SPONSORED LINKS

Code P1023, cylinder head temperature sensor?

Tiny
PSCAREW
  • MEMBER
  • 2015 FORD ESCAPE
  • 2.0L
  • 4 CYL
  • TURBO
  • 4WD
  • AUTOMATIC
  • 90,000 MILES
I have a p1023 code indicating a Cylinder head temperature sensor issue. In order. To confirm it's the problem I need the PCM connector pin out and the resistance temperature table for the sensor. Is the something you can provide?
Saturday, September 30th, 2023 AT 5:22 PM

6 Replies

Tiny
AL514
  • MECHANIC
  • 4,110 POSTS
Hello, yes there is a resistance to temperature chart that we can will post for you, but as a quick check, unplug the sensor and it should read 5-volts on one wire unplugged, the other wire is a signal return(ground) to the PCM, but make sure that there isn't any higher voltages shorted to either wire. I'll post the chart for you in a minute.
If your scan tool is capable of reading live engine data, do you happen to see a data PID for a 2nd CHT sensor, CHT 2? I'm seeing a number 2 in service info, but it might be regarding the ECT sensor as number 1.

https://www.2carpros.com/articles/how-to-use-a-voltmeter
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Sunday, October 1st, 2023 AT 12:07 PM
Tiny
AL514
  • MECHANIC
  • 4,110 POSTS
Here are the wiring diagrams for the CHT sensor, diagram 1 is the aftermarket and diagram 2 is the OEM. Then the Temperature to Voltage Chart, next the Temperature to Resistance Chart, the CHT sensor connector, and the rest is for the PCM connectors C1381E and C1381B in case you need it.
Images (Click to make bigger)
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Was this
answer
helpful?
Yes
No
+1
Sunday, October 1st, 2023 AT 1:22 PM
Tiny
PSCAREW
  • MEMBER
  • 3 POSTS
Thanks. This is exactly what I need to confirm the wiring continuity and resistance of the CHT sensor.
Was this
answer
helpful?
Yes
No
Sunday, October 1st, 2023 AT 4:21 PM
Tiny
AL514
  • MECHANIC
  • 4,110 POSTS
Happy to help, let us know what you find.
Was this
answer
helpful?
Yes
No
Sunday, October 1st, 2023 AT 4:22 PM
Tiny
PSCAREW
  • MEMBER
  • 3 POSTS
The resistance was found to be out of spec and the cylinder head temperature sensor was replaced. All codes were cleared.

Thanks for the help.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Monday, October 2nd, 2023 AT 3:41 PM
Tiny
AL514
  • MECHANIC
  • 4,110 POSTS
Thats great, glad you got it fixed up. Happy to help.
Was this
answer
helpful?
Yes
No
Monday, October 2nd, 2023 AT 3:45 PM

Please login or register to post a reply.

Related Coolant Temperature Sensor Content

Coolant Temperature Sender Replacement
VIDEO
Coolant Temperature Sender Replacement
Instructional repair video
Coolant Temperature Sensor
GUIDE
Coolant Temperature Sensor
An engine coolant temperature sensor also described as an ECTS (electronic coolant temperature sensor) is designed to tell the car's computer how hot the engine is running....

Sponsored links