P1861

Test 1 - 2:

Test 3 - 6:

SYMPTOM
P1861-SIPHON LINE DISCONNECTED

WHEN MONITORED
With the ignition key on.

SET CONDITION
PCM compares the primary tank level with the secondary tank level. If the the PCM detects the primary side lower than the secondary side by a calibrated amount the DTC will set.

POSSIBLE CAUSES
- Good trip equal to zero
- Visually inspect fuel tank
- Fuel level signal circuit shorted to ground
- Fuel level signal circuit open
- Ground circuit open
- Internal inspection of the fuel tank and siphon hose
- Fuel level sensor