de Zanga » 30 Noi 2005, 23:11
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1. Type - Type of Instrument Cluster:
0 4 cylinder petrol, low series, km
1 4 cylinder petrol, low series, mph
2 4 cylinder petrol, high series, km
3 4 cylinder petrol, high series, mph
4 4 cylinder diesel, low series, km
5 4 cylinder diesel, low series, mph
6 4 cylinder diesel, high series, km
7 4 cylinder diesel, high series, mph
8 6 cylinder 24V petrol, low series, km
9 6 cylinder 24V petrol, low series, mph
10 6 cylinder 24V petrol, high series, km
11 6 cylinder 24V petrol, high series, mph
12 6 cylinder diesel, low series, km (not installed on Scorpio)
13 6 cylinder diesel, low series, mph (not installed on Scorpio)
14 6 cylinder diesel, high series, km (not installed on Scorpio)
15 6 cylinder diesel, high series, mph (not installed on Scorpio)
16 6 cylinder 12V petrol, low series, km
17 6 cylinder 12V petrol, low series, mph
18 6 cylinder 12V petrol, high series, km
19 6 cylinder 12V petrol, high series, mph
Check that the instrument panel displays the correct instrument code. An incorrect Type code can mean that the instrument panel has been changed.
2. Speed Vehicle speed sensor. Shows the actual speed of the vehicle in KPH. This should be within +5% of the MPH.
3. Pulses
Shows the input frequency of the engine speed sensor, updated every second. This check allows the engine speed signal coming from the alternator, (12V V6, 2.5 TDi) or the EDIS (all others) to be measured and calibrated. Should show the following numbers at idle:
26 for 4 cylinder DOHC
40 for 6 cylinder 24V
52 for diesel types
200 for 6 cylinder 12V
4. Fuel
Fuel level in approximate litres.
Full should indicate 65 to 69 litres
O-C means open circuit - break in wiring connection with the fuel level sensor
S-C wiring connection short-circuited.
5. En9 t
This checks the engine coolant temperature sensor as a data signal between 20 to 255, disproportionate to temperature (i.e., high temp, low data number)
S-C means sensor is out of normal range.
When the temperature gauge needle is horizontal the display should read between 79 to 129
37 Maximum temperature
57 Bottom of red chaplet
79 to 159 Middle of Normal band
242 Middle of blue chaplet
255 Bottom
6. rEL 1
Tests that the ROM software release of the microprocessor is in the range of 0-999. This validates the processor function and should be a steady display.
If the number displayed is flashing then all functions of the cluster could be incorrect and the entire cluster must be replaced.
7. rEL 2
Tests that the Non Volatile Memory (NVM) software release level is in the range of 0-255. This validates the NVM and should be a steady display.
If the number displayed is flashing then all functions of the cluster could be incorrect and the entire cluster must be replaced.
NOTE: If the vehicle being tested is a police vehicle, it is normal for rEL 2 to flash.
8. bAtt
This mode checks the IGN voltage to the instrument panel. It does not check the battery connection to the cluster.
If the number displayed is an acceptable voltage then proceed to next test..
9. Air t
Tests the external air temperature sensor and connections. It shows the air temperature directly in Fahrenheit.
O-C is open circuit or less than -40F
S-C is short circuit or greater than 150F.
NOTE: this reading will not be the same as that displayed by the trip computer, the latter being corrected for possible heating of the sensor by the engine.
10. FL0
This mode tests the EECV and connections for fuel flow. The number displayed increments by one for every 10 fuel pulses received by the instrument cluster from the EECV since entering the feature. At 6553 the display will return to zero.
With IGN on and engine off (KOEO) the FLO should read zero (0). Start the engine and the FLO number should increment from 0 to 6553. If it does not it indicates a signal or loom fault. NOTE: starting the engine will abort the test sequence - press the button for 5 seconds again and press the button repeatedly to return to the FL0 test.
11. rAE
Running Average Economy. This figure represents an internal value of the average economy in MPG, from which the Range to Empty is calculated. The figure will be low after periods of extended idle etc and high after part-throttle cruising.
If an acceptable MPG figure is displayed continue to the next check.
If an unacceptable number is displayed this indicates a cluster fault.
12. button This test checks the fuel computer button resistance inputs and loom connections. Each number represents a range value for each single button pressed.
255 No button pressed
208 to 241 MODE only pressed
38 to 56 S only pressed
158 to 185 R only pressed.
If the display shows 255 when any button is pressed a wiring fault is indicated, or the button contacts inside the fuel computer may be dirty and require cleaning.
if the display shows a number less than 38 when any button is pressed this indicates a wiring fault.
13. L0 C
Low coolant sensor. This shows the value of the input, or S-C for a short circuit.
Reading 5-33 are normal readings.
The low coolant warning lamp should turn off after 5 seconds after starting. If this lamp extinguishes after starting then the LO C should show between 5 to 33. If the lamp stays on the value of the LO C should be higher than 33. If otherwise check wiring and sensor operation.
Note - late models where the coolant level sensor was deleted will show S-C
14. L0 S
Low screen-wash fluid sensor. This shows the value of the input, or S-C for a short circuit.
Reading 5-33 are normal readings.
The low washer warning lamp should turn off after 5 seconds after starting. If this lamp extinguishes after starting then the LO C should show between 5 to 33. If the lamp stays on the value of the LO C should be higher than 33. If otherwise check wiring and sensor operation.
Note - late models where the washer level sensor was deleted will show S-C
Scorpio II 2.0 16V Ultima // Scorpio II 2.3 16V Ghia // Scorpio II 2.9 24V Ghia Cosworth