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Engine-Codes OBDII Code List P1495 Dodge
P1495 Dodge
P1495 Dodge - EVAP Leak Detection Pump Solenoid Circuit Condition
3 ' Add Comment Possible causes
- Faulty Leak Detection Pump (LDP)
- Leak Detection Pump (LDP) harness is open or shorted
- Leak Detection Pump (LDP) poor electrical connection
What does this mean? When is the code detected?
Malfunction is detected when the Powertrain Control Module (PCM) detected the pump solenoid did not change status when activated,
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Possible a noticeable fuel odor caused by the release of fuel vapors
P1495 Dodge Description
The Evaporative emissions system is design to prevent the escape of fuel vapors from the fuel system. Leaks in the system, ca allow vapors to escape into the atmosphere. The leak detection system tests for EVAP system leaks and blockage.
During the self-diagnostics, the Powertrain Control Module (PCM) first checks the Leak Detection Pump (LDP) for electrical and mechanical faults. If the first checks pass, the PCM then uses the LDP to seal the vent valve and pump air into the system to pressurize it. If a leak is present, the PCM will continue pumping the LDP to replace the air that leaks out. The PCM determines the size of the leak based on how fast/long it must pump the LDP as it tries to maintain pressure in the system.
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P1495 Dodge EVAP Leak Detection Pump Solenoid Circuit Condition
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P1495 Dodge EVAP Leak Detection Pump Solenoid Circuit...
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SOURCE: Check Engine Light code on dodge caravan ec P1495
the leak detection pump pressurizes the evaporative system to check for leaks. the computer has detected there is a fault somewhere in the cicuit (wiring) that operates the pump.
SOURCE: i have a 1998 v
DTC P1495 - Leak Detection Pump Solenoid Circuit
WHEN MONITORED: Immediately after a cold start, with battery/ambient temperature between 4.4 °C (40 °F) . F and 32 °C (90 °F) . Coolant temperature within -12 °C (10 °F) of battery/ambient
SET CONDITION: The state of the solenoid circuit does not match the PCM's desired state.
POSSIBLE CAUSES:
* Wiring Harness Intermittent
* Leak Detection Pump
* Fused Ignition Switch Output
* LDP Solenoid Control Circuit Shorted To Ground
* LDP Solenoid Control Circuit Open
* PCM
Leak Detection Pump System
The evaporative emission system is designed to prevent the escape of fuel vapors from the fuel system. Leaks in the system, even small ones, can allow fuel vapors to escape into the atmosphere. Government regulations require on-board testing to make sure that the evaporative (EVAP) system is functioning properly. The leak detection system tests for EVAP system leaks and blockage. It also performs self-diagnostics. During self-diagnostics, the Powertrain Control Module (PCM) first checks the Leak Detection Pump (LDP) for electrical and mechanical faults. If the first checks pass, the PCM then uses the LDP to seal the vent valve and pump air into the system to pressurize it. If a leak is present, the PCM will continue pumping the LDP to replace the air that leaks out. The PCM determines the size of the leak based on how fast/long it must pump the LDP as it tries to maintain pressure in the system.
SYMPTOM: P1490-LOW SPEED FAN CONTROL RELAY CIRCUIT
WHEN MONITORED: With the ignition ON. Battery voltage greater than 10 volts .
SET CONDITION: An open or shorted circuit is detected in the radiator fan relay control circuit.
POSSIBLE CAUSES:
* Low Speed Radiator Fan Relay Intermittent Operation
* Intermittent Condition
* Fused Ignition Switch Output Circuit
* Low Speed Radiator Fan Relay Resistance
* Low Speed Radiator Fan Relay Control Circuit Open
* Low Speed Radiator Fan Relay Control Circuit Short To Ground
* PCM
Notes
The Transmission/Transaxle Controller monitors the malfunction of sensors and actuators relating to Transmission/Transaxle Control. If any malfunction is detected, they inform the PCM by sending a signal - By illuminating the MIL and by setting the P0700 code.
P0700 means that a code has been set in the Transmission/Transaxle Controller. If P0700 is present, check for Transmission/Transaxle codes.
Hope helps (remember comment and rated this).
SOURCE: can you please tell what
P1698
Chrysler
ECM fault-No CCD message from TCM Probable Cause[s] EVAP leak detection pump solenoid circuit condition Probable Cause[s]
- Failed ECM
P1495
Chrysler
- ECM detected the pump solenoid did not change status when activated
During evaporative system diagnosis, Leak Detection Pumps have mistakenly been replaced. A thorough inspection for pinched, kinked, or disconnected supply vacuum lines (as currently listed in the Powertrain Diagnostic Procedures) is a critical step in diagnosing DTC P1494 (LDP SW OR MECHANICAL FAULT). Additionally, the other evaporative leak faults (DTC P0442 - SMALL LEAK, P0455 - LARGE LEAK, and P0456 - VERY SMALL LEAK) should have the supply vacuum lines examined for pinches or kinks prior to any LDP component replacement.
The supply vacuum lines should be checked from the engine compartment all the way to the fuel tank, including the LDP and purge system.
NOTE: VERIFY ALL RELATED SUPPLY VACUUM LINE ROUTINGS FOR PINCHES, KINKS, OR DISCONNECTION'S BEFORE REPLACING LDP SYSTEM COMPONENTS.
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ECM fault-No CCD message from TCM
- Failed ECM
Probable Cause[s]
EVAP leak detection pump solenoid circuit condition
- ECM detected the pump solenoid did not change status when activated
Probable Cause[s]
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