Question about 2001 Jeep Grand Cherokee
What year make model and engine size (Liter) is this?
Posted on Oct 01, 2009
Leak Detection Pump (LDP) pressure switch problem - the solenoid circuit.
The actual error is that seen above.
This fault will normally occur when the state of the switch does not change when the solenoid is energized.
This code sets when the LDP Switch does not close correctly when the vacuum is let into the LDP. First check the vacuum to the LDP. If this measures OK you will need to check the battery voltage, then the state and continuity of the control wire and the switch state wire to the LDP. If the wiring to the LDP is OK then you can safely assume that the LDP switch is faulty and needs to be replaced.
If for any reason you do not have this fitted then your computer is at fault. You can reset it by disconnecting the battery from the computer for 30 mins and then reconnecting it. If the fault persists in displaying then you will need to get the computer replaced.
Posted on Sep 24, 2009
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Posted on Jan 02, 2017
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