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Home >> GMC >> 1996 >> Forward Control 4.3 W >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Tests W/Codes - P Series (6.5L Diesel) >> Self-Diagnostic System >> Typical Tech 1 Data Values

Typical Tech 1 Data Values

NOTE: Information contained in the following table is typical of readings taken on vehicle with engine idling, upper radiator hose hot, throttle closed, transmission in Park or Neutral, closed loop status achieved and all accessories off (except as noted in tables). Not all devices and systems are used on all models. Refer to scan tool instructions provided by manufacturer for further information.
TYPICAL TECH 1 DATA VALUES

Tool Position Units Measured Nominal Data Value
A/C Compressor Engage/Disengage Disengage
A/C Relay Yes/No No
A/C Request On/Off Off
Act Inj Timing Degrees 3.5-6.0
APP Angle % 0
APP 1 Volts .45-.95
APP 2 Volts 4.0-4.5
APP 3 Volts 3.6-4.0
BARO kPa/Volt 3-5 Volts Varies With Altitude & BARO Pressure)
Boost Pressure kPa 60-103 (Varies With Altitude)
Boost Solenoid % 60-70
Brake Switch Opn/Clsd Opn
Calc A/C Load Ft Lbs 0
Crank Ref Missed # 0 (Missed)
Cruise Active On/Off Off
Cruise Brake Sw Opn/Clsd Clsd
Cruise Switch On/Off Off
Desired Idle RPM PCM Commanded
Des Inj Timing Degrees 3.5-6.0
Device Control Yes/No No
DTC Set This Ign Yes/No No
ECT F°/C° 185-221 (85-105) (Varies With Temp)
ECT Sensor Volts 1.7-2.2 (Varies With Temp)
Engine Load % 4-6
Engine Run Time Hr/Min/Sec Varies
Engine Speed RPM +/-100 From Desired
Engine Torque Ft Lbs 7-10
ESO Solenoid On/Off On
Front Axle Sw Unlocked/Locked Unlocked
Fuel Rate Mm Cubed 7-12
Fuel Temperature F°/C° 140-176 (60-80) (Varies With Temp)
Glow Plug Volts 0
Glow Plug System Disabled/Enabled Disabled
IAT F°/C° 140-176 (60-80) (Varies With Temp)
Ignition Volts Volts 12-15
Inj Pump Cam # 0 (Missed)
Ref Missed - -
Inj Pump Sol Closure Time Milsec 1.70-1.90
Lift Pump Volts 12-15
Lift Pump System Disabled/Enabled Enabled
MIL Light On/Off Off
MPH kp/h MPH kp/h 0-0
Resume Switch On/Off Off
Set Switch On/Off Off
Start-Up ECT F°/C° Varies (Depends On Start-Up ECT)
STS Light On/Off Off
TDC Offset Degrees +.75- To -1.95
TFT F°/C° 122-158 (50-70) Varies
TFT Sensor Volts 2.5-3.5
TR Switch Park/Neut, Rev, D1, D2, D3 Park
1-2 Sol/2-3 Sol On/Off On/Off
4WDL Mode Enabled/Disabled Disabled
# Of Curr DTCs # 0