Dodge ZB 2005 Service Manual page 1280

Symptom:
P1486-EVAP LEAK MONITOR PINCHED HOSE FOUND
When Monitored and Set Condition:
P1486-EVAP LEAK MONITOR PINCHED HOSE FOUND
When Monitored: Immediately after a cold start, with battery/ambient temperature
between 40 deg. F and 90 deg. F and coolant temperature within 10 deg. F of battery/
ambient.
Set Condition: LDP test must pass first. If the PCM suspects a pinched hose it will not set
a fault until it runs the evap purge flow monitor. If the purge monitor does not pass then
the pinched hose fault will be set.
GOOD TRIP EQUAL TO ZERO
EVAP CANISTER OBSTRUCTED
OBSTRUCTION IN HOSE/TUBE BETWEEN EVAP CANISTER AND PURGE SOLENOID
LDP PRESSURE HOSE OBSTRUCTED
LEAK DETECTION PUMP
TEST
1 Ignition on, engine not running.
With the DRBIII , read DTCs and record the related Freeze Frame data.
Is the Good Trip Counter displayed and equal to zero?
Yes → Go To 2
→ Refer to the INTERMITTENT CONDITION Symptom (Diagnos-
No
2 Pressurize the EVAP System. On Miller Tool #8404, hold down the remote smoke/air
start button and monitor the gauge.
When the flow meter gauge on the EELD reads 0 LPM, the EVAP system is
completely pressurized.
Disconnect the LDP Pressure hose at the EVAP Canister. The LDP Pressure hose is
the hose that connects the Evap Canister to the Leak Detection Pump.
Did the pressure drop when the hose was disconnected?
Yes → Go To 3
→ Replace the EVAP Canister.
No
POSSIBLE CAUSES
ACTION
tic Procedure).
Perform POWERTRAIN VERIFICATION TEST VER - 6.
Perform POWERTRAIN VERIFICATION TEST VER - 6.
DRIVEABILITY - GAS
159
APPLICABILITY
All
All