Symptom:
*CHECKING RAD FAN LOW SPEED OPERATION (TURBO)
POSSIBLE CAUSES
FUSED B+ CIRCUIT OPEN
LOW SPEED FANS OPERATION
RADIATOR FAN RELAY #3
LOW SPEED RAD FAN OUTPUT SHORTED TO GROUND BETWEEN RELAY #2 AND FAN #2
LOW SPEED RAD FAN OUTPUT SHORTED TO GROUND FAN#2 AND RELAY #3
RAD FAN #1 SHORTED INTERNALLY
RADIATOR FAN RELAY 1 OR 3
LOW SPEED RAD OUTPUT CIRCUIT SHORTED TO GROUND BETWEEN RELAY #3 AND FAN#1
GROUND CIRCUIT OPEN
RAD FAN #1 OPEN
RAD FAN #2 OPEN
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIIt, actuate the Low Speed Rad Relay.
Observe the Radiator Fans.
Choose a conclusion that best match the Radiator Fans operation.
All
Both Fans operation at at low speed
Low Speed Radiator Fans are operation normally at this time.
Perform POWERTRAIN VERIFICATION TEST VER-5-NGC.
Fan #2 operating only
Go To 2
Fans not Operating
Go To 6
2 Using the DRBIIIt, actuate the Low Speed Fan Relay #1.
Turn the ignition on.
Remove the Rad Fan Relay Control #3 from the PDC.
Did the Fan #2 stop operating?
All
Yes → Replace the Rad Fan Relay Control #3.
Perform POWERTRAIN VERIFICATION TEST VER-5-NGC.
No → Go To 3
295
DRIVEABILITY - NGC
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