Trouble Shooting: Notes
NOTE:
This article contains test charts which are part of General Motors Computerized Engine Controls. Only those charts required to test electric cooling fans are included. Other diagnostic information may be referenced while performing electric cooling fan diagnosis. For complete information on General Motors Computerized Engine Control systems, see the G-TESTS W/CODES article in the ENGINE PERFORMANCE section.
Trouble shoot cooling fan using appropriate C-12 charts provided. See COOLING FAN CHART INDEX table. For cooling fan relay location, see COOLING FAN RELAY LOCATION table.
COOLING FAN RELAY LOCATION
| Application | Location |
|---|---|
| "W" Body | Inside Electrical Center, On Right Front Of Engine Compartment |