Symptom List:
P1482-GLOW PLUG MODULE - INCORRECT TIMER
P1482-GLOW PLUG MODULE - INTERNAL FAULT
P2538-GLOW PLUG MODULE COMMUNICATION ERROR
P2538-GLOW PLUG MODULE EXCESSIVE CURRENT ERROR
P2538-GLOW PLUG MODULE TIMER ERROR
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be P1482-GLOW PLUG MODULE -
INCORRECT TIMER.
POSSIBLE CAUSES
GLOW PLUG MODULE
INTERMITTENT CONDITION
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.
NOTE: This DTC indicates an internal Glow Plug Control Module problem
or an incorrect Glow Plug Module has been installed.
Turn the ignition on.
With the DRBIII
t, erase ECM DTCs.
Perform several engine run cycles, turning the ignition off for at least 20 seconds
between each engine run cycle.
With the DRBIII
t, read the ECM DTCs.
Did this DTC set again?
All
Yes
→ Replace and program the Glow Plug Control Module in accor-
dance with the Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
No
→ Go To 2
85
DRIVEABILITY - DIESEL