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Dodge Sprinter. Manual - part 507

Symptom:

P229-INSTRUMENT CLUSTER MESSAGE - AMBIENT TEMPERA-
TURE SIGNAL PLAUSIBILITY

POSSIBLE CAUSES

INSTRUMENT CLUSTER DTC

TEST

ACTION

APPLICABILITY

NOTE: This DTC indicates the presents of a problem with the Ambient Temp
Sensor input to the Instrument Cluster.
View repair statement.

All

Yes

→ Refer to symptom list for problems related to Instrument Cluster.

Perform ROAD TEST VERIFICATION - VER-2.

197

DRIVEABILITY - DIESEL

Symptom:

P2306-SENSOR SUPPLY 2 VOLTAGE IS TOO HIGH

POSSIBLE CAUSES

BOOST PRESSURE SENSOR

FUEL PRESSURE SENSOR

VISUAL WIRING AND CONNECTOR INSPECTION

INTERMITTENT CONDITION

SENSOR SUPPLY VOLTAGE 2 SHORTED TO VOLTAGE

ENGINE CONTROL MODULE

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.
Start the engine.
Monitor the DRB for ECM DTCs.
Did this DTC set again?

All

Yes

→ Go To 2

→ Go To 6

Turn the ignition off.
Visually inspect the wiring and connectors associated with the Boost Pressure Sensor
and Fuel Pressure Sensor for problems that may result in a short circuit.
Were any problems found?

All

Yes

→ Repair or replace wiring/connectors as necessary.

Perform ROAD TEST VERIFICATION - VER-2.

→ Go To 3

Turn the ignition off.
Disconnect the Boost Pressure Sensor and Fuel Pressure Sensor harness connectors.
Disconnect the ECM harness connectors.
Remove the Engine Control Relay.
Connect a jumper wire between cavity 30 and cavity 87 of the Engine Control Relay
connector in Fuse Block No.1.
Turn the ignition on.
Measure the voltage at all circuits in the Fuel Pressure Sensor and Boost Pressure
Sensor harness connector cavities.
Is the voltage above 1.0 volt for any of the measurements?

All

Yes

→ Repair the circuit(s) that measured above 1.0 volt for a short to

voltage.
Perform ROAD TEST VERIFICATION - VER-2.

→ Go To 4

198

DRIVEABILITY - DIESEL

TEST

ACTION

APPLICABILITY

Turn the ignition off.
Disconnect the Fuel Pressure Sensor harness connector.
Turn the ignition on.
With the DRBIII

t, erase ECM DTCs.

Turn the ignition off for 10 seconds. Turn the ignition on.
With the DRBIII

t, read ECM DTCs.

Does the DRB display this DTC?

All

Yes

→ Go To 5

→ Replace the Fuel Pressure Sensor in accordance with the Service

Information.
Perform ROAD TEST VERIFICATION - VER-2.

Turn the ignition off.
Disconnect the Boost Pressure Sensor harness connector.
Turn the ignition on.
With the DRBIII

t, erase ECM DTCs.

Turn the ignition off for 10 seconds. Turn the ignition on.
With the DRBIII

t, read ECM DTCs.

Does the DRB display this DTC?

All

Yes

→ Replace and program the Engine Control Module in accordance

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

→ Replace the Boost Pressure Sensor.

Perform ROAD TEST VERIFICATION - VER-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.

199

DRIVEABILITY - DIESEL

P2306-SENSOR SUPPLY 2 VOLTAGE IS TOO HIGH —

Continued

Symptom:

P2306-SENSOR SUPPLY 2 VOLTAGE IS TOO LOW

POSSIBLE CAUSES

BOOST PRESSURE SENSOR

FUEL PRESSURE SENSOR

VISUAL WIRING AND CONNECTOR INSPECTION

INTERMITTENT CONDITION

SENSOR SUPPLY VOLTAGE 2 SHORTED TO GROUND

BOOST PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO SENSOR GROUND CIRCUIT

ENGINE CONTROL MODULE

FUEL PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO SENSOR GROUND CIRCUIT

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.
Turn the ignition on.
Monitor the DRB for ECM DTCs.
Did this DTC set again?

All

Yes

→ Go To 2

→ Go To 8

All

Yes

→ Repair or replace wiring/connectors as necessary.

Perform ROAD TEST VERIFICATION - VER-2.

→ Go To 3

Turn the ignition off.
Disconnect the Boost Pressure Sensor and Fuel Pressure Sensor harness connectors.
Disconnect the ECM harness connectors.
Measure the resistance between ground and all of the Fuel Pressure Sensor and
Boost Pressure Sensor harness connector cavities.
Is the voltage below 1000 ohms for any of the measurements?

All

Yes

→ Repair the circuit(s) that measured below 1000 ohms for a short to

ground.
Perform ROAD TEST VERIFICATION - VER-2.

→ Go To 4

200

DRIVEABILITY - DIESEL

Content .. 505 506 507 508 ..