Specifications

TEST ACTION APPLICABILITY
1 NOTE: If the ECM detects and stores a DTC, the ECM also stores the
engine/vehicle operating conditions under which the DTC was set. Some of
these conditions are displayed on the DRB at the same time the DTC is
displayed.
NOTE: Before erasing stored DTCs, record these conditions. Attempting to
duplicate these conditions may assist when checking for an active DTC.
Turn the ignition on.
With the DRB, erase ECM DTCs.
Perform several ignition cycles leaving the ignition on for at least 10 seconds then off
for 10 seconds.
With the DRBIIIt, read the ECM DTCs.
Did this DTC set again?
All
Yes → Go To 2
No → Go To 6
2 Turn the ignition off.
Disconnect each Glow Plug harness connector.
Disconnect the Glow Plug Module harness connector.
Measure the resistance of each Glow Plug Control circuit.
Is the resistance below 10.0 ohms for each circuit?
All
Yes → Go To 3
No → Repair the appropriate Glow Plug Control circuit for an open.
Perform ROAD TEST VERIFICATION - VER-2.
3 Turn the ignition off.
Disconnect each Glow Plug harness connector.
Disconnect the Glow Plug Module harness connector.
Measure the resistance between ground and each Glow Plug Control circuit.
Is the resistance below 1000.0 ohms for any of the measurements?
All
Yes → Repair the appropriate Glow Plug Control circuit for a short to
ground.
Perform ROAD TEST VERIFICATION - VER-2.
No → Go To 4
4 Turn the ignition off.
Disconnect each Glow Plug harness connector.
Disconnect the Glow Plug Module harness connector.
Turn the ignition on.
Measure the voltage of each Glow Plug Control circuit.
Is the voltage below 1.0 volt for each circuit?
All
Yes → Go To 5
No → Repair the appropriate Glow Plug Control circuit for a short to
voltage
Perform ROAD TEST VERIFICATION - VER-2.
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DRIVEABILITY - DIESEL
P1482-GLOW PLUG MODULE - EXCESS CURRENT — Continued