TEST ACTION APPLICABILITY
3 NOTE: Both Radiator Fan Relays must be removed from the PDC during the
following steps.
Turn the ignition on.
Using the DRBIIIt, actuate the High Speed Radiator Fan Relay.
Using a test light connected to battery voltage, probe both of the Radiator Fan Relay
Control circuits (relays #2 and #3).
NOTE: The test light should flash at both control circuits.
Choose a conclusion that best matches the result of the above test.
All
Does NOT flash for Relay #2 (ONLY).
Repair the open in the Radiator Fan Relay #2 Control circuit
between the PDC and the splice.
Perform POWERTRAIN VERIFICATION TEST VER-5-NGC.
Does NOT flash for Relay #3 (ONLY).
Repair the open in the Radiator Fan Relay #3 Control circuit
between the PDC and the splice.
Perform POWERTRAIN VERIFICATION TEST VER-5-NGC.
Does NOT flash for both #2 and #3 Relays
Go To 4
Flashes at both Relays.
Install a substitute relay in place of the Radiator Fan Relays #2
and #3 to determine the faulty relay. Replace the appropriate
Radiator Fan Relay.
Perform POWERTRAIN VERIFICATION TEST VER-5-NGC.
4 NOTE: Both Radiator Fan Relays must be removed from the PDC during the
following steps.
Turn the ignition off.
Disconnect the PCM harness connector.
Measure the resistance between ground and the Radiator Fan Relay #2 Control
circuit in the PDC.
Is the resistance below 100 ohms?
All
Yes → Repair the short to ground in the Radiator Fan Relay Control
circuits.
Perform POWERTRAIN VERIFICATION TEST VER-5-NGC.
No → Go To 5
182
DRIVEABILITY - NGC
P0481-COOLING FAN 2 CONTROL CIRCUIT (TURBO) — Continued
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