Engine Data Display Procedure
- Enter diagnostics and with code ".7.0" displayed on FDC, depress and release "LO" button on CCP. Code "E.9.0" should appear. It is possible to leave data series at any time and return to code ".7.0" by clearing ECM/BCM codes.
- To advance display, depress "HI" button on CCP. To return to a lower numbered parameter or jump directly from "E.9.0" to end of parameter list ("P.1.3") depress "LO" button on CCP.
- Parameter numbers "P.0.1-P.1.3" will be displayed for 1 second on FDC, followed by numerical value. The parameter value will be displayed for 9 seconds. Each parameter and value will be repeated until manually advanced to next parameter.
- When trouble shooting a malfunction, ECM data display can be used to compare vehicle with a vehicle that is functioning properly. A summary of parameters with ranges and display units is contained in the ENGINE DATA PARAMETERS table.
ENGINE DATA PARAMETERS (FWD DEVILLE & FLEETWOOD)
| Display |
Parameter |
Range |
| P.0.1 |
TPS |
-10-90° |
| P.0.2 |
MAP |
14-109 kPa |
| P.0.3 |
BARO |
61-103 kPa |
| P.0.4 |
Coolant Temp. |
-40-151°C |
| P.0.5 |
MAT |
-40-151°C |
| P.0.6 |
Injector Pulse |
0-99.9 ms |
| P.0.7 |
Oxygen Sensor |
0-1.14 volts |
| P.0.8 |
Spark Advance |
0-52° |
| P.0.9 |
Ignition Cycles |
0-50 |
| P.1.0 |
Battery Volts |
0-25.5 volts |
| P.1.1 |
Engine RPM |
0-6370 |
| P.1.2 |
Vehicle Speed |
0-255 MPH |
| P.1.3 |
ECM PROM I.D. |
0-255 |