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DRIVEABILITY - DIESEL
P1499-HYDRAULIC COOLING FAN SOLENOID CIRCUIT SHORT CIR -
CUIT —
Continued
TEST
3
Turn the ignition off.
Install a substitute Hydraulic Cooling Fan Solenoid.
Turn the ignition on.
With the DRB, erase ECM DTCs.
With the DRBIII , actuate the Hydraulic Cooling Fan Solenoid.
With the DRBIII , read the ECM DTCs.
Does the DRB display this DTC?
Yes → Replace and program the Engine Control Module in accordance
→ Replace the Hydraulic Cooling Fan Solenoid.
No
4
WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A
DIRECT LINE WITH THE FAN. DO NOT PUT YOUR HANDS NEAR THE
PULLEYS, BELTS OR FAN. DO NOT WEAR LOOSE CLOTHING.
NOTE: The conditions that set the DTC are not present at this time. The
following list may help in identifying the intermittent condition.
With the engine running at normal operating temperature, monitor the DRB
parameters related to the DTC while wiggling the wiring harness. Look for param-
eter values to change and/or a DTC to set.
Review the DTC When Monitored and Set Conditions. If possible, try to duplicate the
conditions under which the DTC was set.
Refer to any Technical Service Bulletins (TSB) that may apply.
Visually inspect the related wiring harness. Look for any chafed, pierced, pinched, or
partially broken wires.
Visually inspect the related wiring harness connectors. Look for broken, bent, pushed
out, or corroded terminals.
Were any of the above conditions present?
Yes → Repair as necessary.
→ Test Complete.
No
ACTION
with the Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
Perform ROAD TEST VERIFICATION - VER-2.
Perform ROAD TEST VERIFICATION - VER-2.
188
APPLICABILITY
All
All
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