| Table 1: | F5 A/T 1 Message Scan Data Values 4.6L (VIN Y, 9) SFI |
| Table 2: | F6 A/T 2 Message Scan Data Values 4.6L (VIN Y, 9) SFI |
| Table 3: | F7 A/T 3 Message Scan Data Values 4.6L (VIN Y, 9) SFI |
If you have completed the On-Board Diagnostic (OBD) system check, if the diagnostics are functioning properly and if no DTCs display, you may use the Typical Scan Values in the table below for comparison within the appropriate transmission. These typical values are an average of display values recorded from normally operating vehicles. They represent the display from a normally functioning system.
You should never use a scan tool that displays faulty data. The condition should be reported to the manufacturer. The use of a faulty scan tool can result in misdiagnosis and the unnecessary replacement of parts.
Only the parameters listed below are used in this manual for diagnosing. If a scan tool displays other parameters, the values are not recommended by General Motors for use in diagnosis.
Scan tests are performed under the following conditions:
| • | Idle |
| • | Upper radiator hose is hot |
| • | Closed throttle |
| • | Park or Neutral |
| • | Closed Loop |
| • | Accessories OFF |
| • | Brake not applied |
Tech 1 Parameter | Units Displayed | Typical Scan Values |
|---|---|---|
MAF | g/s | 4-7 g/s |
Spark | degrees | 15° |
Engine Load | % | 2-5% |
Outside Air Temp | C°(F°) | varies |
MAP | kPa, V | 30-50 kPa, 1.5V @ 38 kPa |
Baro | kPa, V | 85-103 kPa |
IAT | C°(F°) | 0°-90°C (32°-194°F) |
Engine Speed | RPM | 675-775 RPM |
TP Sensor | V, degrees | 0.55V @ 8° |
TP Angle | % | 0% |
Ignition 1 | V | 12-14V |
Ignition 0 | V | 12-14V |
A/C Relay | On/Off | Off |
Cruise Engaged | Yes/No | No |
Odometer | mi | should match IPC |
MPH (KM/H) | mph (km/h) | 0 |
Traction Control | Inactive/Active | Inactive |
Power Enrichment | Inactive/Active | Inactive |
Delivered Torque | % | 11% |
Desired Idle | RPM | 550-750 RPM |
Engine Run Time | 0:00:00 | varies |
Active Trans. DTC | 0 | 0 |
TCC Brake Sw. | Applied/Released | Released |
1/2 Sol. | On/Off | On |
2/3 Sol. | On/Off | On |
TCC Enable | On/Off | On |
TCC Duty Cycle | % | 0% |
TCC Slip Speed | RPM | 30-50 RPM |
TCC Apply | psi | 0 |
TCC Commanded | psi | 0 |
TFT | C°(F°) | 90°-110°C (194°-230°F) |
ECT | C°(F°) | 90°-110°C (194°-230°F) |
ECT Sensor | V | 1.25-1.75V |
TFT Sensor | V | 1.25-1.75V |
Hot Mode | Yes/No | No |
Trans. Oil Life | % | varies |
Trans. ISS | RPM | 565-665 RPM |
Trans. OSS | RPM | 0 |
TFP Switch | On/Off | Off/On/Off |
Trans. Range | Park, Reverse, Neutral, Drive4, Drive3, Drive2, Drive1, Invalid | Park or Neutral |
Shift Mode Switch | Normal | Normal |
Tech 1 Parameter | Units Displayed | Typical Scan Values |
|---|---|---|
MAF | g/s | 4-7 g/s |
MAP | kPa, V | 30-50 kPa, 1.5V @ 38 kPa |
TP Sensor | V, degrees | 0.55V @ 8° |
Ignition 1 | V | 12-14V |
Ignition 0 | V | 12-14V |
PC Act. Current | amps | 1.01 amps |
PC Ref. Current | amps | 1.01 amps |
PC Duty Cycle | % | 58-68% |
TP Anglee | % | 0% |
PC Pressure | psi | varies |
PC Curr. Error | amps | 0 amps |
Current Gear | 1, 2, 3, 4 | 1 |
1/2 Sol. | On/Off | On |
2/3 Sol. | On/Off | Off |
1-2 Shift Time | s | varies |
2-3 Shift Time | s | varies |
1-2 Shift Error | s | varies |
2-3 Shift Error | s | varies |
3-4 Shift Time | s | varies |
3-4 Shift Error | s | varies |
Latest Shift | s | varies |
Latest Shift Err | s | varies |
Shift Delay | s | varies |
4-3 Shift Time | s | varies |
3-2 Shift Time | s | varies |
2-1 Shift Time | s | varies |
Shift Torque | lb ft | 0 |
Shift Pres. Err | psi | 0 |
Shift TP Angle | % | varies |
Shift Speed | RPM | varies |
Shift Press. | psi | varies |
1-2 Des. WOT | RPM | 0 |
Upshift | Yes/No | No |
DS in Progress | Yes/No | No |
Shift Started | Yes/No | No |
Shift Completed | Yes/No | Yes |
Torque Spark Ret | degrees | varies |
Torque Managed | Yes/No | No |
Gear ratio | 0.00 | varies |
Gear Box Torque | lb ft | 20-25 lb ft |
Engine Torque | lb ft | 20-25 lb ft |
Shift Mode Switch | Normal | Normal |
TCM Cal. ID | four digits | D104 |
TCM Software ID | four digits | 1603 |
Tech 1 Parameter | Units Displayed | Typical Data Value |
|---|---|---|
Adaptable Shift | Yes/No | No |
Shift Adapt Pres. | psi | 0 |
Upshift | Yes/No | No |
DS in Progress | Yes/No | No |
Shift Started | Yes/No | No |
Hot Mode | Yes/No | No |
TFT Sensor | V | varies |
GSTAP Shift | Yes/No | No |
GSTAP Act. | 0 | |
GSTAP Rev. Low | s | varies |
GSTAP Rev. High | s | varies |
GSTAP D4 Low | s | varies |
GSTAP D4 High | s | varies |
Trans. Range | Park, Reverse, Neutral, Drive4, Drive3, Drive2, Drive1, Invalid | Park or Neutral |
Steady St. Slip | RPM | 128 |
Steady St. Tap R | psi | varies |
Steady St. Tap D2 | psi | vaires |
Steady St. Mode | varies | |
Steady St. Tap D3 | T-psi | varies |
Steady St. Tap D3 | psi | varies |
Steady St. Tap D2 | T-psi | varies |
Steady St. Tap D2 | psi | varies |
Steady St. Tap L | T-psi | varies |
Steady State Tap | psi | varies |
Steady St. Tap D4 | T-psi | varies |
Steady St. Tap D4 | psi | varies |
1-2 Tap Low | psi | varies |
1-2 Tap High | psi | varies |
2-3 Tap Low | psi | varies |
2-3 Tap High | psi | varies |
3-4 Tap Low | psi | varies |
3-4 Tap High | psi | varies |
1-2 Accum. Low | psi | varies |
1-2 Accum. High | psi | varies |
2-3 Accum. Low | psi | varies |
2-3 Accum. High | psi | varies |
3-4 Accum. Low | psi | varies |
3-4 Accum. High | psi | varies |
Tap High Cell | psi | varies |
1-2 Des. WOT Tap | mph | 0 |
