T-case sensor- same for 231 or 242?

[DPG]

Hey guys, need a new t-case sensor for my 242 t-case in a 2000 XJ.
Looking online and can't seem to find any info.

I can't imagine that the 231 and 242 would have the same sensor, but nothing I'm seeing says if the sensors are any different.

Thanks in advance for any info!

 

[RCP Phx]

Dirk, they should be different because of the additional contact needed for the part/full time indicator besides the hi/low range indicator.

 

[lawsoncl]

If you mean the speed sensor, I think they are the same.

 

[DPG]

Talking about the 4WD indicator sensor. Both part-time and full-time modes are lit up on the dash, even though the jeep is in 2WD.

Thinking the 242 should have a different sensor than the 231 since there's no Full-Time mode in a 231...?
Looking online, I'm not seeing 2 different sensors available. Seem to all be showing just one.

 

[Tim_MN]

Different sensor, different wire plug, 231 vs. 242.

The part numbers should be:
231 - J8134473
242 - 56005755

IIRC, the sensor engages ground to illuminate the dashboard indicator lamps, have you checked for a ground fault, wiring isuues, wire plug problems ?

 

[cruiser54]

Poke around down near the sensor and wiring. See if something is pinched.

 

[maxbraketorque]

Different sensor, different wire plug, 231 vs. 242.

...

IIRC, the sensor engages ground to illuminate the dashboard indicator lamps, have you checked for a ground fault, wiring isuues, wire plug problems ?

While checking wiring seems to be sound advice for an XJ, the NP242 drive mode sensor can fail. It was failed on the used NP242 that I bought.

https://www.standardbrand.com/en/ecatalog?part=56006755&type=x&search=s

 

[RCP Phx]

Just unplug the switch, if the lights go out it's not the wiring.

 

[DPG]

Thanks guys!