brakes MERCEDES-BENZ SPRINTER 2006 Repair Manual

Symptom:
STEERING ANGLE SENSOR CALIBRATION ERROR
POSSIBLE CAUSES
STEERING ANGLE SENSOR CALIBRATION ERROR
TEST ACTION APPLICABILITY
1NOTE: This is an informational DTC indicating that the Steering Angle
Sensor has not been Calibrated.
Turn the ignition on.
With the DRBIIIt, clear DTCs.
With the DRBIIIt, perform the Steering Angle Calibration under Miscellaneous
functions.
Turn the ignition off.
Turn the ignition on.
Test drive the vehicle and perform the Road Test Function.
With the DRBIII read DTCs.
Does this DTC reset?All
Ye s!Replace the Steering Angle Sensor in accordance with the Service
Information.
No!Test Complete.
65
BRAKES (CAB)

Symptom:
STEERING ANGLE SENSOR GREATER THAN 720 DEGREES
POSSIBLE CAUSES
STEERING ANGLE SENSOR INTERMITTENT DTC
STEERING COMPONENT INSPECTION
STEERING ANGLE SENSOR
TEST ACTION APPLICABILITY
1NOTE: If a system undervoltage or overvoltage DTC is set along with this
DTC, diagnose the system voltage DTC first.
NOTE: Electromagnetic (radio) interference can cause an intermittent
system malfunction by interrupting communication between the sensor
and the CAB.
NOTE: The Steering Angle Sensor is very sensitive to changes due to
alignment problems. The sensor must be recalculated using the DRBIIItif
alignment has been changed by more than 5 degrees.
Turn the ignition on.
With the DRBIIIt, erase DTCs.
Move the Steering Wheel from stop to stop several times.
With the DRBIIIt, read DTCs.
Does this DTC reset?All
Ye s!Go To 2
No!Go To 3
2NOTE: When the vehicle is in a turn, the ESP compares the Steering Angle
Sensor value and the speed of the inner and outer wheels to determine if the
values are plausible.
Inspect the front end and steering components for damage or misalignment.
Inspect the steering column and Steering Angle Sensor for correct mounting and
installation.
Inspect the tires and wheels to make sure that they are the correct size. All tires must
be the same size.
Were any problems found?All
Ye s!Repair or replace components as necessary in accordance with the
Service Information.
No!Replace the Steering Angle Sensor in accordance with the Service
Information.
66
BRAKES (CAB)

TEST ACTION APPLICABILITY
3 The condition that set this DTC is not present at this time.
Monitor the DRBIIItwhile wiggle testing the related harness and connectors. Look
for any related parameters to change or for the DTC to reset.
Inspect the related harness and connectors.
Look for any chafed, pierced, pinched, or partially broken wires.
Look for broken, bent, pushed out, or corroded terminals.
Inspect the tires and wheels to make sure that they are the correct size. All tires must
be the same size.
Inspect the steering column and Steering Angle Sensor for correct mounting and
installation.
Inspect the front end and steering components for damage or misalignment.
Were any problems found?All
Ye s!Repair as necessary.
No!Test Complete.
67
BRAKES (CAB)
STEERING ANGLE SENSOR GREATER THAN 720 DEGREES ÐContinued

Symptom:
STEERING ANGLE SENSOR IMPLAUSIBLE CAN SIGNAL
POSSIBLE CAUSES
STEERING ANGLE SENSOR INTERMITTENT DTC
STEERING ANGLE SENSOR CAN CIRCUIT OPEN
STEERING ANGLE SENSOR
ANTI-LOCK BRAKE CONTROLLER
TEST ACTION APPLICABILITY
1NOTE: If a system undervoltage or overvoltage DTC is set along with this
DTC, diagnose the system voltage DTC first.
NOTE: Electromagnetic (radio) interference can cause an intermittent
system malfunction by interrupting communication between the sensor
and the CAB.
NOTE: The Steering Angle Sensor is very sensitive to changes due to
alignment problems. The sensor must be recalculated using the DRBIIItif
alignment has been changed by more than 5 degrees.
Turn the ignition on.
With the DRBIIIt, erase DTCs.
Test drive the vehicle.
Using the DRBIIIt, perform the road test procedure.
With the DRBIIIt, read DTCs.
NOTE: If the ESP lamp remains illuminated after the test has completed, a
fault code will be set indicating the cause of the failure.
Does this DTC reset?All
Ye s!Go To 2
No!Go To 4
2 Turn the ignition off.
Disconnect the Steering Angle Sensor harness connector.
Disconnect the CAB harness connector.
Measure the resistance of the Steering Angle Sensor CAN(+) circuit.
Measure the resistance of the Steering Angle Sensor CAN(-) circuit.
Is the resistance above 5.0 ohms for either circuit?All
Ye s!Repair the Steering Angle Sensor CAN circuit for an open.
No!Go To 3
68
BRAKES (CAB)

TEST ACTION APPLICABILITY
3 Turn the ignition off.
Disconnect the Steering Angle Sensor harness connector.
Inspect the harness and connectors related to this circuit. If any problems are found,
repair as necessary.
If no problems are found, replace the Steering Angle Sensor in accordance with the
Service Information.
Turn the ignition on.
With the DRBIIIt, clear DTCs.
Using the DRBIIIt, perform the road test procedure.
With the DRBIIIt, read DTCs.
Does this DTC reset?All
Ye s!Replace the CAB in accordance with the Service Information.
No!Test Complete.
4 The condition that set this DTC is not present at this time.
Monitor the DRBIIItwhile wiggle testing the related harness and connectors. Look
for any related parameters to change or for the DTC to reset.
Inspect the related harness and connectors.
Look for any chafed, pierced, pinched, or partially broken wires.
Look for broken, bent, pushed out, or corroded terminals.
Were any problems found?All
Ye s!Repair as necessary.
No!Test Complete.
69
BRAKES (CAB)
STEERING ANGLE SENSOR IMPLAUSIBLE CAN SIGNAL ÐContinued

Symptom:
STEERING ANGLE SENSOR IMPLAUSIBLE VALUE
POSSIBLE CAUSES
STEERING ANGLE SENSOR INTERMITTENT DTC
STEERING COMPONENT INSPECTION
STEERING ANGLE SENSOR
TEST ACTION APPLICABILITY
1NOTE: If a system undervoltage or overvoltage DTC is set along with this
DTC, diagnose the system voltage DTC first.
NOTE: Electromagnetic (radio) interference can cause an intermittent
system malfunction by interrupting communication between the sensor
and the CAB.
NOTE: The Steering Angle Sensor is very sensitive to changes due to
alignment problems. The sensor must be recalculated using the DRBIIItif
alignment has been changed by more than 5 degrees.
Turn the ignition on.
With the DRBIIIt, erase DTCs.
With the DRBIIIt, recalculate the Steering Angle Sensor.
Move the Steering Wheel from stop to stop several times.
With the DRBIIIt, perform the road test procedure.
With the DRBIIIt, read DTCs.
Does this DTC reset?All
Ye s!Go To 2
No!Go To 3
2NOTE: When the vehicle is in a turn, the ESP compares the Steering Angle
Sensor value and the speed of the inner and outer wheels to determine if the
values are plausible.
Inspect the front end and steering components for damage or misalignment.
Inspect the steering column and Steering Angle Sensor for correct mounting and
installation.
Inspect the tires and wheels to make sure that they are the correct size. All tires must
be the same size.
Were any problems found?All
Ye s!Repair or replace components as necessary in accordance with the
Service Information.
No!Inspect the Steering Angle Sensor for proper installation. Inspect
the wiring and connectors. Repair as necessary. If no other
problems are found, replace the Steering Angle Sensor in accor-
dance with the Service Information.
70
BRAKES (CAB)

TEST ACTION APPLICABILITY
3 The condition that set this DTC is not present at this time.
Monitor the DRBIIItwhile wiggle testing the related harness and connectors. Look
for any related parameters to change or for the DTC to reset.
Inspect the related harness and connectors.
Look for any chafed, pierced, pinched, or partially broken wires.
Look for broken, bent, pushed out, or corroded terminals.
Inspect the tires and wheels to make sure that they are the correct size. All tires must
be the same size.
Inspect the steering column and Steering Angle Sensor for correct mounting and
installation.
Inspect the front end and steering components for damage or misalignment.
Were any problems found?All
Ye s!Repair as necessary.
No!Test Complete.
71
BRAKES (CAB)
STEERING ANGLE SENSOR IMPLAUSIBLE VALUE ÐContinued

Symptom:
STEERING ANGLE SENSOR IMPLAUSIBLE WHEEL SPEED
POSSIBLE CAUSES
STEERING ANGLE SENSOR INTERMITTENT DTC
STEERING COMPONENT INSPECTION
STEERING ANGLE SENSOR
TEST ACTION APPLICABILITY
1NOTE: If a system undervoltage or overvoltage DTC is set along with this
DTC, diagnose the system voltage DTC first.
NOTE: Electromagnetic (radio) interference can cause an intermittent
system malfunction by interrupting communication between the sensor
and the CAB.
NOTE: The Steering Angle Sensor is very sensitive to changes due to
alignment problems. The sensor must be recalculated using the DRBIIItif
alignment has been changed by more than 5 degrees.
Turn the ignition on.
With the DRBIIIt, erase DTCs.
Test drive the vehicle.
Using the DRBIIIt, perform the road test procedure.
With the DRBIIIt, read DTCs.
NOTE: If the ESP lamp remains illuminated after the test has completed, a
fault code will be set indicating the cause of the failure.
Does this DTC reset?All
Ye s!Go To 2
No!Go To 3
2NOTE: When the vehicle is in a turn, the ESP compares the Steering Angle
Sensor value and the speed of the inner and outer wheels to determine if the
values are plausible.
Inspect the front end and steering components for damage or misalignment.
Inspect the steering column and Steering Angle Sensor for correct mounting and
installation.
Inspect the tires and wheels to make sure that they are the correct size. All tires must
be the same size.
Inspect the left and right Wheel Speed Sensors to make sure they are connected
correctly, i.e. left harness connected to left sensor, etc.
Were any problems found?All
Ye s!Repair or replace components as necessary in accordance with the
Service Information.
No!Replace the Steering Angle Sensor in accordance with the Service
Information.
72
BRAKES (CAB)

TEST ACTION APPLICABILITY
3 The condition that set this DTC is not present at this time.
Monitor the DRBIIItwhile wiggle testing the related harness and connectors. Look
for any related parameters to change or for the DTC to reset.
Inspect the related harness and connectors.
Look for any chafed, pierced, pinched, or partially broken wires.
Look for broken, bent, pushed out, or corroded terminals.
Were any problems found?All
Ye s!Repair as necessary.
No!Test Complete.
73
BRAKES (CAB)
STEERING ANGLE SENSOR IMPLAUSIBLE WHEEL SPEED ÐContinued

Symptom:
STEERING ANGLE SENSOR INTERNAL FAULT
POSSIBLE CAUSES
STEERING ANGLE SENSOR INTERMITTENT DTC
STEERING ANGLE SENSOR
TEST ACTION APPLICABILITY
1NOTE: If a system undervoltage or overvoltage DTC is set along with this
DTC, diagnose the system voltage DTC first.
NOTE: Electromagnetic (radio) interference can cause an intermittent
system malfunction by interrupting communication between the sensor
and the CAB.
Turn the ignition on.
With the DRBIIIt, erase DTCs.
Move the Steering Wheel from stop to stop several times.
With the DRBIIIt, perform the road test procedure.
With the DRBIIIt, read DTCs.
NOTE: The Steering Angle Sensor is very sensitive to changes due to
alignment problems. The sensor must be recalculated using the DRBIIItif
alignment has been changed by more than 5 degrees.
Does this DTC reset?All
Ye s!Inspect the Steering Angle Sensor for proper installation. Inspect
the wiring and connectors. Repair as necessary. If no other
problems are found, replace the Steering Angle Sensor in accor-
dance with the Service Information.
No!Go To 2
2 The condition that set this DTC is not present at this time.
Monitor the DRBIIItwhile wiggle testing the related harness and connectors. Look
for any related parameters to change or for the DTC to reset.
Inspect the related harness and connectors.
Look for any chafed, pierced, pinched, or partially broken wires.
Look for broken, bent, pushed out, or corroded terminals.
Inspect the tires and wheels to make sure that they are the correct size. All tires must
be the same size.
Inspect the steering column and Steering Angle Sensor for correct mounting and
installation.
Inspect the front end and steering components for damage or misalignment.
Were any problems found?All
Ye s!Repair as necessary.
No!Test Complete.
74
BRAKES (CAB)