Chrysler Voyager. Manual — part 91

TEST

ACTION

APPLICABILITY

3

Turn the ignition off.
Disconnect the Evap Purge Solenoid harness connector.
Disconnect the PCM harness connectors.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING
THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI-
NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL
MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Measure the resistance of the (K52) Evap Purge Solenoid Control circuit from the
Evap Purge Solenoid harness connector to the appropriate terminal of special tool
#8815.
Is the resistance below 5.0 ohms?

All

Yes

→ Go To 4

No

→ Repair the open in the (K52) Evap Purge Sol Control circuit.

Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.

4

Turn the ignition off.
Disconnect the Evap Purge Solenoid harness connector.
Disconnect the PCM harness connectors.
Measure the resistance between ground and the (K52) Evap Purge Sol Control circuit
at the Evap Purge Solenoid harness connector.
Is the resistance below 5.0 ohms?

All

Yes

→ Repair the short to ground in the (K52) Evap Purge Solenoid

Control circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.

No

→ Go To 5

5

Turn the ignition off.
Disconnect the Evap Purge Solenoid harness connector.
Disconnect the PCM harness connectors.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING
THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI-
NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL
MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Measure the resistance of the (K108) Evap Purge Sol Return circuit from the Evap
Purge Solenoid harness connector to the appropriate terminal of special tool #8815.
Is the resistance below 5.0 ohms?

All

Yes

→ Go To 6

No

→ Repair the open in the (K108) Evap Purge Sol Return circuit.

Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.

6

Turn the ignition off.
Disconnect the Evap Purge Solenoid harness connector.
Disconnect the PCM harness connectors.
Measure the resistance between ground and the (K108) Evap Purge Sol Return
circuit at the Evap Purge Solenoid harness connector.
Is the resistance below 5.0 ohms?

All

Yes

→ Repair the short to ground in the (K108) Evap Purge Solenoid

Return circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.

No

→ Go To 7

363

DRIVEABILITY - NGC

P0443-EVAP PURGE SOLENOID CIRCUIT —

Continued

TEST

ACTION

APPLICABILITY

7

NOTE: Before continuing, check the PCM harness connector terminals for
corrosion, damage, or terminal push out. Repair as necessary.
If there are no possible causes remaining, view repair.

All

Repair

Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.

364

DRIVEABILITY - NGC

P0443-EVAP PURGE SOLENOID CIRCUIT —

Continued

Symptom:

P0452-NVLD PRESSURE SWITCH SENSE CIRCUIT LOW

When Monitored and Set Condition:

P0452-NVLD PRESSURE SWITCH SENSE CIRCUIT LOW

When Monitored:

Immediately after engine start up.

Set Condition:

The PCM activates the NLVD Solenoid. If PCM does not see NVLD switch

open, an error is detected. One Trip Fault.

POSSIBLE CAUSES

GOOD TRIP EQUAL TO ZERO

NVLD SWITCH OPERATION

NVLD ASSEMBLY

(K52) EVAP PURGE SOL CONTROL CIRCUIT SHORTED TO GROUND

(K107) NVLD SWITCH SIGNAL CIRCUIT SHORTED TO GROUND

EVAP PURGE SOLENOID LEAKS/STUCK OPEN

PCM

TEST

ACTION

APPLICABILITY

1

Ignition on, engine not running.
With the DRBIII

t, read DTCs and record the related Freeze Frame data.

Is the Good Trip Counter displayed and equal to zero?

All

Yes

→ Go To 2

No

→ Refer to the INTERMITTENT CONDITION symptom in the

Driveability category.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.

2

Turn the ignition off.
Disconnect the EVAP Purge Solenoid harness connector.
Ignition on, engine not running.
Using a 12-volt test light, jumper across the EVAP Purge Solenoid harness connector.
With the DRBIII

t, actuate the EVAP Purge Solenoid.

Does the test light flash on and off?

All

Yes

→ Go To 3

No

→ Go To 7

365

DRIVEABILITY - NGC

TEST

ACTION

APPLICABILITY

3

NOTE: After disconnecting the Evap Purge Solenoid vacuum connections,
inspect the lines and solenoid for any signs of contamination from the EVAP
Canister. This may indicate a faulty rollover valve. Replace/repair as
necessary.
Turn the ignition off.
Disconnect the vacuum hoses at the Evap Purge Solenoid.
Using a hand vacuum pump, apply 10 in Hg to the

9CAN9 of the EVAP Purge

Solenoid.
NOTE: Monitor the vacuum gauge for at least 15 seconds.
Does the EVAP Purge Solenoid hold vacuum?

All

Yes

→ Go To 4

No

→ Replace the Evap Purge Solenoid.

Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.

4

Ignition on, engine not running.
Using the DRBIII

t, monitor the NVLD Switch State.

Does the DRBIII

t display the NVLD state OPEN?

All

Yes

→ Refer to the INTERMITTENT CONDITION symptom in the

Driveability category.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.

No

→ Go To 5

5

Turn the ignition on.
Using the DRBIII

t, monitor the NVLD Switch State.

Disconnect the NVLD electrical connector.
Does the Switch change from CLOSED to OPEN?

All

Yes

→ Replace the NVLD Assembly.

Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.

No

→ Go To 6

6

Turn the ignition off.
Disconnect the NVLD electrical harness connector.
Disconnect the PCM harness connector.
Measure the resistance between ground and the (K107) NVLD Switch Signal circuit
in the NVLD Assembly harness connector.
Is the resistance below 5.0 ohms?

All

Yes

→ Repair the short to ground in the (K107) NVLD Switch Signal

circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.

No

→ NOTE: Before continuing, check the PCM harness connector

terminals for corrosion, damage or terminal push out. Repair as
necessary. Replace and program the Powertrain Control Module
in accordance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.

366

DRIVEABILITY - NGC

P0452-NVLD PRESSURE SWITCH SENSE CIRCUIT LOW —

Continued