| Table 1: | Body Control Module (BCM) |
| Table 2: | Engine Control Module (ECM) |
The scan tool data lists contain all of the cruise control related parameters that are available on the scan tool. The parameters in the list are arranged in alphabetical order. The data list column indicates the location of the parameter within the scan tool menu selections.
Use the scan tool data lists as directed by a diagnostic table or in order to supplement the diagnostic procedures. Begin all of the diagnostic procedures with Diagnostic System Check - Vehicle .
Use the scan tool data lists only after the following is determined:
| • | There is no published DTC procedure nor published symptom procedure for the customer concern. |
| • | The DTC or symptom procedure indicated by the Diagnostic System Check does not resolve the customer concern. |
The typical data values are obtained from a properly operating vehicle under the conditions specified in the first row of the scan tool data list table. Comparison of the parameter values from the suspect vehicle with the typical data values may reveal the source of the customer concern.
Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
Operating Conditions: Ignition ON/Engine Idling at Normal Operating Temperature/Vehicle is in Park or Neutral/Cruise On/Off Switch is Turned Off | |||
Cruise Control Switch | Cruise Control Data | On / Off / Resume / Set / Cancel / Error | Off |
Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
Operating Conditions: Ignition ON/Engine Idling at Normal Operating Temperature/Vehicle is in Park or Neutral/Cruise On/Off Switch is Turned Off | |||
BPP Circuit Signal | Cruise Control Data | Applied / Released | Released |
BPP Signal | Cruise Control Data | Applied / Released / Invalid | Released |
Cruise Cancel Switch | Cruise Control Data | Active / Inactive / Invalid | Inactive |
Cruise Control Active | Cruise Control Data | Active / Inactive / Invalid | Inactive |
Cruise Disengage (1-8) History | Cruise Control Data | Last reason for cruise control disengagement | Varies |
Cruise On/Off Switch | Cruise Control Data | On/Off | Off |
Cruise Resume/Accel. Switch | Cruise Control Data | Active / Inactive / Invalid | Inactive |
Cruise Set/Coast Switch | Cruise Control Data | Active / Inactive / Invalid | Inactive |
Engine Speed | Cruise Control Data | RPM | Varies |
Ext. Travel BPP Signal | Cruise Control Data | Applied / Released / Invalid | Released |
Ignition 1 Signal | Cruise Control Data | Volts | 12 to 16 Volts |
Reduced Engine Power | TAC Data | Active / Inactive | Inactive |
Vehicle Speed Circuit 2 Status | Cruise Control Data | OK / Short Gnd/Open / Incomplete / Short to B+ | OK |
Vehicle Speed Sensor | Cruise Control Data | km/h (mph) | 0 km/h (0 mph) |
