Mercedes-Benz Sprinter / Dodge Sprinter. Manual — part 119
TEST
ACTION
APPLICABILITY
5
Turn the ignition off.
With the DRBIII
t, erase ECM DTCs.
Refer to the Service Information and perform the Glow Plug Test on each Glow plug.
Did each Glow Plug pass the test?
All
Yes
→ Replace the Glow Plug Module.
Perform ROAD TEST VERIFICATION - VER-2.
No
→ Replace the appropriate Glow Plug in accordance with the Service
Information.
Perform ROAD TEST VERIFICATION - VER-2.
6
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?
All
Yes
→ Repair as necessary.
Perform ROAD TEST VERIFICATION - VER-2.
No
→ Test Complete.
84
DRIVEABILITY - DIESEL
P1482-GLOW PLUG MODULE - EXCESS CURRENT —
Continued
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
TEST
ACTION
APPLICABILITY
2
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?
All
Yes
→ Repair as necessary.
Perform ROAD TEST VERIFICATION - VER-2.
No
→ Test Complete.
86
DRIVEABILITY - DIESEL
P1482-GLOW PLUG MODULE - INCORRECT TIMER —
Continued
Symptom:
P1610-ENGINE CONTROL RELAY PLAUSIBILITY
When Monitored and Set Condition:
P1610-ENGINE CONTROL RELAY PLAUSIBILITY
When Monitored:
During after-run.
Set Condition:
The internal ECM timer determines that the Engine Control Relay
remains on for more than 2.0 seconds after the ECM has turned off the Engine Control
Relay.
POSSIBLE CAUSES
CHECK FOR OTHER DTCS
CHECK THE ECM POWER AND GROUNDS
ENGINE CONTROL MODULE
INTERMITTENT CONDITION
SUBSTITUTE ENGINE CONTROL RELAY
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRB, check for additional DTCs.
Are other DTCs present?
All
Yes
→ Refer to the Symptom List for diagnosis of the other DTCs before
continuing.
Perform ROAD TEST VERIFICATION - VER-2.
No
→ Go To 2
2
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 key cycles, pausing for at least 10 seconds between each
cycle.
Turn the ignition on.
With the DRB, read ECM DTCs.
Did this DTC set again?
All
Yes
→ Go To 3
No
→ Go To 5
87
DRIVEABILITY - DIESEL
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