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Home >> Dodge and Ram >> 2003 >> Durango Base, 5.9 Z, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 17 (Engine Controls - Self-Diagnostics - 3.9L & 5.9L) >> Diagnostic Tests >> DTC P1495: Leak Detection Pump Solenoid Circuit >> Testing

DTC P1495: Leak Detection Pump Solenoid Circuit: Testing

WARNING: This page is about a different car, the 2003 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn ignition on, with engine off. With the DRBIII(R) scan tool, read the DTCs and record the related freeze frame data. Is Good Trip Counter displayed and equal to zero? If yes, go to next step. If no, see INTERMITTENT CONDITION  under SELF-DIAGNOSTIC SYSTEM.
  2. Turn the ignition off. Disconnect the LDP harness connector. Turn ignition on, with engine off. With the DRBIII(R) scan tool, actuate the LDP. Using a 12-volt test light connected to ground, check the (K125) generator source circuit at the LDP harness connector. Does the test light illuminate brightly? If yes, go to next step. If no, repair the open in the (K125) generator source circuit.
  3. Turn the ignition off. Connect a 12-volt test light to a good 12-volt source. Turn ignition on, with engine off. With the DRBIII(R) scan tool, actuate the LDP. Probe the (K106) LDP solenoid control circuit with the test light while the LDP is actuating. Does the test light blink? If yes, go to next step. If no, go to step  5 .
  4. There are no possible causes remaining, replace the LDP.
  5. Turn the ignition off. Disconnect the PCM harness connectors. Measure the resistance of the (K106) LDP solenoid control circuit between the PCM harness connector and the LDP harness connector. Is the resistance less than 5.0 ohms? If yes, go to next step. If no, repair the open in the (K106) LDP solenoid control circuit.
  6. Measure the resistance between ground and the (K106) LDP solenoid control circuit at the LDP harness connector. Is the resistance less than 100 ohms? If yes, repair the short to ground in the (K106) LDP solenoid control circuit. If no, go to next step.
    7. NOTE: Before continuing, disconnect the PCM harness connectors and check the related wiring terminals for corrosion, damage or terminal push out. Repair as necessary.
  7. Using the wiring diagram as a guide, inspect the wire harness and connectors. Visually inspect the related wire harness. Look for any chafed, pierced, pinched, or partially broken wires. Visually inspect both the component and the PCM connectors. Pay particular attention to all power and ground circuits. If there are no possible causes remaining, replace and program the PCM. See PROGRAMMING  .
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