS 1-2 SENSE CIRCUIT OPEN


TRS 3 SENSE CIRCUIT OPEN


TRS OVERDRIVE SENSE CIRCUIT OPEN


TRS REVERSE SENSE CIRCUIT OPEN


TRS 1-2 SENSE CIRCUIT SHORTED TO GROUND


TRS 3 SENSE CIRCUIT SHORTED TO GROUND


TRS OVERDRIVE SENSE CIRCUIT SHORTED TO GROUND


TRS REVERSE SENSE CIRCUIT SHORTED TO GROUND


TRS 1-2 SENSE CIRCUIT SHORTED TO VOLTAGE


TRS 3 SENSE CIRCUIT SHORTED TO VOLTAGE


TRS OVERDRIVE SENSE CIRCUIT SHORTED TO VOLTAGE


TRS REVERSE SENSE CIRCUIT SHORTED TO VOLTAGE


TRANS RANGE SENSOR-SENSE CIRCUIT


TCM-TRS SENSE CIRCUIT INPUTS


~~~~~~~~~~~


Tests at the TCM connector.


Use safety pins to probe the TCM pin cavities to free up your hands.


Do the voltage checks on the TRS pin cavities.

 

Hey Yall!
Took me a few days but figured it out actually! Every wire on the sensor was reading right voltage wise, so I cleared my computer, and it still came back on. So I was just gonna deal with it till i ytook my carpet out to bedliner the thing and I noticed the ground for the passenger side lights was broken under the carpet! What a funny thing grounds are, their so finicky!

 

Glad you figured it out! Always feels good to fix it yourself.