Pin-Out for IRCM/CCRM?

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

SHO Continental

Moderator
Joined
Nov 28, 2004
Messages
2,111
Reaction score
501
Location
Northridge, Cali
I've been chasing a fuel pump problem on my Black '91 for 6 months now. The power at the pump was in the area of 3 volts. Pulled the output to the pump from the IRCM and took it directly to the battery, it works perfectly.

Does anyone have a pinout of the IRCM plug? I've swapped it with two other known working ones and I still have the problem.
 

projectSHO89

SHOless In St L
Joined
Nov 7, 2001
Messages
6,116
Reaction score
160
Location
St. Louis, MO
The CCRM pinout is posted as a sticky in the Electronics forum.

The 91 did not use the dropping resistor, only the 89 and 90 had that.

what do LFC, LFP, HFC, HFP, and WAC mean?

Low Fan Control
Low Fuel Pump
High Fan Control
High Fuel Pump
Wide-open A/C Cut-off

See my description for all this in the above sticky.
 
Last edited:
Back
Top