Chrysler RG Voyager. Manual - part 434

TEST

ACTION

APPLICABILITY

Turn the ignition off.
Disconnect the Fuel Pressure Sensor harness connector.
Disconnect the ECM harness connectors.
Measure the resistance of the Fuel Pressure Sensor Signal circuit.
Is the resistance below 10.0 ohms?

All

Yes

→ Go To 14

→ Repair the Fuel Pressure Sensor Signal circuit for an open.

Perform NO START VERIFICATION - VER-1.

Turn the ignition off.
Disconnect the Fuel Pressure Sensor harness connector.
Disconnect the ECM harness connectors.
Measure the resistance of the Fuel Pressure Sensor 5-volt Supply circuit.
Is the resistance below 10.0 ohms?

All

Yes

→ Go To 15

→ Repair the Fuel Pressure Sensor 5-volt Supply circuit for an open.

Perform NO START VERIFICATION - VER-1.

Turn the ignition off.
Disconnect the Fuel Pressure Sensor harness connector.
Disconnect the ECM harness connectors.
Measure the resistance of the Sensor Ground circuit.
Is the resistance below 10.0 ohms?

All

Yes

→ Replace the Fuel Pressure Sensor in accordance with the Service

Information.
Perform NO START VERIFICATION - VER-1.

→ Repair the Sensor Ground circuit for an open.

Perform NO START VERIFICATION - VER-1.

239

DRIVEABILITY - DIESEL

*ENGINE CRANKS BUT WILL NOT START —

Continued

Symptom:

*ENGINE WILL NOT CRANK

POSSIBLE CAUSES

BATTERY CABLE HIGH RESISTANCE

BATTERY CABLES

CLUTCH INTERLOCK SWITCH

CLUTCH INTERLOCK SWITCH OUTPUT CIRCUIT

ECM

IGNITION SWITCH START OUTPUT CIRCUIT OPEN

MECHANICAL PROBLEM

OPEN FUSED BATTERY (+) CIRCUIT

OPEN IGNITION SWITCH START OUTPUT

P/N SWITCH INPUT

SKREEM CODES PRESENT

STARTER MOTOR

STARTER RELAY

STARTER RELAY CONTROL CIRCUIT OPEN

STARTER RELAY CONTROL CIRCUIT SHORTED TO VOLTAGE

STARTER RELAY GROUND CIRCUIT OPEN

STARTER RELAY OUTPUT CIRCUIT OPEN

TEST

ACTION

APPLICABILITY

Turn the ignition off.
NOTE: The battery must be fully charged before diagnosing a no crank
condition.
Inspect the battery cables for corrosion, looseness or other problems.
Is there evidence of problems?

All

Yes

→ Repair as necessary.

Perform NO START VERIFICATION - VER-1.

→ Go To 2

Turn the ignition on.
With the DRBIII

t, read the SKREEM DTCs.

Does the DRBIII

t display any SKREEM DTCs?

All

Yes

→ Refer to symptom list for problems related to SKREEM.

Perform NO START VERIFICATION - VER-1.

→ Go To 3

240

DRIVEABILITY - DIESEL

TEST

ACTION

APPLICABILITY

Is the vehicle equipped with an automatic transmission?

All

Yes

→ Go To 4

→ Go To 10

Turn the ignition off.
Remove the Starter Relay from the IPM.
WARNING: THE TRANSMISSION MUST BE IN PARK/NEUTRAL AND THE
PARK BRAKE MUST BE SET FOR THIS TEST.
WARNING: THE ENGINE MAY CRANK IN THE NEXT STEP. WHEN THE
ENGINE IS CRANKING, 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.
Momentarily jumper Starter Relay connector cavities 30 and 87 in the PDC
connector.
Did the engine crank?

All

Yes

→ Go To 5

→ Go To 15

Turn the ignition off.
Place the transmission in Park or Neutral.
Remove the Starter Relay from the IPM.
Using a 12-volt test light connected to ground, check the Ignition Switch Start
Output circuit while turning the ignition switch to the START position.
Does the test light illuminate with the ignition switch in the START position?

All

Yes

→ Go To 6

→ Repair the Ignition Switch Start Output circuit for an open.

Perform NO START VERIFICATION - VER-1.

Turn the ignition off.
Remove the Starter Relay from the IPM.
Install a substitute relay in place of the Starter Relay.
Attempt to start the engine.
Does the engine crank?

All

Yes

→ Replace the Starter Relay.

Perform NO START VERIFICATION - VER-1.

→ Go To 7

Turn the ignition on.
With the DRBIII

t in Inputs/Outputs, read the Park/Neutral state while shifting the

transmission through all gears.
Does the DRB display the appropriate gear position when the gear selector is
changed to each gear?

All

Yes

→ Go To 8

→ Refer to the Service Information to diagnose to diagnose Park/

Neutral input from the TCM to the ECM.
Perform NO START VERIFICATION - VER-1.

241

DRIVEABILITY - DIESEL

*ENGINE WILL NOT CRANK —

Continued

TEST

ACTION

APPLICABILITY

Remove the Starter Relay.
Disconnect the ECM harness connectors.
Measure the resistance of the Starter Relay Control circuit between the IPM and the
ECM harness connector.
Is the resistance below 10.0 ohms?

All

Yes

→ Go To 9

→ Repair the Starter Relay Control Circuit for an open.

Perform NO START VERIFICATION - VER-1.

Turn the ignition off.
Remove the Starter Relay from the IPM.
Disconnect the ECM harness connectors.
Remove the ECM/PCM Relay from the IPM.
Connect a jumper wire between cavity 30 and cavity 87 of the ECM/PCM Relay
connector.
Turn the ignition on.
Measure the voltage of the Starter Relay Control circuit.
Is the voltage below 1.0 volt?

All

Yes

→ Replace the ECM in accordance with the Service Information.

Perform NO START VERIFICATION - VER-1.

→ Repair the Starter Relay Control Circuit for a short to voltage.

Perform NO START VERIFICATION - VER-1.

Turn the ignition off.
Remove the Starter Relay from the IPM.
WARNING: THE TRANSMISSION MUST BE IN NEUTRAL AND THE PARK
BRAKE MUST BE SET FOR THIS TEST.
WARNING: THE ENGINE MAY CRANK IN THE NEXT STEP. WHEN THE
ENGINE IS CRANKING, 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.
Momentarily jumper Starter Relay connector cavities 30 and 87 in the PDC
connector.
Did the engine crank?

All

Yes

→ Go To 11

→ Go To 15

Remove the Starter Relay from the IPM.
Using a 12-volt test light connected to ground, check the Ignition Switch Start
Output circuit while fully depressing the clutch pedal and turning the ignition switch
to the START position.
Does the test light illuminate with the ignition switch in the START position?

All

Yes

→ Go To 12

→ Go To 13

242

DRIVEABILITY - DIESEL

*ENGINE WILL NOT CRANK —

Continued

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