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4G63 Cyclone Non-Turbo - Unexplained warning lights in the speedometer

Ali_6306

Active member
Joined
Aug 15, 2011
Messages
27
Location
Lahore, Pakistan
Guys here is another caution light. Its been in many speedometers I have seen, but never seen one that is working. I attempted to reverse engineer it, but there is no wire in this vehicle's harness to operate it. Just wondering what it may be for:



 

fuel

Well-known member
Joined
Feb 23, 2009
Messages
2,165
Location
Toronto, ON, Canada
low coolant level in reservoir. The light was not used on all models, only in some select markets.
 

misterfixit

Well-known member
Joined
Aug 4, 2004
Messages
1,596
Location
Midlands, UK
Thats low headlight washer fluid, not coolant. In all the EU cars i've had it's been that.

I don't have a uk owners manual scanned here though so I can't post the manual blurb.

Has it got head light washers?

Rich
 
Last edited:

Ali_6306

Active member
Joined
Aug 15, 2011
Messages
27
Location
Lahore, Pakistan
Neither my car nor the donor had headlight washer. Which explains why this light was not operative.

About the CAT temp sensor: The resistance I got here was not working as it produced erratic resistance everytime I checked. So I visited the electronics market and without much effort got hold of a variable resistance (0 to 100 ohms). It works perfect once set to produce 15 ohms resistance. Before I connect it to ECM, can you confirm whether all I need to do is to connect the wires (red & white) to two interfaces of the variable resistance? Is there any thing else I need to pay attention to?

I believe if the light goes out, it means success. /ubbthreads/images/graemlins/smile.gif

Ali
 

misterfixit

Well-known member
Joined
Aug 4, 2004
Messages
1,596
Location
Midlands, UK
yup. Just connect the two wires to the load.

As it's a variable resistance you could do a sweep and let us know whats the minimum it goes out at /ubbthreads/images/graemlins/smile.gif

Rich
 

Ali_6306

Active member
Joined
Aug 15, 2011
Messages
27
Location
Lahore, Pakistan
Hi Rich,

Issue fixed. I connected the wires to the resistance and light goes out. Thankyou for the help mate! (Y)

The variable resistance I have ranges from 1.3 to 108 ohms. I checked all through the range, but the CAT temp light stays off until it is disconnected.

Thank you again for the guidance!

Regards,

Ali
 

misterfixit

Well-known member
Joined
Aug 4, 2004
Messages
1,596
Location
Midlands, UK
Cheers for that!

Here's the wiring for 87.10 N/A 4G63. Config diags too:














Hope this helps!

/ubbthreads/images/graemlins/smile.gif

Rich
 
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