ARC Relays

sonrider657

Registered User
The Automatic Ride Control relays are sometimes clicking rapidly in an even rhythmic pattern (the ARC system is not working).

How can I test these relays to see if they are the cause or symptom of the problem?
 
First is the ARC light flashing? If not you need to pull the codes form it, just like with the EEC. Precede form there.
 
If memory serves mine did the same and was capacitors on the board,in the trunk. Not a hard job to replace them if you can solder. Once you open the module if it is the caps the board will be discolored around them, post pic and can confirm.

Measure the Ohms on the EVO looking for 5-20

On the ARC Module harness: Looking for 1000 Ohms or more.
Measure Ohms PINS 60 to 48
Measure Ohms PINS 60 to 43
 
Last edited:
Back
Top