P0102 Low Hfm Sensor Signal (Circuit Open); P0103 High Hfm Sensor Signal (Circuit Short) - SSANGYONG 2004 Rexton 2.7XDi Workshop Manual

TROUBLE DIAGNOSIS TABLE
DTC Trouble
P0102 Low HFM Sensor Signal
(Circuit Open)
P0103 High HFM Sensor Signal
(Circuit Short)
DIAGNOSIS
DI ENG SM - 2004.4
Help
- HFM sensing values are lower than
minimum sensing values.
- Check the resistance in HFM sensor.
- Check the ECU wiring harness (open
and poor contact).
• Check the ECU pin #82 and #84 for
open circuit.
- Actual air mass flow vs. Output
voltages.
• -20 Kg/h: 0.47 V
• 0 Kg/h: 0.99 V
• 10 Kg/h: 1.2226 ~ 1.2398 V
• 15 Kg/h: 1.3552 ~ 1.3778 V
• 30 Kg/h: 1.6783 ~ 1.7146 V
• 60 Kg/h: 2.1619 ~ 2.2057 V
• 120 Kg/h: 2.7215 ~ 2.7762 V
• 250 Kg/h: 3.4388 ~ 3.5037 V
• 370 Kg/h: 3.8796 ~ 3.9511 V
• 480 Kg/h: 4.1945 ~ 4.2683 V
• 640 Kg/h: 4.5667 ~ 4.6469 V
- Replace the ECU if required.
- HFM sensing values are higher than
maximum sensing values.
- Check the resistance in HFM sensor.
- Check the ECU wiring harness (open
and poor contact).
• Check the ECU pin #82 and #84 for
open circuit.
- Actual air mass flow vs. Output
voltages.
• -20 Kg/h: 0.47 V
• 0 Kg/h: 0.99 V
• 10 Kg/h: 1.2226 ~ 1.2398 V
• 15 Kg/h: 1.3552 ~ 1.3778 V
• 30 Kg/h: 1.6783 ~ 1.7146 V
• 60 Kg/h: 2.1619 ~ 2.2057 V
• 120 Kg/h: 2.7215 ~ 2.7762 V
• 250 Kg/h: 3.4388 ~ 3.5037 V
• 370 Kg/h: 3.8796 ~ 3.9511 V
• 480 Kg/h: 4.1945 ~ 4.2683 V
• 640 Kg/h: 4.5667 ~ 4.6469 V
- Replace the ECU if required.
Torque Torque Delayed
Reduction Reduction Engine
(max.50%) (max.20%) Stop
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
DI10-27
Immediately Limp
Engine Home
Stop Mode