Monaco V6-182 3.0L SOHC (1990)
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Depressing the trip/time switch initiates Test 2 when the English/Metric switch is in the ENGLISH position.
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Depressing the trip/time switch initiates Test 3 when the English/Metric switch is in the METRIC position.
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Depressing the fuel/temp switch initiates Test 4 when the English/Metric switch is in the ENGLISH position.
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Depressing the fuel/temp switch initiates Test 5 when the English/Metric switch is in the METRIC position.
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Switching the key off exits self-diagnostics without resetting any fault conditions.
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Depressing the reset switch returns the trip computer to the time display and resets any fault conditions.
Test 1
The trip computer displays software revision level (there are three revision levels). Then the fuel tank size. The chart lists codes that will be displayed for
various tank sizes. The Premier, 17 gallon tank is represented by tank code number 4.
NOTE:
If the trip computer displays an ERR during test 1, replace the trip computer.
With version 2 software, every segment in the display is illuminated and extinguished. Segment testing continues until the trip/time button is pressed, the
fuel/temp button is pressed, or the self-diagnostics mode is exited. With version 3 software the previous display test is not performed. Version 3
maintains the display of software revision level and tank size code until trip/time or fuel/temp is pressed or until exit from self-diagnostics.
Tests 2 and 3 Tests 2 and 3 check the circuit of the exterior temperature sensor and the speed input circuit. TEST 2 (English Metric switch set on
ENGLISH)
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The Temp telltale lights.
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If a failure of the ambient air temperature sensor input is detected the display is "CO" for an open in the circuit, or "CS" for a short in the circuit.
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If no failure is detected, the instantaneous temperature will be displayed. TEST 3 (English Metric switch set on METRIC)
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The Average Speed telltale lights.
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The speed sensor frequency is displayed.
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This frequency begins at 0 and increase as the vehicle speed increases.
Tests 4 and 5 Tests 4 and 5 check the fuel level circuit and fuel now circuit. TEST 4 (English Metric switch set on ENGLISH)
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The Range telltale lights.
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If a failure of the fuel level sensor input is detected the display is "CO" for an open in the circuit, or "CS" if there is a short in the circuit.
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If no failures are detected, the fuel level will be displayed in liters. TEST 5 (English/Metric switch set on METRIC)
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The Instant Economy telltale lights.
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If a failure of the flow input is detected the display will be "CO"
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If a failure is not detected, the frequency of the fuel flow sensor will be displayed. This frequency will vary as the fuel consumption varies.
