Faulty leak detection pump solenoid or pump assembly (internal open or short); Damaged, chafed or corroded wiring to the LDP solenoid; Poor connection or corroded terminals at the LDP connector; Blocked or damaged vacuum supply or pipework to the pump affecting its operation; Water or debris contamination in the pump, often from its location near the underside of the vehicle; Fault in the powertrain control module driver circuit.

P1495

Leak Detection Pump Solenoid Circuit Open Or Shorted.

Dodge
Powertrain
Manufacturer code
Low severity

How this code is built

P: SystemPowertrain
1: Defined byThe manufacturer
4: AreaAuxiliary emission controls
95: FaultThe specific fault in that area

What it means

P1495 on a Dodge means the powertrain control module has detected an open or shorted circuit in the leak detection pump (LDP) solenoid. The LDP is part of the evaporative emissions system and is used to pressurise the fuel vapour system to test it for leaks. The PCM saw a voltage or current on the solenoid circuit that did not match what it commanded, so it set the code and will usually stop running the EVAP leak test.

Symptoms

Malfunction indicator lamp illuminated
Failed emissions or readiness test, with the EVAP monitor not completing
Possible fuel smell around the vehicle in some cases
Often no noticeable change in driveability
Other EVAP codes stored alongside it, such as leak or vent faults

Possible causes

Faulty leak detection pump solenoid or pump assembly (internal open or short)likely
Damaged, chafed or corroded wiring to the LDP solenoidlikely
Poor connection or corroded terminals at the LDP connectorlikely
Blocked or damaged vacuum supply or pipework to the pump affecting its operationpossible
Water or debris contamination in the pump, often from its location near the underside of the vehiclepossible
Fault in the powertrain control module driver circuitrare

How to diagnose

Read all stored and pending codes and freeze frame data, and note any other EVAP codes
Check for any applicable technical service bulletins for the specific model and engine
Visually inspect the LDP, its vacuum lines and wiring harness for damage, chafing, water ingress or corrosion
Disconnect the LDP connector and check the terminals for corrosion, bent pins or poor tension
Check the solenoid circuit for supply voltage, ground and continuity against the wiring diagram for the specific model
Measure the solenoid coil resistance and compare it with the manufacturer specification
Using a suitable scan tool, command the LDP solenoid on and off and check that it responds
Clear the code, run the EVAP monitor drive cycle and confirm the fault does not return

How to fix

Replace the leak detection pump if the solenoid is open, shorted or out of specification
Repair or replace damaged wiring or the connector in the solenoid circuit
Clean or replace corroded terminals and secure the connector properly
Repair or replace blocked, split or disconnected vacuum lines to the pump
Dry out and address the source of water ingress, replacing the pump if it has been damaged
Diagnose and repair the PCM only after wiring and the pump have been fully ruled out

Can I keep driving?

Low severity

The car can normally be driven as the fault only affects the EVAP leak test, but book it in soon to avoid an emissions test failure. If you notice a strong fuel smell, have it checked promptly.

Guide written by AI from the code's definition. Confirm with a diagnosis before replacing parts.