2006 MERCEDES-BENZ SPRINTER reset

TEST ACTION APPLICABILITY
3 Ignition on, engine not running.
With the DRBIIIt, read ABS DTCs.
Are there any ABS DTCs present?All
Ye s!Refer to the BRAKE category and perform the appropriate
symptom.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
No!Go To 4
4 Turn the ignition off to the lock position.
Replace the ABS Control Module per the Service Information.
With the DRBIIIt, erase Transmission DTCs.
Road test the Vehicle.
With the DRBIIIt, read Transmission DTCs.
Does the DTC, ABS LR SENSOR MESSAGE, reset?All
Ye s!Replace the Transmission Control Module.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
No!Test complete.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
41
TRANSMISSION - NAG1
ABS LR SENSOR MESSAGE ÐContinued

TEST ACTION APPLICABILITY
3 Ignition on, engine not running.
With the DRBIIIt, read ABS DTCs.
Are there any ABS DTCs present?All
Ye s!Refer to the BRAKE category and perform the appropriate
symptom.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
No!Go To 4
4 Turn the ignition off to the lock position.
Replace the ABS Control Module per the Service Information.
With the DRBIIIt, erase Transmission DTCs.
Road test the Vehicle.
With the DRBIIIt, read Transmission DTCs.
Does the DTC, ABS RF SENSOR MESSAGE, reset?All
Ye s!Replace the Transmission Control Module.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
No!Test complete.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
43
TRANSMISSION - NAG1
ABS RF SENSOR MESSAGE ÐContinued

TEST ACTION APPLICABILITY
3 Ignition on, engine not running.
With the DRBIIIt, read ABS DTCs.
Are there any ABS DTCs present?All
Ye s!Refer to the BRAKE category and perform the appropriate
symptom.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
No!Go To 4
4 Turn the ignition off to the lock position.
Replace the ABS Control Module per the Service Information.
With the DRBIIIt, erase Transmission DTCs.
Road test the Vehicle.
With the DRBIIIt, read Transmission DTCs.
Does the DTC, ABS RR SENSOR MESSAGE, reset?All
Ye s!Replace the Transmission Control Module.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
No!Test complete.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
45
TRANSMISSION - NAG1
ABS RR SENSOR MESSAGE ÐContinued

TEST ACTION APPLICABILITY
2 With the DRBIIIt, read Transmission DTCs.
NOTE: If the DTC, CAN BUS CIRCUIT, is present, perform diagnostics on
that symptom first.
Is the DTC, CAN BUS CIRCUIT, present?All
Ye s!Refer to the Transmission category and perform the appropriate
symptom.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
No!Go To 3
3 With the DRBIIIt, read Transmission DTCs.
Is the DTC Accel Pedal Sensor CAN Message Incorrect displayed as ACTIVE?All
Ye s!Go To 4
No!Go To 8
4 Ignition on, engine not running.
With the DRBIIIt, read Engine DTCs.
Are there any Engine bus related DTCs present?All
Ye s!Refer to the Communication category and perform the appropri-
ate symptom.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
No!Go To 5
5 Ignition on, engine not running.
With the DRBIIIt, read Engine DTCs.
Are there any Accel Pedal DTCs present?All
Ye s!Refer to the Driveability category and perform the appropriate
symptom.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
No!Go To 6
6 Replace the Transmission Control Module.
NOTE: Perform the transmission verification test.
Did the DTC9Accel Pedal Sensor CAN Message Incorrect9reset?All
Ye s!Go To 7
No!Test Complete.
7 If there are no possible causes remaining, view repair. All
Repair
Replace the Engine Control Module.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
8 The conditions necessary to set this DTC are not present at this time.
Using the schematics as a guide, inspect the wiring and connectors specific to this
circuit.
Wiggle the wires while checking for shorts and open circuits.
NOTE: Check for any Technical Service Bulletins that may apply.
Were there any problems found?All
Ye s!Repair as necessary
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
No!Test Complete.
47
TRANSMISSION - NAG1
ACCEL PEDAL SENSOR CAN MESSAGE INCORRECT ÐContinued

TEST ACTION APPLICABILITY
3 Replace and program the ECM per the Service Information.
With the DRBIIIt, erase Transmission DTCs.
Start the engine.
With the brakes firmly applied, shift the gear selector into drive.
With the DRBIIIt, read Transmission DTCs.
Did the DTC, ENGINE CAN MESSAGE INCORRECT, reset?All
Ye s!Go To 4
No!Test Complete
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
4 If there are no possible causes remaining, view repair. All
Repair
Replace the Transmission Control Module.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
57
TRANSMISSION - NAG1
ENGINE CAN MESSAGE INCORRECT ÐContinued

TEST ACTION APPLICABILITY
2 Ignition on, engine not running.
With the DRBIIIt, read Transmission DTCs.
NOTE: If the DTC, CAN BUS CIRCUIT, is present, perform diagnostics on
that symptom first.
Is the DTC, CAN BUS CIRCUIT, present?All
Ye s!Refer to the Transmission category and perform the appropriate
symptom.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
No!Go To 3
3 Ignition on, engine not running.
With the DRBIIIt, read Engine DTCs.
Are there any performance or bus related Engine DTCs present?All
Ye s!Refer to the Powertrain category and perform the appropriate
symptom.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
No!Go To 4
4 Turn the ignition off to the lock position.
Disconnect the ECM harness connector(s).
Disconnect the TCM C2 harness connector.
NOTE: Check connectors - Clean/repair as necessary.
Measure the resistance of the CAN Bus + circuit between the ECM harness connector
and the TCM C2 harness connector.
Measure the resistance of the CAN Bus - circuit between the ECM harness connector
and the TCM C2 harness connector.
Is the resistance above 5.0 ohms on either circuit?All
Ye s!Repair the CAN BUS + or - circuit for an open.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
No!Go To 5
5 Replace and program the ECM per the Service Information.
With the DRBIIIt, erase Transmission DTCs.
Start the engine.
With the brakes firmly applied, shift the gear selector into drive.
With the DRBIIIt, read Transmission DTCs.
Did the DTC, ENGINE CAN MESSAGE MISSING, reset?All
Ye s!Go To 6
No!Test Complete
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
6 If there are no possible causes remaining, view repair. All
Repair
Replace the Transmission Control Module.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
59
TRANSMISSION - NAG1
ENGINE CAN MESSAGE MISSING ÐContinued

TEST ACTION APPLICABILITY
3 Determine if there are any Transmission Mechanical problems present.
Remove the Transmission Oil Pan and inspect for debris or a plugged Transmission
Oil Filter.
Is there any debris, plugged Transmission Oil Filter, or signs of an Internal
Transmission problem?All
Ye s!Refer to the Service Information for the proper repair procedure.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
No!Go To 4
4NOTE: The Engine and Transmission must not have mechanical problems
and be operating normally before proceeding with this test.
Turn the ignition off to the lock position.
Replace and program the PCM/ECM Control Module per the Service Information.
With the DRBIIIt, erase Transmission DTCs.
Road test the Vehicle.
With the DRBIIIt, read Transmission DTCs.
Does the DTC, ENGINE OVERSPEED, reset?All
Ye s!Go To 5
No!Replacing the ECM has corrected the problem. Perform the
Powertrain Verification test.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
5 If there are no possible causes remaining, view repair. All
Repair
Replace the TCM.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
61
TRANSMISSION - NAG1
ENGINE OVERSPEED ÐContinued

TEST ACTION APPLICABILITY
3 Ignition on, engine not running.
With the DRBIIIt, read Engine DTCs.
Are there any performance or bus related Engine DTCs present?All
Ye s!Refer to the Driveability category and perform the appropriate
symptom.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
No!Go To 4
4 Turn the ignition off to the lock position.
Replace and program the ECM per the Service Information.
With the DRBIIIt, erase Transmission DTCs.
Start the engine.
With the brakes firmly applied, shift the gear selector into drive.
With the DRBIIIt, read Transmission DTCs.
Did the DTC, ENGINE RPM MESSAGE, reset?All
Ye s!Replace the Transmission Control Module.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
No!Test Complete
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
63
TRANSMISSION - NAG1
ENGINE RPM MESSAGE ÐContinued