Coolant temp voltage?

[Jarlaxle]

My CEL is on. :bang: I had Auto Stoned scan the code, it came up with coolant temp high voltage. Err...help? Does this mean I need a temp sensor?

If it matters, the gauge seems to be working fine. Normal operating temp seems to be ~200 degrees.

1997 Sport, 4.0/auto, all stock.

[Mudderoy]

My CEL is on. :bang: I had Auto Stoned scan the code, it came up with coolant temp high voltage. Err...help? Does this mean I need a temp sensor?

If it matters, the gauge seems to be working fine. Normal operating temp seems to be ~200 degrees.

1997 Sport, 4.0/auto, all stock.

p0118?

If so you might want to read through this post on Jeep Forum...


COMPONENT MONITOR DRIVE CYCLE INSTRUCTIONS
Do not turn off the ignition switch during the test procedure.
All Onboard System Readiness codes are cleared if the battery is disconnected or when the Powertrain Control Module (PCM) is cleared with the scan tool.
This drive cycle can be used to determine if the Readiness code for this Monitor will run and complete, and if the Malfunction Indicator Lamp (MIL) will remain off after the vehicle is driven.
Operating Ranges: Whenever a range of values is provided, try to operate the vehicle in the middle of the range. For example, if the vehicle speed range is from 45-65 MPH, operate the vehicle at as close as possible to 55 mph. If the Short Term fuel trim range is -20% to +20%; try to operate the vehicle near 0%.
Scan Tool Data: There are certain Parameter Identification (PID) values that must be within range before this Monitor will "run". It can be helpful to pull up those PID items on the scan tool so an assistant can view them during the test.
The Readiness code for this Monitor defaults to "continuous" or "monitoring" because this Monitor runs continuously when the engine is cranking or running.
This information is a representation of a Drive Cycle, and may vary due to software revisions to the PCM.


COMPONENT MONITOR PRETEST CONDITIONS
MIL is off.
Battery voltage between 11-16v.
Key on or engine running at idle or cruise speed.

:link: (http://www.jeepforum.com/forum/f9/high-voltage-coolant-temp-sensor-1141429/)

[Carves]

Which - CEL code did they say it was ??

[Jarlaxle]

They didn't. :(

[Mudderoy]

They didn't. :(

$28

http://ecx.images-amazon.com/images/I/511wAoE-OzL._SL500_AA300_.jpg

Amazon.com: Autel MaxiScan MS300 CAN Diagnostic Scan Tool for OBDII Vehicles: Automotive@@AMEPARAM@@http://ecx.images-amazon.com/images/I/511wAoE-OzL.@@AMEPARAM@@511wAoE-OzL

[4.3LXJ]

There are lots of code readers available now for reasonable prices.

[Jarlaxle]

I know, I had one.

Unfortunately, someone swiped it. :(

[Carves]

X 2 on having your own .... makes life a bit easier.

Should have been a P0118 code as Mudderoy mentioned ...

This link has a bit on it. .... http://www.obd-codes.com/p0118

Some codes dont nescessarily mean the problem is still happening ... Its quite possible that certain conditions caused the code ... and its no longer happening ... and it will just take the 40 or whatever keystarts for it to clear.

Personally I'd clean and check all connections ... clear the code manually ... and see if it comes back ...