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Mercedes-Benz Sprinter / Dodge Sprinter. Manual - part 151

Symptom:

P2344-KICKDOWN SWITCH PLAUSIBILITY

POSSIBLE CAUSES

INTERMITTENT CONDITION

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.
NOTE: If there are any Accelerator Pedal Position Sensor DTC’s present,
repair the APP Sensor DTC’s before continuing.
Turn the ignition on.
With the DRB, erase ECM DTCs.
Turn the ignition off for 10 seconds.
Test drive the vehicle. Be sure to completely depress the accelerator pedal several
times to activate the Kickdown Switch.
Monitor the DRB for ECM DTCs.
Did this DTC set again?

All

Yes

→ Test Complete.

→ Go To 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.

→ Test Complete.

212

DRIVEABILITY - DIESEL

Symptom List:

P2347-AUTOMATIC TRANSMISSION CODED AS MANUAL TRANS-
MISSION
P2347-CAN BUS CIRCUIT INTERUPTION
P2347-MANUAL TRANSMISSIO CODED AS AUTO TRANSMISSION
P2347-WRITE ERROR TO EEPROM

Test Note:

All symptoms listed above are diagnosed using the same tests.

The title for the tests will be P2347-AUTOMATIC TRANSMIS-
SION CODED AS MANUAL TRANSMISSION.

POSSIBLE CAUSES

ENGINE CONTROL MODULE

VERIFY ECM PROGRAMMING

TEST

ACTION

APPLICABILITY

Turn the Ignition on.
With the DRBIII

t, erase the ECM DTCs.

With the DRBIII

t, verify that the ECM is properly coded for the options and

components that the vehicle is equipped with.
NOTE: Reprogram the ECM with correct information if necessary.
Start and idle the engine.
With the DRBIII

t, read ECM DTCs.

Did this DTC set again?

All

Yes

→ Replace and program the Engine Control Module in accordance

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

→ Test complete.

Perform ROAD TEST VERIFICATION - VER-2.

213

DRIVEABILITY - DIESEL

Symptom:

P2351-ECM SUPPLY VOLTAGE TOO LOW

POSSIBLE CAUSES

ECM

ECM IGNITION CIRCUIT OPEN

STARTER OR LIFT PUMP RELAY CIRCUIT(S) SHORTED TO GROUND

INTERMITTENT CONDITION

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 DRB, erase ECM DTCs.
Turn the ignition off for 10 seconds.
Test drive the vehicle.
Monitor the DRB for ECM DTCs.
Did this DTC set again?

All

Yes

→ Go To 2

→ Go To 4

Turn the ignition off.
Disconnect the ECM harness connectors.
Remove the Starter Relay and disconnect the Fuel Lift Pump harness connector
Measure the resistance between ground and the Starter Relay control circuit.
Measure the resistance between ground and the Fuel Lift Pump Relay control circuit.
Did both circuits measure above 1000 ohms?

All

Yes

→ Go To 3

→ Repair the relay control circuit(s) that did not measure above

1000 ohms for a short to ground.
Perform ROAD TEST VERIFICATION - VER-2.

Turn the ignition off.
Disconnect the ECM harness connectors.
Using the Service Wiring Information determine which circuits in the ECM harness
connector provide Ignition Switch power to the ECM.
Turn the ignition on.
Using a 12-volt test light connected to ground, check each Ignition Switch Output
circuits in the ECM harness connectors.
Does the test light illuminate brightly for each circuit?

All

Yes

→ Replace the ECM in accordance with the Service Information.

Perform ROAD TEST VERIFICATION - VER-2.

→ Repair the Ignition Supply circuit as necessary.

Perform ROAD TEST VERIFICATION - VER-2.

214

DRIVEABILITY - DIESEL

TEST

ACTION

APPLICABILITY

All

Yes

→ Repair as necessary.

Perform ROAD TEST VERIFICATION - VER-2.

→ Test Complete.

215

DRIVEABILITY - DIESEL

P2351-ECM SUPPLY VOLTAGE TOO LOW —

Continued

Content .. 149 150 151 152 ..