Program Override
- When trouble shooting a malfunction, the override feature allows testing of certain system functions regardless of normal program instructions. Upon selecting a test, that function's current operation will be represented as a percentage of its full range. This value will be displayed on the CCP panel. The display will alternate between "--" for 1 second followed by the normal program value for 10 seconds. This alternating display is a reminder that function is not currently being overridden.
- Touching "WARM" or "COOL" buttons on CCP panel begins override at which time display will no longer alternate to "--". Touching "WARM" button increases value while "COOL" button, decreases value. Upon release of button, display may either remain at override value or automatically return to normal program control. This depends on which function is being overridden at the time. If display remains at override value, normal program control can be resumed in one of 3 ways:
- Selection of another override test will cancel the current override.
- Selection of another system will cancel the current override.
- Overriding value beyond either extreme (0 or 99) will display "--" momentarily and then jump to opposite extreme. If button is released while "--" is displayed, normal program control will resume and display will again alternate.
- The override test type is unique in that any other test type within the selection system may be active at the same time. After selecting an override test, touching "OFF" button will allow selection of another test type. However, the CCP panel will continue to display selected override. By selecting another test type and test, while at the same time touching "WARM" or "COOL" button, it is possible to monitor effect of override on different vehicle parameters.
ECM OVERRIDE PARAMETERS
| Code |
Display |
Parameter |
| ES00 |
"NONE' |
No Active Overrides |
| ES01 |
"0-99" |
VCC Solenoid |
| ES02 |
"0-99" |
EGR Solenoid |
| ES03 |
"0-99" |
ISC Motor |
| ES04 |
"1-8" |
Injector Control |
| ES05 |
"0-99" |
Fuel Pump Relay |
| ES06 |
"0-99" |
Trans. Shift |
| ES07 |
"0-99" |
Cruise Feedback |