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Engine Controls - Pin Voltage Charts GMC Sonoma Syclone

Pin Voltage Charts ~604 words

INTRODUCTION

"PIN VOLTAGE CHARTS" are supplied (when available) to reduce diagnostic time. Checking pin voltages at the electronic control unit determines if it is receiving and transmitting proper signals. Charts may also help determine if control unit harness is shorted or opened.

Note. All voltage tests should be performed with a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance, unless stated otherwise in testing procedures.

Note. These ECM voltage charts along with digital voltmeter can help save diagnosis time. Voltage readings may vary slightly depending on battery voltage and alternator output.

Note. The following conditions must be met before testing

  1. Engine at operating temperature.
  2. Engine in closed loop operation.
  3. Engine idling ("Engine Run" column).
  4. ALDL "test" terminal NOT grounded.
  5. "Scan" tester NOT installed.

2.5L "S" SERIES TRUCK

Note. Terminals not listed are not used or information is not available.

2.5L "S" SERIES TRUCK (24-PIN A-B CONNECTOR)

Pin (Wire Color)Ckt. No.CircuitVolts: Key OnVolts: Engine Running
A1 (Dk Grn/Wht)465Fuel Pump Relay Drive(1)14
A2 (Tan/Blk456Shift Light (M/T)1214
A2 (Tan/Blk)422TCC Control (A/T)1214
A3 (Gray)435EGR Control Solenoid120
A4 (Dk Blue)458A/C Relay Control(6)(6)
A4 (Blu/Wht)459A/C Relay Control(6)(6)
A5 (Brn/Wht)419SES Light Control014
A6 (Pnk/Blk)439IGN-ECM Fuse1214
A8 (Orange)461Serial Data(2)(2)
A9 (Wht/Blk)451Diagnostic Terminal55
A10 (Brown)437Speed Sensor Signal(3)(3)
A11 (Black)452CTS/TPS Sensor Ground00
A12 (Blk/Wht)450System Ground00
B1 (Orange)440Battery 12 Volts1214
B2 (Gray)120Fuel Pump Signal(1)14
B2 (Tan/Wht)120Fuel Pump Signal(1)14
B3 (Blk/Red)453EST Reference Low00
B5 (Ppl/Wht)430EST Reference High01.6
B8 (Grn/Blk)366A/C Signal(4)(4)
B8 (Grn/Wht)459A/C Signal(4)(4)
B10 (Orn/Blk)434P/N Switch Signal(5)(5)
(1) Battery voltage first two seconds. (2) Varies from 2 volts to 5 volts. (3) Varies from 0 to battery voltage depending on position of drive wheels. (4) 0 volts with A/C "OFF", battery voltage with A/C "ON". (5) 0 volts in neutral, battery voltage in gear. (6) 0 volts A/C "ON", battery voltage A/C "OFF".
(1)Battery voltage first two seconds.
(2)Varies from 2 volts to 5 volts.
(3)Varies from 0 to battery voltage depending on position of drive wheels.
(4)0 volts with A/C "OFF", battery voltage with A/C "ON".
(5)0 volts in neutral, battery voltage in gear.
(6)0 volts A/C "ON", battery voltage A/C "OFF".

2.5L "S" SERIES TRUCK (24-PIN A-B CONNECTOR)

2.5L "S" SERIES TRUCK (32-PIN C-D CONNECTOR)

Pin (Wire Color)Ckt. No.CircuitVolts: Key OnVolts: Engine Running
C3 (Lt Grn/Blk)444IAC "B" LowNot UsableNot Usable
C4 (Lt Grn/Wht)443IAC "B" HighNot UsableNot Usable
C5 (Lt Blu/Wht)441IAC "A" HighNot UsableNot Usable
C6 (Lt Blu/Blk)442IAC "A" LowNot UsableNot Usable
C8 (Blu/Orn)495P/S Switch12.314
C8 (Lt Blue)495P/S Switch12.314
C9 (Purple)495Crank Signal(1)0
C9 (Ppl/Wht)495Crank Signal(1)0
C10 (Yellow)410Coolant Temp Signal(2)(2)
C11 (Lt Grn)432MAP Signal4.71.0
C12 (Tan)472MAT Signal(2)(2)
C13 (Dk Blue)417TPS Signal(3)6
C14 (Gray)4165 Volt Ref MAP & TPS55
C16 (Orange)440Battery 12 Volts1214
D1 (Blk/Wht)450System Ground00
D1 (Tan/Wht)551System Ground00
D2 (Blk/Red)469MAP/MAT Sensor Ground00
D4 (White)423EST Control(6)1.0
D5 (Tan/Blk)424EST Bypass(6)4.75
D6 (Tan)413Oxygen Sensor Ground(6)(6)
D7 (Purple)412Oxygen Sensor Signal(4)(5)
D9 (Black)151Ground00
D10 (Black)151Ground00
D16 (Dk Blue)467Injector A1214
(1) Battery voltage when cranking. (2) About 1.0 volt, varies with temperature. (3) .6 volt to about 4.8 volts at Wide Open Throttle (WOT). (4) .26 to .46 volts. (5) Varies from .1 volt to .9 volt. (6) Less than .5 volt.
(1)Battery voltage when cranking.
(2)About 1.0 volt, varies with temperature.
(3).6 volt to about 4.8 volts at Wide Open Throttle (WOT).
(4).26 to .46 volts.
(5)Varies from .1 volt to .9 volt.
(6)Less than .5 volt.

2.5L "S" SERIES TRUCK (32-PIN C-D CONNECTOR)

2.8L "S" SERIES TRUCK (24-PIN A-B CONNECTOR)

Pin (Wire Color)Ckt. No.CircuitVolts: Key OnVolts: Engine Running
A1 (Blk/Wht)465Fuel Pump Relay Drive(1)14
A1 (Tan/Wht)465Fuel Pump Relay Drive(1)14
A2 (Brown)459A/C Relay Control(5)(5)
A4 (Gray)435EGR Control1214
A5 (Brn/Wht)419"SES" Light Control014
A6 (Pnk/Blk)439IGN-ECM Fuse1214
A7 (Tan/Blk)419M/T Shift Light1214
A8 (Orange)461Serial Data(2)(2)
A9 (Wht/Blk)451Diagnostic Terminal55
A10 (Brown)437Vehicle Speed Sensor(3)(3)
A11 (Purple)455MAP Sensor Ground00
A12 (Blk/Wht)450System Ground00
B1 (Orange)440Battery 12 Volts1214
B2 (Tan/Wht)120Fuel Pump Signal(1)14
B3 (Blk/Red)453EST Reference Low00
B5 (Ppl/Wht)430EST Reference High01.6
B7 (Black)485ESC Signal99
B8 (Dk Grn)59A/C Signal(4)(4)
(1) Battery voltage first two seconds. (2) Varies from 2 volts to 5 volts. (3) Varies from 0 to battery voltage depending on position of drive wheels. (4) 0 volts with A/C "OFF", battery voltage with A/C "ON". (5) 0 volts A/C "ON", battery voltage A/C "OFF".
(1)Battery voltage first two seconds.
(2)Varies from 2 volts to 5 volts.
(3)Varies from 0 to battery voltage depending on position of drive wheels.
(4)0 volts with A/C "OFF", battery voltage with A/C "ON".
(5)0 volts A/C "ON", battery voltage A/C "OFF".

2.8L "S" SERIES TRUCK (24-PIN A-B CONNECTOR)

2.8L "S" SERIES TRUCK (32-PIN C-D CONNECTOR)

Pin (Wire Color)Ckt. No.CircuitVolts: Key OnVolts: Engine Running
C2 (Brown)436Elec. Air Control Sol1214
C3 (Lt Grn/Blk)444IAC "B" LowNot UsableNot Usable
C4 (Lt Grn/Wht)443IAC "B" HighNot UsableNot Usable
C5 (Lt Blu/Wht)441IAC "A" HighNot UsableNot Usable
C6 (Lt Blu/Blk)442IAC "A" LowNot UsableNot Usable
C9 (Ppl/Wht)806Crank Signal(1)0
C10 (Yellow)410Coolant Temp Signal(2)(2)
C11 (Lt Grn)432MAP Signal4.81.0
C13 (Dk Blue)417TPS Signal(3)6
C14 (Gray)4165 Volt Ref MAP & TPS55
C16 (Orange)440Battery 12 Volts1214
D1 (Tan/Wht)551System Ground00
D2 (Black)452TPS/CTS Sensor Ground00
D4 (White)423EST Control(6)1.0
D5 (Tan/Blk)424EST Bypass(6)4.75
D6 (Tan)413Oxygen Sensor Ground(6)(6)
D7 (Purple)412Oxygen Sensor Signal(4)(5)
D14 (Dk Grn)468Injector B1214
D16 (Dk Blue)467Injector A1214
(1) Battery voltage when cranking. (2) About 1.0 volt, varies with temperature. (3) .6 volt to about 4.8 volts at Wide Open Throttle (WOT). (4) .26 to .46 volts. (5) Varies from .1 volt to .9 volt. (6) Less than .5 volt.
(1)Battery voltage when cranking.
(2)About 1.0 volt, varies with temperature.
(3).6 volt to about 4.8 volts at Wide Open Throttle (WOT).
(4).26 to .46 volts.
(5)Varies from .1 volt to .9 volt.
(6)Less than .5 volt.

2.8L "S" SERIES TRUCK (32-PIN C-D CONNECTOR)

4.3L "S" & "T" SERIES TRUCK & "M" & "L" SERIES VAN (24-PIN A-B CONNECTOR)

Pin (Wire Color)Ckt. No.CircuitVolts: Key OnVolts: Engine Running
A1 (Dk Grn/Wht)465Fuel Pump Relay Drive(1)14
A2 (Dk Grn/Wht)459A/C Clutch Control(6)(6)
A4 (Gray)435EGR Control1214
A5 (Brn/Wht)419"SES" Light Control014
A6 (Pnk/Blk)439IGN-ECM Fuse1214
A7 (Tan/Blk)422TCC Control1214
A8 (Orange)461Serial Data(2)(2)
A8 (Orn/Blk)461Serial Data(2)(2)
A9 (Wht/Blk)451Diagnostic Terminal55
A10 (Brown)437Vehicle Speed Sensor(3)(3)
A11 (Black)452TPS, CTS Sensor Ground00
A12 (Blk/Wht)450System Ground00
B1 (Orange)440Battery 12 Volts1214
B2 (Gray)120Fuel Pump Signal(1)14
B2 (Tan/Wht)120Fuel Pump Signal(1)14
B3 (Blk/Red)453EST Reference Low00
B5 (Ppl/Wht)430EST Reference High01.6
B7 (Black)485ESC Signal99
B8 (Dk Grn)59A/C Signal(4)(4)
B10 (Orn/Blk)434P/N Switch Signal(5)(5)
(1) Battery voltage first two seconds. (2) Varies. (3) Varies from 0 to battery voltage depending on position of drive wheels. (4) 0 volts with A/C "OFF", battery voltage with A/C "ON". (5) 0 volts in neutral, battery voltage in ge (6) 0 volts A/C "ON", battery voltage A/C "OFF".
(1)Battery voltage first two seconds.
(2)Varies.
(3)Varies from 0 to battery voltage depending on position of drive wheels.
(4)0 volts with A/C "OFF", battery voltage with A/C "ON".
(5)0 volts in neutral, battery voltage in ge
(6)0 volts A/C "ON", battery voltage A/C "OFF".

4.3L "S" & "T" SERIES TRUCK & "M" & "L" SERIES VAN (24-PIN A-B CONNECTOR)

4.3L "S" & "T" SERIES TRUCK & "M" & "L" SERIES VAN (32-PIN C-D CONNECTOR)

Pin (Wire Color)Ckt. No.CircuitVolts: Key OnVolts: Engine Running
C3 (Lt Grn/Blk)444IAC "B" LowNot UsableNot Usable
C4 (Lt Grn/Wht)443IAC "B" HighNot UsableNot Usable
C5 (Lt Blu/Wht)441IAC "A" HighNot UsableNot Usable
C6 (Lt Blu/Blk)442IAC "A" LowNot UsableNot Usable
C7 (Lt Blue)446Hi Gear Switch Signal1214
C9 (Purple)806Crank Signal(1)0
C9 (Ppl/Wht)806Crank Signal(1)0
C10 (Yellow)410Coolant Temp Signal(2)(2)
C11 (Lt Grn)432MAP Sensor Signal4.81.0
C11 (Lt Grn/Blk)432MAP Sensor Signal4.81.0
C13 (Dk Blue)417TPS Signal(3).6
C14 (Gray)4165 Volt Ref MAP & TPS55
C16 (Orange)440Battery 12 Volts1214
D1 (Blk/Wht)450System Ground00
D1 (Blk/Wht)551System Ground00
D2 (Purple)455MAP Sensor Ground00
D2 (Blk/Red)455MAP Sensor Ground00
D4 (White)423EST(6)1.0
D5 (Tan/Blk)424EST Bypass(6)4.75
D6 (Tan)413Oxygen Sensor Ground(6)(6)
D7 (Purple)412Oxygen Sensor Signal(4)(5)
D14 (Green)468Injector 2 Driver1214
D16 (Blue)467Injector 1 Driver1214
(1) Battery voltage when cranking. (2) About 1.0 volt, varies with temperature. (3) .6 volt to about 4.8 volts at Wide Open Throttle (WOT). (4) .26 to .46 volts. (5) Varies from .1 volt to .9 volt. (6) Less than .5 volt.
(1)Battery voltage when cranking.
(2)About 1.0 volt, varies with temperature.
(3).6 volt to about 4.8 volts at Wide Open Throttle (WOT).
(4).26 to .46 volts.
(5)Varies from .1 volt to .9 volt.
(6)Less than .5 volt.

4.3L "S" & "T" SERIES TRUCK & "M" & "L" SERIES VAN (32-PIN C-D CONNECTOR)

4.3L & 5.7L "G" SERIES VAN (24-PIN A-B CONNECTOR)

Pin (Wire Color)Ckt. No.CircuitVolts: Key OnVolts: Engine Running
A1 (Dk Grn/Wht)465Fuel Pump Relay Drive(1)14
A4 (Gray)435EGR Control1214
A5 (Brown)419"SES" Light Control014
A6 (Pnk/Blk)439IGN-ECM Fuse1214
A7 (Tan/Blk)422TCC Control1214
A8 (Orange)461Serial Data(2)(2)
A9 (Blk/Wht)451Diagnostic Terminal55
A10 (Brown)437Vehicle Speed Sensor(3)(3)
A11 (Black)452TPS, CTS Sensor Ground00
A12 (Blk/Wht)450System Ground00
B1 (Orange)440Battery 12 Volts1214
B2 (Tan/Wht)120Fuel Pump Signal(1)14
B3 (Blk/Red)453EST Reference Low00
B5 (Ppl/Wht)430EST Reference High01.6
B7 (Black)485ESC Signal99
B8 (Dk Grn)59A/C Signal(4)(4)
B10 (Orn/Blk)434P/N Switch Signal(5)(5)
(1) Battery voltage first two seconds. (2) Varies. (3) Varies from 0 to battery voltage depending on position of drive wheels. (4) 0 volts with A/C "OFF", battery voltage with A/C "ON". (5) 0 volts in neutral, battery voltage in gear.
(1)Battery voltage first two seconds.
(2)Varies.
(3)Varies from 0 to battery voltage depending on position of drive wheels.
(4)0 volts with A/C "OFF", battery voltage with A/C "ON".
(5)0 volts in neutral, battery voltage in gear.

4.3L & 5.7L "G" SERIES VAN (24-PIN A-B CONNECTOR)

4.3L & 5.7L "G" SERIES VAN (32-PIN C-D CONNECTOR)

Pin (Wire Color)Ckt. No.CircuitVolts: Key OnVolts: Engine Running
C2 (Brown)436EAC Solenoid1214
C3 (Lt Grn/Blk)444IAC "B" LowNot UsableNot Usable
C4 (Lt Grn/Wht)443IAC "B" HighNot UsableNot Usable
C5 (Lt Blu/Wht)441IAC "A" HighNot UsableNot Usable
C6 (Lt Blu/Blk)442IAC "A" LowNot UsableNot Usable
C7 (Lt Blue)446Hi Gear Switch Signal1214
C9 (Purple)806Crank Signal(1)0
C10 (Yellow)410Coolant Temp Signal(2)(2)
C11 (Lt Grn)432MAP Signal4.81.0
C13 (Dk Blue)417TPS Signal(3)6
C14 (Gray)4165 Volt Ref MAP & TPS55
C16 (Orange)440Battery 12 Volts1214
D1 (Blk/Wht)450System Ground00
D2 (Purple)455MAP Sensor Ground00
D4 (White)423EST Control(6)1.0
D5 (Tan/Blk)424EST Bypass(6)4.75
D6 (Tan)413Oxygen Sensor Ground(6)(6)
D7 (Purple)412Oxygen Sensor Signal(4)(5)
D14 (Green)468Injector 2 Driver1214
D16 (Blue)467Injector 1 Driver1214
(1) Battery voltage when cranking. (2) About 1.0 volt, varies with temperature. (3) .6 volt to about 4.8 volts at Wide Open Throttle (WOT). (4) .26 to .46 volts. (5) Varies from .1 volt to .9 volt. (6) Less than .5 volt.
(1)Battery voltage when cranking.
(2)About 1.0 volt, varies with temperature.
(3).6 volt to about 4.8 volts at Wide Open Throttle (WOT).
(4).26 to .46 volts.
(5)Varies from .1 volt to .9 volt.
(6)Less than .5 volt.

4.3L & 5.7L "G" SERIES VAN (32-PIN C-D CONNECTOR)

4.3L, 5.0L & 5.7L "C" & "K" SERIES VAN W/O 4L80-E A/T

Note. Terminals not listed are not used or information is not available.

4.3L, 5.0L & 5.7L "C" & "K" SERIES VAN W/O 4L80-E A/T (24-PIN A-B CONNECTOR)

Pin (Wire Color)Ckt. No.CircuitVolts: Key OnVolts: Engine Running
A1 (Dk Grn/Wht)465Fuel Pump Relay Drive(1)14
A4 (Gray)435EGR Control1214
A5 (Brown)419"SES" Light Control014
A6 (Pnk/Blk)439IGN-ECM Fuse1214
A7 (Tan/Blk)422TCC Control1214
A8 (Orange)461Serial Data(2)(2)
A9 (Wht/Blk)451Diagnostic Terminal55
A10 (Brown)437Vehicle Speed Sensor(3)(3)
A11 (Purple)455MAP Sensor Ground00
A12 (Blk/Wht)450System Ground00
B1 (Orange)440Battery 12 Volts1214
B2 (Gray)120Fuel Pump Signal(1)14
B3 (Blk/Red)453EST Reference Low00
B5 (Ppl/Wht)430EST Reference High01.6
B7 (Yel/Blk)457ESC Signal99
B8 (Dk Grn)59A/C Signal(4)(4)
B10 (Orn/Blk)434P/N Switch Signal(5)(5)
(1) Battery voltage first two seconds. (2) Varies. (3) Varies from 0 to battery voltage depending on position of drive wheels. (4) 0 volts with A/C "OFF", battery voltage with A/C "ON". (5) 0 volts in neutral, battery voltage in gear
(1)Battery voltage first two seconds.
(2)Varies.
(3)Varies from 0 to battery voltage depending on position of drive wheels.
(4)0 volts with A/C "OFF", battery voltage with A/C "ON".
(5)0 volts in neutral, battery voltage in gear

4.3L, 5.0L & 5.7L "C" & "K" SERIES VAN W/O 4L80-E A/T (24-PIN A-B CONNECTOR)

4.3L, 5.0L & 5.7L "C" & "K" SERIES VAN W/O 4L80-E A/T (32-PIN C-D CONNECTOR)

Pin (Wire Color)Ckt. No.CircuitVolts: Key OnVolts: Engine Running
C3 (Lt Grn/Blk)444IAC "B" LowNot UsableNot Usable
C4 (Lt Grn/Wht)443IAC "B" HighNot UsableNot Usable
C5 (Lt Blu/Wht)441IAC "A" HighNot UsableNot Usable
C6 (Lt Blu/Blk)442IAC "A" LowNot UsableNot Usable
C7 (Lt Blue)446Hi Gear Switch Signal1214
C9 (Ppl/Wht)806Crank Signal(1)0
C10 (Yellow)410CTS Signal(2)(2)
C11 (Lt Grn)432MAP Signal4.81.0
C13 (Dk Blue)417TPS Signal(3)6
C14 (Gray)4165 Volt Ref MAP & TPS55
C16 (Orange)440Battery 12 Volts1214
D1 (Blk/Wht)450System Ground00
D2 (Black)452TPS/CTS Sensor Ground00
D4 (White)423EST(6)1.0
D5 (Tan/Blk)424EST Bypass(6)4.75
D6 (Tan)413Oxygen Sensor Ground(6)(6)
D7 (Purple)412Oxygen Sensor Signal(4)(5)
D14 (Green)468Injector 2 Driver1214
D16 (Blue)467Injector 1 Driver1214
(1) Battery voltage when cranking. (2) About 1.0 volt, varies with temperature. (3) .6 volt to about 4.8 volts at Wide Open Throttle (WOT). (4) .26 to .46 volts. (5) Varies from .1 volt to .9 volt. (6) Less than .5 volt.
(1)Battery voltage when cranking.
(2)About 1.0 volt, varies with temperature.
(3).6 volt to about 4.8 volts at Wide Open Throttle (WOT).
(4).26 to .46 volts.
(5)Varies from .1 volt to .9 volt.
(6)Less than .5 volt.

4.3L, 5.0L & 5.7L "C" & "K" SERIES VAN W/O 4L80-E A/T (32-PIN C-D CONNECTOR)

5.7L & 7.4L "R" & "V" SERIES W/O 4L80-E A/T

Note. Terminals not listed are not used or information is not available.

5.7L & 7.4L "R" & "V" SERIES W/O 4L80-E A/T (24-PIN A-B CONNECTOR)

Pin (Wire Color)Ckt. No.CircuitVolts: Key OnVolts: Engine Running
A1 (Dk Grn/Wht)465Fuel Pump Relay Drive(1)14
A4 (Gray)435EGR Control1214
A5 (Brn/Wht)419"SES" Light Control014
A6 (Pnk/Blk)439IGN-ECM Fuse1214
A7 (Tan/Blk)422TCC Control1214
A8 (Orange)461Serial Data(2)(2)
A9 (Wht/Blk)451Diagnostic Terminal55
A10 (Brown)437Vehicle Speed Sensor(3)(3)
A11 (Black)452TPS/CTS Sensor Ground00
A12 (Blk/Wht)450System Ground00
B1 (Orange)440Battery 12 Volts1214
B2 (Gray)120Fuel Pump Signal(1)14
B3 (Blk/Red)453EST Reference Low00
B5 (Ppl/Wht)430EST Reference High01.6
B7 (Black)485ESC Signal99
B8 (Dk Grn)59A/C Signal(4)(4)
(1) Battery voltage first two seconds. (2) Varies. (3) Varies from 0 to battery voltage depending on position of drive wheels. (4) 0 volts with A/C "OFF", battery voltage with A/C "ON".
(1)Battery voltage first two seconds.
(2)Varies.
(3)Varies from 0 to battery voltage depending on position of drive wheels.
(4)0 volts with A/C "OFF", battery voltage with A/C "ON".

5.7L & 7.4L "R" & "V" SERIES W/O 4L80-E A/T (24-PIN A-B CONNECTOR)

5.7L & 7.4L "R" & "V" SERIES W/O 4L80-E A/T (32-PIN C-D CONNECTOR)

Pin (Wire Color)Ckt. No.CircuitVolts: Key OnVolts: Engine Running
C3 (Lt Grn/Blk)444IAC "B" LowNot UsableNot Usable
C4 (Lt Grn/Wht)443IAC "B" HighNot UsableNot Usable
C5 (Lt Blu/Wht)441IAC "A" HighNot UsableNot Usable
C6 (Lt Blu/Blk)442IAC "A" LowNot UsableNot Usable
C7 (Lt Blue)446Hi Gear Switch Signal1214
C9 (Ppl/Wht)806Crank Signal(1)0
C10 (Yellow)410CTS Signal(2)(2)
C11 (Lt Grn)432MAP Signal4.81.0
C13 (Dk Blue)417TPS Signal(3).6
C14 (Gray)4165 Volt Ref MAP & TPS55
C16 (Orange)440Battery 12 Volts1214
D1 (Tan/Wht)551System Ground00
D2 (Purple)455MAP Ground00
D4 (White)423EST Signal(6)1.0
D5 (Tan/Blk)424EST Bypass(6)4.75
D6 (Tan)413Oxygen Sensor Ground(6)(6)
D7 (Purple)412Oxygen Sensor Signal(4)(5)
D14 (Green)468Injector 2 Driver1214
D16 (Blue)467Injector 1 Driver1214
(1) Battery voltage when cranking. (2) About 1.0 volt, varies with temperature. (3) .6 volt to about 4.8 volts at Wide Open Throttle (WOT). (4) .26 to .46 volts. (5) Varies from .1 volt to .9 volt. (6) Less than .5 volt.
(1)Battery voltage when cranking.
(2)About 1.0 volt, varies with temperature.
(3).6 volt to about 4.8 volts at Wide Open Throttle (WOT).
(4).26 to .46 volts.
(5)Varies from .1 volt to .9 volt.
(6)Less than .5 volt.

5.7L & 7.4L "R" & "V" SERIES W/O 4L80-E A/T (32-PIN C-D CONNECTOR)

4.3L, 5.7L & 7.4L "C", "K", "R" & "V" SERIES W/4L80-E A/T

Note. Terminals not listed are not used or information is not available.

4.3L, 5.7L & 7.4L "C", "K", "R" & "V" SERIES W/4L80-E A/T (24-PIN A-B CONNECTOR)

Pin (Wire Color)Ckt. No.CircuitVolts: Key OnVolts: Engine Running
A1 (Dk Grn/Wht)465Fuel Pump Relay Drive(1)14
A2 (Yel/Blk)1223Shift Solenoid "B"1214
A3 (Lt Grn)1222Shift Solenoid "A"(4)(4)
A4 (Tan/Blk)422TCC Solenoid Control1214
A6 (Brown)436EAC Control (5)1214
A7 (Brn/Wht)419"SES" Lamp Control014
A11 (Gray)435EVRV (EGR) Control1112
A12 (Purple)420Brake Signal(2)(2)
B2 (Red)1226Range "C" Signal1214
B3 (Dk Blue)1225Range "B" Signal0(4)
B4 (Pink)1224Range "A" Signal1214
B5 (Lt Blue)1232Transmission Output Speed Signal (4WD)55
B6 (Dk Grn/Yel)1233Transmission Output Speed Sensor Ground00
B7 (Lt Blu/Wht)1229Force Motor Low0.85
B8 (Red/Blk)1228Force Motor High04.50
B9 (Gry/Red)1230Transmission Input Speed Signal0(4)
B10 (Dk Blu/Wht)1231Transmission Input00
Speed Sensor GroundB11 (Brown)437VSS & Transmission Output Speed Signal (2WD)0
0B12 (Dk Grn)59A/C Signal(3)
(1) Battery voltage first 20 seconds. (2) Battery voltage brakes "OFF", o volts brakes "ON". (3) 0 volts with A/C "OFF", battery voltage with A/C "ON". (4) Less than .50 volt. (5) 7.4L under 8500 GVW.
(1)Battery voltage first 20 seconds.
(2)Battery voltage brakes "OFF", o volts brakes "ON".
(3)0 volts with A/C "OFF", battery voltage with A/C "ON".
(4)Less than .50 volt.
(5)7.4L under 8500 GVW.

4.3L, 5.7L & 7.4L "C", "K", "R" & "V" SERIES W/4L80-E A/T (24-PIN A-B CONNECTOR)

4.3L 5.7L & 7.4L "C", "K", "R" & "V" SERIES W/4L80-E A/T (32-PIN C-D CONNECTOR)

Pin (Wire Color)Ckt. No.CircuitVolts: Key OnVolts: Engine Running
C1 (Pnk/Blk)439Fused Ignition Feed1214
C2 (Blk/Wht)450System Ground(5)(5)
C3 (Tan/Wht)551System Ground(5)(5)
C4 (Gray)416TPS Reference Voltage55
C5 (Dk Blue)417TPS Signal.60(2)
C6 (Lt Blu/Wht)441IAC Coil "A" HighNot UsableNot Usable
C7 (Lt Blu/Blk)442IAC Coil "A" LowNot UsableNot Usable
C8 (Lt Gry/Blk)444IAC Coil "B" LowNot UsableNot Usable
C9 (Lt Blu/Wht)443IAC Coil "B" HighNot UsableNot Usable
C10 (Lt Grn)432MAP Signal4.771.45
C11 (1)(1)Serial Data(1)(1)
C13 (Tan)413O2 Sensor Ground0(5)
C14 (Purple)412O2 Signal(3)(4)
C15 (Dk Grn)468Injector 2 Control1214
C16 (Dk Blu)467Injector 1 Control1214
D1 (Orange)440Battery Voltage Feed1214
D2 (Purple)455MAP/TTS Sensor Ground00
D3 (Black)452TPS/CTS Sensor Ground00
D4 (Gray)474MAP Reference Voltage5.05.0
D5 (Dk Blue)496ECS (Knock) Signal4.74.7
D6 (Wht/Blk)451Diagnostic Terminal55
D7 (Gray)120Fuel Pump SignalN/AN/A
D11 (White)423EST Control01.0
D12 (Tan/Blk)424EST Bypass04.64
D13 (Blk/Red)453EST Reference Low00
D14 (Ppl/Wht)468EST Reference High01.5
D15 (Blk/Yel)1227Trans Temp Signal2.242.0
D16 (Yellow)410CTS Signal1.51.69
(1) 1061 (Orn/Blk) or 461 (Orange) or 488 from 2 volts to 5 volts. (2) .70 volts measured between terminals C5 and D2 4.26 volts at Wide Open Throttle (WOT). (3) .26 to .46 volts. (4) Varies from .1 volt to .9 volt. (5) Less than .50 volts.
(1)1061 (Orn/Blk) or 461 (Orange) or 488 from 2 volts to 5 volts.
(2).70 volts measured between terminals C5 and D2 4.26 volts at Wide Open Throttle (WOT).
(3).26 to .46 volts.
(4)Varies from .1 volt to .9 volt.
(5)Less than .50 volts.

4.3L 5.7L & 7.4L "C", "K", "R" & "V" SERIES W/4L80-E A/T (32-PIN C-D CONNECTOR)

6.2L DIESEL "R" & "V" SERIES W/4L80-E A/T

Note. Terminals not listed are not used or information is not available.

6.2L DIESEL "R" & "V" SERIES W/4L80-E A/T (24-PIN A-B CONNECTOR)

Pin (Wire Color)Ckt. No.CircuitVolts: Key OnVolts: Engine Running
A3 (Pink)1224Range "A" Signal1214
A4 (Dk Blue)1225Range "B" Signal(6)(6)
A5 (Red)1226Range "C" Signal1214
A6 (Yel/Blk)1223Shift Solenoid "B"1214
A7 (Lt Brown)1222Shift Solenoid "A"12(6)
A8 (Wht/Blk)451Diagnostic Terminal B55
A12 (Orange)440Battery Voltage Feed(2)(2)
B3 (Dk Grn)59A/C Signal(1)(1)
B4 (Purple)420Brake Signal(2)(2)
B5 (Tan/Blk)422TCC Control1214
B9 (3)(3)"TRANS" Lamp Control014
B10 (4)(4)Serial Data(5)(5)
(1) 0 volts with A/C "OFF", battery voltage with A/C "ON". (2) Battery voltage brakes "OFF", 0 volts brakes "ON". (3) 419 (Brn/Wht) or 1234 (Gry/Red). (4) 1061 (Orn/Blk) or 461 (Orange) or 488 (Lt Grn). (5) Varies 2 to 5 volts. (6) Less than .50 volt.
(1)0 volts with A/C "OFF", battery voltage with A/C "ON".
(2)Battery voltage brakes "OFF", 0 volts brakes "ON".
(3)419 (Brn/Wht) or 1234 (Gry/Red).
(4)1061 (Orn/Blk) or 461 (Orange) or 488 (Lt Grn).
(5)Varies 2 to 5 volts.
(6)Less than .50 volt.

6.2L DIESEL "R" & "V" SERIES W/4L80-E A/T (24-PIN A-B CONNECTOR)

6.2L DIESEL "R" & "V" SERIES W/4L80-E A/T (32-PIN C-D CONNECTOR)

Pin (Wire Color)Ckt. No.CircuitVolts: Key OnVolts: Engine Running
C1 (Blk/Wht)450System Ground00
C2 (Tan/Wht)551System Ground00
C3 (Black)452Sensor Ground00
C4 (Gray)416TPS Reference Voltage55
C15 (Blu/Wht)1229Force Motor Low0.85
C16 (Pnk/Blk)439Ignition Feed1214
D2 (Brown)437Transmission Output Speed Signal (2WD)(1)(1)
D3 (Gry/Red)1230Transmission Input Speed Sensor Ground00
D4 (Gry/Red)1230Transmission Input Speed Signal0(2)
D6 (3)(3)Engine Speed Signal0(4)
D7 (Black)452Sensor Ground00
D8 (Dk Blue)417TPS Signal.67(5)
D13 (Blk/Yel)1227Trans Temp Signal(6)(6)
D16 (Red/Blk)1228Force Motor High.114.43
(1) Varies from .06 to battery voltage depending on position of drive wheels. (2) 10.5 volts AC, varies with RPM. (3) 643 (Dk Blu/Wht) CK, 121 (White) R/V, P, G. (4) .40 volt AC, varies with RPM. (5) .67 volt to 4.8 volt WOT. (6) About 2 volts varies with temperature.
(1)Varies from .06 to battery voltage depending on position of drive wheels.
(2)10.5 volts AC, varies with RPM.
(3)643 (Dk Blu/Wht) CK, 121 (White) R/V, P, G.
(4).40 volt AC, varies with RPM.
(5).67 volt to 4.8 volt WOT.
(6)About 2 volts varies with temperature.

6.2L DIESEL "R" & "V" SERIES W/4L80-E A/T (32-PIN C-D CONNECTOR)