2006 MERCEDES-BENZ SPRINTER Service Manual

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Page 641 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual Symptom List:
P2511-EGR VALVE SIGNAL CIRCUIT SHORTED TO GROUND
P2527-EGR VALVE SIGNAL CIRCUIT OPEN CIRCUIT
P2527-EGR VALVE SIGNAL CIRCUIT SHORTED TO GROUND
Test Note: All symptoms listed above are dia

Page 642 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual TEST ACTION APPLICABILITY
3 Turn the ignition off.
Disconnect the ECM harness connectors.
Connect a jumper wire between ground and the Engine Control Relay Signal circuit
in ECM C2 harness connector c

Page 643 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual TEST ACTION APPLICABILITY
7 Turn the ignition off.
Install a substitute EGR Solenoid in place of the vehicles EGR Solenoid.
NOTE: Ensure the ECM and EGR Valve harness connectors are connected.
Turn t

Page 644 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual Symptom List:
P2514-CRANKCASE VENT HEATER OPEN CIRCUIT
P2514-CRANKCASE VENT HEATER SHORTED TO GROUND
P2514-CRANKCASE VENT HEATER SHORTED TO VOLTAGE
Test Note: All symptoms listed above are diagnosed u

Page 645 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual TEST ACTION APPLICABILITY
2 Turn the ignition off.
Disconnect the ECM harness connectors.
Connect a jumper wire between ground and the Engine Control Relay Control circuit
in ECM C2 harness connector

TEST ACTION APPLICABILITY
2 Turn the ignition off.
Disconnect the ECM harness connectors.
Connect a jumper wire between ground and the Engine Control Relay Control circuit
in ECM C2 harness connector cavity 44.
Turn the ignition on.
Using a 12-volt test light connected to ground, check the Fused Engine Control Relay
Output circuits at the ECM C2 harness connector cavities 1, 3 and 5.
Choose the appropriate result.All
Test light is on for all circuits.
Go To 3
Test light is on for 1 or 2 circuits
Repair the Engine Control Relay Output circuit(s) that did not
illuminate brightly for an open.
Perform ROAD TEST VERIFICATION - VER-2.
Light off for all circuits.
Refer to symptom Checking the ECM Power and Grounds.
Perform ROAD TEST VERIFICATION - VER-2.
3 Turn the ignition off.
Disconnect the Crankcase Vent Heater harness connector.
Disconnect the ECM harness connectors.
Measure the resistance of the both circuits between the Crankcase Vent Heater
harness connector and the ECM harness connector.
Is the resistance below 10.0 ohms for each measurement?All
Ye s!Go To 4
No!Repair the Crankcase Vent Heater circuit(s) for an open.
Perform ROAD TEST VERIFICATION - VER-2.
4 Turn the ignition off.
Disconnect the Crankcase Vent Heater harness connector.
Disconnect the ECM harness connectors.
Measure the resistance between ground and both of the Crankcase Vent Heater
circuits.
Is the resistance above 1000 ohms for each circuit?All
Ye s!Go To 5
No!Repair the Crankcase Vent Heater circuit(s) for a short to ground.
Perform ROAD TEST VERIFICATION - VER-2.
5 Turn the ignition off.
Disconnect the Crankcase Vent Heater harness connector.
Disconnect the ECM harness connectors.
Turn the ignition on.
Measure the voltage of the both Crankcase Vent Heater circuits.
Is the voltage below 1.0 volt for each circuit?All
Ye s!Go To 6
No!Repair the Crankcase Vent Heater circuit for a short to voltage.
Perform ROAD TEST VERIFICATION - VER-2.
222
DRIVEABILITY - DIESEL
P2514-CRANKCASE VENT HEATER OPEN CIRCUIT ÐContinued

Page 646 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual TEST ACTION APPLICABILITY
6 Turn the ignition off.
Install a substitute Crankcase Vent Heater in place of the vehicles existing
Crankcase Vent Heater.
NOTE: Ensure the ECM and Crankcase Vent Heater h

Page 647 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual Symptom:
P2521-IMPROPER START ATTEMPT
POSSIBLE CAUSES
VERIFY ACTIVE DTC
ENGINE CONTROL MODULE
TEST ACTION APPLICABILITY
1NOTE: If the ECM detects and stores a DTC, the ECM also stores the
engine/vehic

Page 648 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual Symptom:
P2527-EGR VALVE SIGNAL CIRCUIT SHORTED TO VOLTAGE
POSSIBLE CAUSES
INTERMITTENT CONDITION
EGR SOLENOID
EGR VALVE CONTROL SHORTED TO VOLTAGE
ENGINE CONTROL MODULE - INTERNAL
ENGINE CONTROL MODU

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