Faulty leak detection pump solenoid or pump assembly with an internal open or short circuit; Damaged, chafed or corroded wiring between the pump and the control unit (open circuit, short to earth or short to voltage); Corroded, loose or water-damaged connector at the leak detection pump; Missing or blown power supply fuse or relay feeding the solenoid circuit; Fault in the engine control unit driver circuit; Previous underbody damage or repair work that has pinched or disturbed the harness.

P1495

Leak Detection Pump Solenoid Circuit Open Or Shorted.

Plymouth
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

On Plymouth models, P1495 means the engine control unit has found an open or shorted circuit in the Leak Detection Pump (LDP) solenoid, part of the evaporative emission leak test system. The control unit drives the solenoid to pressurise the fuel vapour system and check for leaks. It set the code because the electrical feedback from the solenoid circuit did not match what it expected, so the leak test cannot run properly.

Symptoms

Malfunction indicator lamp on
Evaporative system leak test does not complete, so the car may fail an emissions inspection
Fuel smell around the car in some cases
No noticeable change in driveability in most cases
Other evaporative codes stored alongside it

Possible causes

Faulty leak detection pump solenoid or pump assembly with an internal open or short circuitlikely
Damaged, chafed or corroded wiring between the pump and the control unit (open circuit, short to earth or short to voltage)likely
Corroded, loose or water-damaged connector at the leak detection pumplikely
Missing or blown power supply fuse or relay feeding the solenoid circuitpossible
Fault in the engine control unit driver circuitrare
Previous underbody damage or repair work that has pinched or disturbed the harnesspossible

How to diagnose

Read all stored and pending codes and note the freeze frame data, then check for related evaporative or power supply codes
Visually inspect the leak detection pump, its hoses and harness for damage, chafing, corrosion or water ingress; the location varies by model and engine
Disconnect and inspect the pump connector for bent, pushed-out or corroded terminals, and check the locking tabs
Check the relevant fuse and any relay in the solenoid supply, using the wiring diagram for the specific model
With the ignition off, measure the solenoid resistance and compare it with the manufacturer specification
Check the supply voltage and earth at the connector, and test the wiring to the control unit for continuity and for shorts to earth or voltage
Use a scan tool to command the pump or run the leak test if supported, and listen for the solenoid operating
Clear the code after repair and recheck that it does not return and that the evaporative monitor runs to completion

How to fix

Replace the leak detection pump or solenoid if its resistance or operation is out of specification
Repair or replace damaged wiring, and secure the harness away from sharp edges and heat
Clean or replace corroded or damaged connector terminals and reseal the connector
Replace the blown fuse or faulty relay once the cause of the overload has been found
Repair or replace the engine control unit only after the wiring and pump have been proven good and the manufacturer's procedure confirms the fault

Can I keep driving?

Low severity

The car is normally safe to drive because this fault only affects the evaporative leak test. Book it in soon, as the lamp will stay on and the car may fail an emissions inspection, and any fuel smell should be checked promptly.

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