Grand Voyager V6-229 3.8L (1996)
The canister vent valve will unseal the system after completion of the test sequence as the pump diaphragm assembly moves to the full travel
position.
EVAP LEAK DETECTION PUMP SOLENOID
CIRCUIT OPERATION
Circuit F87 supplies battery voltage to the EVAP leak detection pump solenoid. The Powertrain Control Module (PCM) controls the ground path
for the solenoid on circuit K106. Circuit K106 connects to cavity 77 of the PCM.
The PCM also monitors the position of the leak detection pump diaphragm on circuit K107. Circuit 107 connects to cavity 72 of the PCM.
In the START or RUN position, the ignition switch connects circuit A1 from fuse 5 in the Power Distribution Center (PDC) to circuit A21. Circuit
A21 feeds circuit F87 through the 9 amp Positive Temperature Coefficient (PTC No.1) in the junction block.
