Dodge Dakota (ND). Manual — part 726

P0443-EVAP PURGE SOLENOID CIRCUIT (CONTINUED)

3.

(K52) EVAP PURGE SOLENOID CONTROL CIRCUIT OPEN

Turn the ignition off.

Disconnect the C3 PCM harness connector.

CAUTION: Do not probe the PCM harness connectors. Probing
the PCM harness connectors will damage the PCM terminals
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 cir-
cuit from the Evap Purge Solenoid harness connector to the appropri-
ate terminal of special tool #8815.

Is the resistance below 5.0 ohms?

Yes

>> Go To 4

No

>> Repair the open in the (K52) EVAP Purge Solenoid Con-

trol circuit.

Perform POWERTRAIN VERIFICATION TEST. (Refer to 9
- ENGINE - STANDARD PROCEDURE)

4.

(K52) EVAP PURGE SOLENOID CONTROL CIRCUIT SHORTED TO GROUND

Measure the resistance between ground and the (K52) Evap Purge
Solenoid Control circuit in the Evap Purge Solenoid harness connec-
tor.

Is the resistance below 100 ohms?

Yes

>> Repair the short to ground in the (K52) EVAP Purge Sole-

noid Control circuit.

Perform POWERTRAIN VERIFICATION TEST. (Refer to 9
- ENGINE - STANDARD PROCEDURE)

No

>> Go To 5

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ENGINE ELECTRICAL DIAGNOSTICS

ND

P0443-EVAP PURGE SOLENOID CIRCUIT (CONTINUED)

5.

(K70) EVAP PURGE SOLENOID SIGNAL CIRCUIT OPEN

CAUTION: Do not probe the PCM harness connectors. Probing
the PCM harness connectors will damage the PCM terminals
resulting in poor terminal to pin connection. Install Miller Special
Tool #8815 to perform diagnosis.
Measure the resistance of the (K70) Evap Purge Solenoid Signal cir-
cuit from the EVAP Purge Solenoid harness connector to the appropri-
ate terminal of special tool #8815.

Is the resistance below 5.0 ohms?

Yes

>> Go To 6

No

>> Repair the open in the (K70) Evap Purge Solenoid Signal

circuit.

Perform POWERTRAIN VERIFICATION TEST. (Refer to 9
- ENGINE - STANDARD PROCEDURE)

6.

(K70) EVAP PURGE SOLENOID SIGNAL CIRCUIT SHORTED TO GROUND

Measure the resistance between ground and the (K70) Evap Purge
Solenoid Signal circuit in the Evap Purge Solenoid harness connector.

Is the resistance below 100 ohms?

Yes

>> Repair the short to ground in the (K70) Evap Purge Sole-

noid Signal circuit.

Perform POWERTRAIN VERIFICATION TEST. (Refer to 9
- ENGINE - STANDARD PROCEDURE)

No

>> Go To 7

ND

ENGINE ELECTRICAL DIAGNOSTICS

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P0443-EVAP PURGE SOLENOID CIRCUIT (CONTINUED)

7.

PCM

NOTE: Before continuing, check the PCM harness connector terminals for corrosion, damage, or terminal
push out. Repair as necessary.
Using the schematics as a guide, inspect the wire harness and connectors. Pay particular attention to all Power and
Ground circuits.

Were there any problems found?

Yes

>> Repair as necessary.

Perform POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)

No

>> Replace and program the Powertrain Control Module per Service Information.

Perform POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)

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ENGINE ELECTRICAL DIAGNOSTICS

ND

P0452-NVLD PRESSURE SWITCH STUCK CLOSED

ND

ENGINE ELECTRICAL DIAGNOSTICS

9 - 445