Scan Tool Data List
The Engine Electrical Scan Tool Data List contains all engine electrical related parameters that are available on the scan tool. The list is arranged in alphabetical order. A given parameter may appear in any one of the data lists, and in some cases may appear more than once, or in more than one data list in order to group certain related parameters together.
Use the Engine Electrical Scan Tool Data List only after the following is determined:
- The Diagnostic System Check - Vehicle is completed.
- No diagnostic trouble codes (DTCs)
- On-board diagnostics are functioning properly.
Scan tool values from a properly running engine may be used for comparison with the engine you are diagnosing. The Engine Electrical Scan Tool Data List represents values that would be seen on a normal running engine.
Only the parameters listed below are referenced in this service information for use in diagnosis. If all values are within the typical range described below, refer to Symptoms - Engine Electrical for diagnosis.
The column labeled Data List indicates where a parameter can be located on the scan tool. Refer to the scan tool operating manual for the exact locations of the data lists. The following is a description of each term listed:
- All
-
The Parameter is in all of the data lists indicated below.
- Body:
-
Body, BCM Data List
- Cooling/HVAC
-
Cooling/HVAC Data List
- Cruise/Traction
-
Cruise/Traction Data List
- Eng
-
Engine Data List
- Electrical/Theft
-
Electrical/Theft Data List
- EE
-
Enhanced Evaporative Emission (EVAP) Data
- FT
-
Fuel Trim Data List
- H2
-
Heated Oxygen Sensor (HO2S) Data List
- IG
-
Ignition System Data List
- IPC
-
IPC Data List
- MT
-
Manual Transmission Data List
- MF
-
Misfire Data List
- OD
-
Output Driver Data List
- TAC
-
Throttle Actuator Control (TAC) Data List
| Scan Tool Parameter | Data List | Parameter Range/Units | Typical Data Values |
|---|---|---|---|
| Engine Idling/Radiator Hose Hot/Closed Throttle/Park or Neutral/Closed Loop/Accessories Off | |||
| Alternator Input Signal | BCM, IPC | On/Off | On |
| Battery Voltage | Body, IPC | Volts | B+ |
| CPP Switch (If Equipped) | Cruise/Traction, MT, TAC | Applied/Released | Applied |
| Clutch Start Switch (If Equipped) | Electrical/Theft, MT | Applied/Released | Applied |
| Current Gear | IPC | Transmission Gear Position | Varies |
| 5-Volt Reference 1 | Cooling/HVAC, Eng, EE, IG, TAC | Volts | 4.5 Volts |
| 5-Volt Reference 2 | Cooling/HVAC, Eng, EE, IG, TAC | Volts | 4.5 Volts |
| GEN L-Terminal Signal Command | Electrical/Theft | Off/On | Off |
| GEN L-Terminal Signal | Electrical/Theft | % | 0-100% |
| Ignition 1 Signal | All | 0-25 Volts | 11.5-14.5 Volts |
| PNP Switch (If Equipped) | Electrical/Theft | Park/Neutral | Park/Neutral |
| Reverse Inhibit Solenoid Command | MT | Off/On | Off |
| Reverse Inhibit Solenoid Circuit Status | MT | OK, Incomplete, Short B+, Short Gnd/Open | OK |
| Starter Relay Circuit Status | Electrical/Theft, OD | OK, Incomplete, Short B+, Short Gnd/Open | OK |
| Starter Relay Command | Cruise/Traction, Electrical/Theft | Off/On | Off |
| TCC/Cruise Brake Pedal Switch | MT, TAC | Applied/Released | Release |
| TR Sw | Eng 2, EGR, FT | Transmission Gear Position | Varies |