2005 Expy EB 4X2 wiring schematic/diagram

[pohoda]

Hello,

I am troubleshooting a wiring issue with my temp sensor (CHT) sensor and need a wiring schematic to determine what wires are coming from the ECU to the sensor. Can anyone provide the diagram for my model/year? Mine has the CHT only sensor and not the sensor behind the alternator like some models do.

Thanks,

Paul

 

[Bedrck47]

Hope this helps

 

[pohoda]

Hope this helps

Thank you so much! I think this is what I need.

I am hoping that I can find the issue with the wire or replace it. My temp gauge started acting up with "temp gauge data error" intermittently so I replaced the CHT (what a PITA). Shortly after the gauge stopped working completely and now I am stuck with the CEL and "temp gauge data error". I sent my ECU in to SIA to have it checked/fixed. They said it checked out and there were no issues with the circuit that checks engine temp.

So now I am faced with troubleshooting the problem between the CHT and the ECU.

Wish me luck.

-Paul

 

[Bedrck47]

your welcome Just a suggestion You only need to make one post for your problem Extra threads will only cause you to be jumping back and forth to see any responses.

One thing that I noticed in the wiring diagram is there seems to be many splices in the circuit

 

[pohoda]

Ok. I thought that since this was a request for wiring diagram it would make more sense to have a separate thread for the issue. Can I just delete the other thread or request a MOD to do it?

 

[Bedrck47]

Request a mod to do it Or delete this one since you now have the print Or let me know and I can repost it

 

[Bedrck47]

Sending you a PM

 

[Bedrck47]

Paul What was the code number that came up??

 

[pohoda]

P0119 P1290 P2006 P1000 P1289 P128A is what I wrote down.


Sent from my SM-G900T using Tapatalk

 

[Bedrck47]

P0119 - Engine Coolant Temperature (ECT) Sensor 1 Circuit Intermittent/Erratic

Description: Indicates the ECT circuit became intermittently open or shorted while the engine was running. Note: On vehicles that are not equipped with an ECT sensor, the cylinder head temperature (CHT) sensor can be used and can set this DTC.
Possible Causes: • Damaged harness.
• Damaged sensor.
• Damaged harness connector.
• Low engine coolant.

P1000 - On Board Diagnostic (OBD) System Readiness Test Not Complete

Description: The OBD monitors are carried out during the OBD drive cycle. P1000 is stored in continuous memory if any of the OBD monitors do not carry out their full diagnostic check.
Possible Causes: • The vehicle is new from the factory.
• Battery or powertrain control module (PCM) had recently been disconnected.
• An OBD monitor failure occurred before completion of an OBD drive cycle.
• PCM DTCs have recently been cleared with a diagnostic tool.
• PTO circuit is shorted to VPWR or B+ or PTO is on during testing.

P1289 - Cylinder Head Temperature (CHT) Sensor Circuit High Input

Description: Indicates a CHT sensor circuit malfunction (open).
Possible Causes: • Open CHT sensor circuit.
• CHT sensor circuit short to PWR.
• Damaged CHT sensor.
• Improper harness connection.
• Damaged PCM.


P128A - Cylinder Head Temperature (CHT) Sensor Circuit Intermittent/Erratic


Description: Indicates the CHT circuit became intermittently open or shorted while the engine was running.
Possible Causes: • Damaged harness.
• Damaged sensor.
• Damaged PCM.
• Damaged harness connector.


P1290 - Cylinder Head Temperature (CHT) Sensor Circuit Low Input

Description: Indicates a CHT sensor circuit malfunction (shorted).
Possible Causes: • Grounded circuit in CHT harness.
• Damaged CHT sensor.
• Improper harness connection.


P2006 - Intake Manifold Runner Control (IMRC) Stuck Closed (Bank 1)

Description: This DTC is set when the IMRC is commanded open, but the IMRC monitor indicates closed. This DTC replaces P1512 and P1519.
Possible Causes: • IMRC monitor circuit open.
• IMRC control circuit open.
• IMRC monitor circuit short to VREF.
• Damaged IMRC actuator or solenoid.