Mercedes-Benz Sprinter / Dodge Sprinter. Manual - part 115

TEST

ACTION

APPLICABILITY

With the DRBIII

t, select System Test, Smooth Eng Run Check, then Correction

Quantity Check.
Perform this test at Idle, 2000 rpm and 3000 rpm.
NOTE: Readings per cylinder should be below ± 0.00450 mm

/stroke for each

cylinder at each engine speed.
Did any of the cylinders exceed ± 0.00450 mm

/stroke during this test?

All

Yes

→ Replace Fuel Injector of the cylinder(s) that had readings above ±

0.00450 mm

/stroke.

Perform ROAD TEST VERIFICATION - VER-2.

→ Go To 6

With the DRBIII

t, select System Test, Smooth Eng Run Check, then Cylinder Speed

Check.
NOTE: Readings for all cylinders should be close to each other. Look for one
or two cylinders to differ high or low from the other cylinders.
Did any of the cylinders differ significantly from the majority of the other cylinders?

All

Yes

→ Replace Fuel Injector of the cylinder(s) that had readings signif-

icantly above or below the other fuel injectors.
Perform ROAD TEST VERIFICATION - VER-2.

→ Go To 7

Turn the ignition off.
Perform the INJECTOR LEAKAGE TEST in accordance with the Service Informa-
tion.
Were any problems found?

All

Yes

→ Repair or replace as necessary in accordance with the Service

Information.
Perform ROAD TEST VERIFICATION - VER-2.

→ Test Complete.

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.

→ Test Complete.

DRIVEABILITY - DIESEL

P0300-MISFIRE DETECTED —

Continued

Symptom:

P0500-WHEEL SPEED SENSOR PLAUS - CAN BUS MESSAGE FROM
ABS

When Monitored and Set Condition:

P0500-WHEEL SPEED SENSOR PLAUS - CAN BUS MESSAGE FROM ABS

When Monitored:

With the ignition on.

Set Condition:

The Boost Pressure Sensor Signal voltage exceeds 4.85 volts for at least 2

seconds.

POSSIBLE CAUSES

INTERMITTENT CONDITION

CHECK FOR RELATED CONTROLLER ANTILOCK BRAKES DTCS

CHECK FOR RELATED TRANSMISSION CONTROL MODULE DTCS

ENGINE CONTROL MODULE

TEST

ACTION

APPLICABILITY

NOTE: If the ECM displays multiple CAN Bus related DTC’s, check the CAN
Bus circuits at the ECM harness connector for proper connection before
continuing with this test.
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.
Test drive the vehicle.
With the DRB, read the ECM DTC’s.
Does the DRB display this DTC?

All

Yes

→ Go To 2

→ Go To 4

Turn the ignition on.
With the DRB, check for Controller Antilock Brakes DTCs.
NOTE: The ECM Receives vehicle speed messages via CAB Bus from the ABS
module. An interruption on the CAN Bus can cause this fault to set.
Are any related CAB DTCs present?

All

Yes

→ Refer to symptom list for problems related to CAB DTCs before

continuing.
Perform ROAD TEST VERIFICATION - VER-2.

→ Go To 3

DRIVEABILITY - DIESEL

TEST

ACTION

APPLICABILITY

NOTE: The TCM Receives vehicle speed messages via CAB Bus from the ABS
module. An interruption on the CAN Bus can cause this fault to set.
Turn the ignition on.
With the DRB, check the TCM for DTCs.
Are any ABS CAN Bus Message or Vehicle Speed related TCM DTCs present?

All

Yes

→ Replace the CAB in accordance with the Service Information.

Perform ROAD TEST VERIFICATION - VER-2.

→ Replace and program the Engine Control Module in accordance

with the Service Information.
Perform ROAD TEST VERIFICATION - VER-2.

All

Yes

→ Repair as necessary.

Perform ROAD TEST VERIFICATION - VER-2.

→ Test Complete.

DRIVEABILITY - DIESEL

P0500-WHEEL SPEED SENSOR PLAUS - CAN BUS MESSAGE FROM ABS
—

Continued

Symptom:

P0600-CAN DATA BUS - BUS CIRCUIT FAULT

When Monitored and Set Condition:

P0600-CAN DATA BUS - BUS CIRCUIT FAULT

When Monitored:

With the ignition on.

Set Condition:

The ECM detects an open, short to ground or short to voltage on the CAN

Bus circuit.

POSSIBLE CAUSES

ENGINE CONTROL MODULE

INTERMITTENT CONDITION

CAN BUS COMMUNICATION DTCS

CAN BUS CIRCUITS OPEN TO TCM

TEST

ACTION

APPLICABILITY

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 DRBIII

t, erase the ECM DTCs.

Test drive the vehicle.
With the DRBIII

t, read the ECM DTCs.

Did this DTC set again?

All

Yes

→ Go To 2

→ Go To 4

With the DRBIII

t, read the active and stored DTCs for all modules that use CAN Bus

communication.
NOTE: Due to capabilities of certain controllers that use the CAN Bus, not
all modules report CAN Bus DTCs.
NOTE: If a total CAN Bus failure transpires, there will be multiple CAN Bus
DTCs present in many modules. If the other modules are reporting Engine
CAN Bus message faults or DTC’s related to ECM CAN messages ONLY,
answer No for the following question.
Are other modules reporting active or stored CAN Bus communication DTCs?

All

Yes

→ Refer to symptom list for problems related to CAN Bus Failure.

Perform BODY VERIFICATION TEST - VER 1.

→ Go To 3

DRIVEABILITY - DIESEL

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