Dodge Sprinter. Manual — part 445

Symptom List:

LATERAL ACCELERATION SENSOR CIRCUIT
LATERAL ACCELERATION SENSOR IMPLAUSIBLE

Test Note:

All symptoms listed above are diagnosed using the same tests.

The title for the tests will be LATERAL ACCELERATION
SENSOR CIRCUIT.

POSSIBLE CAUSES

LATERAL ACCELERATION SENSOR CIRCUIT INTERMITTENT DTC

STEERING COMPONENT INSPECTION

LATERAL ACCELERATION SENSOR CIRCUIT SHORT TO VOLTAGE

LATERAL ACCELERATION SENSOR CIRCUIT SHORT TO GROUND

LATERAL ACCELERATION SENSOR CIRCUIT OPEN

LATERAL ACCELERATION SENSOR

ANTI-LOCK BRAKE CONTROLLER

TEST

ACTION

APPLICABILITY

1

Turn the ignition off.
Turn the ignition on.
With the DRBIII

t, read DTCs. Record DTC information.

NOTE: 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.
With the DRBIII

t, erase DTCs.

Road test the vehicle and perform several braking maneuvers.
With the DRBIII

t, perform the road test procedure.

With the DRBIII

t, read DTCs.

Does this DTC reset?

All

Yes

→ Go To 2

No

→ Go To 7

2

NOTE: 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 Lateral Acceleration 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

Yes

→ Repair or replace components as necessary in accordance with the

Service Information.

No

→ Go To 3

36

BRAKES (CAB)

TEST

ACTION

APPLICABILITY

3

Turn the ignition off.
Disconnect the Lateral Acceleration Sensor harness connector.
Disconnect the CAB harness connector.
Turn the ignition on.
Measure the voltage on all 4 of the Lateral Acceleration Sensor signal circuits.
Measure the voltage of the Lateral Acceleration Sensor ground circuit.
There should be no voltage present on any of the circuits.
Measure the resistance between the Lateral Acceleration supply circuit and all 4 of
the Lateral Acceleration Sensor signal circuits.
The resistance between the circuits should be above 5.0 ohms.
Were there any problems found?

All

Yes

→ Repair the Lateral Acceleration Sensor circuit(s) for a short to

voltage.

No

→ Go To 4

4

Turn the ignition off.
Disconnect the Lateral Acceleration Sensor harness connector.
Disconnect the CAB harness connector.
Measure the resistance between the Lateral Acceleration Sensor ground and the 4
Lateral Acceleration Sensor signal circuits.
Measure the resistance between ground and the 4 Lateral Acceleration Sensor signal
circuits.
Measure the resistance between ground and the Lateral Acceleration Sensor supply
circuit.
Is the resistance below 5.0 ohms for any of the circuits?

All

Yes

→ Repair the Lateral Acceleration Sensor circuit(s) for a short to

ground.

No

→ Go To 5

5

Turn the ignition off.
Disconnect the Lateral Acceleration Sensor harness connector.
Disconnect the CAB harness connector.
Measure the resistance of the Lateral Acceleration Sensor supply circuit.
Measure the resistance of the Lateral Acceleration Sensor ground circuit.
Measure the resistance of the 4 Lateral Acceleration Sensor signal circuits.
Is the resistance above 5.0 ohms for any of the circuits?

All

Yes

→ Repair the Lateral Acceleration Sensor circuit(s) for an open

No

→ Go To 6

6

Turn the ignition off.
Disconnect the Lateral Acceleration 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 Lateral Acceleration Sensor in accordance with
the Service Information.
With the DRBIII

t, clear DTCs.

With the DRBIII

t, perform the road test procedure.

With the DRBIII

t, read DTCs.

Does this DTC reset?

All

Yes

→ Replace the CAB in accordance with the Service Information.

No

→ Test Complete.

37

BRAKES (CAB)

LATERAL ACCELERATION SENSOR CIRCUIT —

Continued

TEST

ACTION

APPLICABILITY

7

The condition that set this DTC is not present at this time.
Monitor the DRBIII

t while 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

Yes

→ Repair as necessary.

No

→ Test Complete.

38

BRAKES (CAB)

LATERAL ACCELERATION SENSOR CIRCUIT —

Continued

Symptom:

LATERAL ACCELERATION SENSOR INTERNAL FAULT

POSSIBLE CAUSES

LATERAL ACCELERATION SENSOR CIRCUIT INTERMITTENT DTC

LATERAL ACCELERATION SENSOR

TEST

ACTION

APPLICABILITY

1

Turn the ignition off.
Turn the ignition on.
With the DRBIII

t, read DTCs. Record DTC information.

NOTE: 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.
With the DRBIII

t, erase DTCs.

Road test the vehicle and perform several steering and braking maneuvers.
With the DRBIII

t, perform the road test procedure.

With the DRBIII

t, read DTCs.

Does this DTC reset?

All

Yes

→ Replace the Lateral Acceleration Sensor in accordance with the

Service Information.

No

→ Go To 2

2

The condition that set this DTC is not present at this time.
Monitor the DRBIII

t while 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

Yes

→ Repair as necessary.

No

→ Test Complete.

39

BRAKES (CAB)