Table 1: | Body Control Module (BCM) |
Table 2: | Instrument Panel Cluster (IPC) |
Table 3: | Powertrain Control Module (PCM) |
The scan tool data lists contain all the instrument panel, gages, and console 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 OFF/Headlamps Off/Doors Closed/Trunk Closed/Park Brake Unapplied | |||
Battery Voltage | Charging Info | Volts | 9-16 V (Varies) |
Dimming Control Signal | Interior Lighting | Volts | Varies |
Driver Door Ajar Switch | Doors | Door Closed/Door Ajar | Door Closed |
Ext. Trunk/Liftglass Rel. Sw. | Body Rear End | Active/Inactive | Inactive |
Headlamp Switch | Exterior Lighting | Active/Inactive | Inactive |
Key in Ignition Status | Power Mode | Key In/Key Out | Key In |
Left Rear Door Ajar Sw. | Doors | Door Closed/Door Ajar | Door Closed |
Park Brake Switch | Inputs | Applied/Released | Released |
Parklamp Switch | Exterior Lighting | Active/Inactive | Inactive |
Passenger Door Ajar Switch | Doors | Door Closed/Door Ajar | Door Closed |
Right Rear Door Ajar Sw. | Doors | Door Closed/Door Ajar | Door Closed |
TR Sw. A/B/C/P | Inputs | HI/LOW HI/LOW HI/LOW HI/LOW | LOW HI HI LOW |
Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
---|---|---|---|
Operating Conditions: Ignition ON/Engine OFF/Seat Belt Buckled/High Beams Off/Park Brake Unapplied | |||
ABS Telltale | Lamp Status | On/Off | Off |
Air Bag Telltale | Lamp Status | Activated/Not Activated | Not Activated |
Battery Lamp | Lamp Status | On/Off | Off |
Change Oil Telltale | Lamp Status | On/Off | Off |
Coolant Temperature | Data | Celsius (Fahrenheit) | 85-105°C (185-220°F) |
Coolant Warning Lamp | Lamp Status | On/Off | Off |
Door Ajar Lamp | Lamp Status | On/Off | Off |
Engine Speed | Data | % | Varies |
Fuel Gage Position | Data | % | Varies |
High Beam Telltale | Lamp Status | On/Off | Off |
Incandescent Dimming PWM Cmd. | Data | % | Varies |
LCD Dimming | Data | % | Varies |
Oil Pressure Lamp | Lamp Status | On/Off | Off |
Pointer Dimming | Data | % | Varies |
Seatbelt Telltale | Lamp Status | On/Off | Off |
Service Engine Soon Lamp | Lamp Status | On/Off | Off |
Service Vehicle Soon Lamp | Lamp Status | On/Off | Off |
Transmission Range | Data | First Gear/Second Gear/Third Gear/Fourth Gear/Fifth Gear/Park/Reverse/Neutral/Drive/Invalid | Park |
Vehicle Speed | Data | km/h (mph) | 0 km/h (0 mph) |
Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
---|---|---|---|
Operating Conditions: Engine Idling/Normal Operating Temperature | |||
Cruise Control Active | IPC Data | Yes/No | No |
Engine Speed | Engine Data EGR Data EVAP Data Fuel Trim Data HO2S Data Ignition Data Misfire Data TAC Data Cooling/HVAC Data Cruise/Traction Data Electrical/Theft Data IPC Data | RPM | 100 RPM from Desired Idle Speed |
ECT Sensor | Engine Data EGR Data EVAP Data Fuel Trim Data HO2S Data Ignition Data Misfire Data TAC Data Cooling/HVAC Data IPC Data | Celsius (Fahrenheit) | 85-105°C (185-220°F) |
Engine Oil Life Remaining | IPC Data | % | Varies |
Engine Oil Pressure Switch | Engine Data IPC Data | OK/Low | OK |
Fuel Tank Level Remaining | EVAP Data IPC Data | % | Varies |
Fuel Level Sensor | EVAP Data IPC Data | Volts | Varies |
Generator Lamp Command | IPC Data | On/Off | Off |
Ignition 1 Signal | Engine Data EGR Data EVAP Data Fuel Trim Data HO2S Data Ignition Data Misfire Data TAC Data Output Driver Data Cooling/HVAC Data Cruise/Traction Data Electrical/Theft Data IPC Data | Volts | 9-16 V (Varies) |
MIL Circuit History | IPC Data | OK/Open/Short/Invalid State | OK |
MIL Command | Engine Data EGR Data EVAP Data Ignition Data IPC Data | On/Off | Off |
Vehicle Speed Sensor | Engine Data EGR Data EVAP Data Fuel Trim Data HO2S Data Ignition Data Misfire Data TAC Data Cooling/HVAC Data IPC Data | km/h (mph) | 0 km/h (0 mph) |
The scan tool data lists contain all the instrument panel, gages, and console related parameters that are available on the scan tool. The parameters in the list are arranged in alphabetical order.
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. |
Scan tool values from an vehicle that is operating correctly may be used for comparison with the vehicle you are diagnosing. The Scan Tool Data List represents the values that would be seen on a normal operating vehicle under the conditions specified in the first row of the Scan Tool Data List table.
Important: Do not use a scan tool that displays faulty data. The scan tool concern should be reported to the manufacturer. Use of a faulty scan tool may result in misdiagnosis and unnecessary parts replacement.
Scan Tool Parameter | System State | Expected Value | Description |
---|---|---|---|
Engine Idling / Operating Temperature / Closed Throttle / Park or Neutral / Closed Loop / Accessories Off | |||
ABS Telltale | On Off | - | This parameter displays On or Off. The state of the antilock brake system (ABS) indicator as commanded by the instrument panel cluster (IPC). |
Dimming Instrument Illumination | - | % | This parameter displays Percentage. |
Door Open Telltale | On Off | - | This parameter displays On or Off. The state of the door ajar indicator as commanded by the IPC. |
Driver Side Seat Belt Telltale | On Off | - | This parameter displays On or Off. The state of the fasten safety belt indicator as commanded by the IPC. |
Engine Coolant Temperature | - | °C | This parameter displays °C. The displayed coolant temperature gage value in the IPC. |
Engine Speed | - | RPM | This parameter displays RPM. The IPC monitors the engine speed signal circuit from the PCM via serial data. |
Fr. Fog Light Telltale (Front) | - | This parameter displays the status of the Front Fog Light Telltale. | |
Fuel Level | - | % | This parameter displays %. The IPC calculates the amount of fuel remaining in the tank based on the serial data messages from the PCM regarding fuel level. |
Fuel Level Telltale | On Off Flashing Invalid | - | This parameter displays the status of the Fuel Level Telltale. |
High Beam Telltale | On Off | - | This parameter displays the status of the High Beam Telltale. |
Odometer | - | km | This parameter displays the distance the vehicle has traveled. |
Oil Pressure Telltale | On Off | - | This parameter displays On or Off. The state of the engine oil pressure indicator as commanded by the IPC. |
Park Brake And Brake Fail Telltale | On Off | - | This parameter displays the status of the Park Brake and Brake Fail Telltale. |
Pointer Illumination Level | - | % | This parameter displays 0-100 percent. This is the dimming level of the gage pointers of the IPC. |
PRNDL Position | 1, 2, 3, 4, 5 P R N D Invalid | - | This parameter displays First Gear, Second Gear, Third Gear, Fourth Gear, Fifth Gear, Park, Reverse, Neutral, Drive, and Invalid. The state of the PRNDL indicator as commanded by the IPC. |
Rear Fog Light Telltale | On Off | - | This parameter displays the status of the Rear Fog Light Telltale. |
SRS Airbag Telltale | On Off | - | This parameter displays On or Off. The state of the air bag indicator as commanded by the IPC. |
SVS Lamp (Service Vehicle Soon) | On Off Flashing Not Used | - | This parameter displays On / Off or Flashing. The state of the service vehicle soon indicator as commanded by the IPC. |
Turn Left Signal Telltale | On Off | - | This parameter displays the status of each of the Turn Signal Telltales. |
Turn Right Signal Telltale | On Off | - | |
Vehicle Speed | - | km/h | This parameter displays 0-255 km/h (0-155 mph). The IPC monitors the vehicle speed signal circuit from the PCM via serial data. |