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Chevy Malibu ECU pin out?
I'm looking for a pin out for the ECU of a 1999 Malibu 4 cylinder. If you happen to have one and can pass it along that would be most excellent. Thanks.
Joanne: Engine Control Unit
Don r: I would love to but unfortunately the library is only open while I'm at work which is why I asked.
ZEDMILLY: I think I have a man-crush on you.
Pin
Wire Color
Circuit No.
Function
C1-01-C1-05
--
--
Not Used
C1-06
BLK
2759
Fuel Tank Pressure Sensor Ground
C1-07
BRN/WHT
633
CMP Sensor Signal
C1-08
PPL/WHT
430
CKP 7x Reference Signal
C1-09
--
--
Not Used
C1-10
GRY
2709
Fuel Tank Pressure Sensor 5 Volt Reference
C1-11-C1-17
--
--
Not Used
C1-18
BLK/WHT
451
PCM Ground
C1-19
PNK
639
Ignition Positive Voltage (2)
C1-20
ORN
480
Battery Positive Voltage (B+)
C1-21
DK BLU
417
TP Sensor Signal
C1-22-C1-24
--
--
Not Used
C1-25
ORN
406
Ignition Control Output 2-3
C1-26
WHT
423
Ignition Control Output 1-4
C1-27
TAN/BLK
231
Engine Oil Pressure Sensor Signal
C1-28
RED
1226
Transaxle Range C Input
C1-29
BLK/WHT
771
TR Switch Input A
C1-30-C1-31
--
--
Not Used
C1-32
GRY
1716
Knock Sensor (KS) Reference Low
C1-33
--
--
Not Used
C1-34
DK BLU
496
Knock Sensor (KS) Signal
C1-35
PPL
420
TCC Brake Switch Input
C1-36-C1-44
--
--
Not Used
C1-45
DK GRN
890
Fuel Tank Pressure Sensor Signal
C1-46
YEL/BLK
1227
TFT Sensor Signal
C1-47-C1-48
--
--
Not Used
C1-49
RED/BLK
380
A/C Refrigerant Pressure Sensor Signal
C1-50-C1-51
--
--
Not Used
C1-52
BLK
2751
A/C Refrigerant Pressure Sensor Ground
C1-53
GRY
23
Generator Terminal F Input
C1-54
YEL
410
ECT Sensor Signal
C1-55-C1-56
--
--
Not Used
C1-57
BLK
2752
TP Sensor Ground
C1-58
--
--
Not Used
C1-59
PPL
1807
Serial Data (Class II)
C1-60
BLK/WHT
451
PCM Ground
C1-61
PPL
1500
Ignition Positive Voltage (1)
C1-62
LT GRN
432
MAP Sensor Signal
C1-63
RED/BLK
1230
A/T ISS Sensor High
C1-64
YEL
400
VSS High
C1-65-C1-66
--
--
Not Used
C1-67
DK BLU
1225
Transaxle Range B Input
C1-68
PNK
1224
Transaxle Range A Input
C1-69
YEL
772
TR Switch Input B
C1-70-C1-71
--
--
Not Used
C1-72
GRY
773
TR Switch Input C
C1-73
WHT
776
TR Switch Input P
C1-74
RED
225
Generator Terminal L Output
C1-75
BLK
1744
Fuel Injector #1 Driver
C1-76
LT GRN/BLK
1745
Fuel Injector #2 Driver
C1-77-C1-80
--
--
Not Used
C2-01-C2-05
--
--
Not Used
C2-06
RED/BLK
1228
PC Solenoid High Control
C2-07
--
--
Not Used
C2-08
DK GRN/WHT
465
Fuel Pump Relay Control
C2-09
LT BLU/WHT
1229
PC Solenoid Low Control
C2-10
WHT
121
Tachometer Output
C2-11-C2-13
--
--
Not Used
C2-14
ORN/BLK
469
MAP Sensor Ground
C2-15
--
--
Not Used
C2-16
DK GRN/WHT
817
VSS Output
C2-17-C2-19
--
--
Not Used
C2-20
TAN
472
IAT Sensor Signal
C2-21
BLK/WHT
451
O2S 1 Low
C2-22
PPL
412
O2S 1 Signal
C2-23
TAN/WHT
1669
HO2S 2 Low
C2-24
PPL/WHT
1668
HO2S 2 Signal
C2-25-C2-26
--
--
Not Used
C2-27
BLK/WHT
2761
ECT Sensor Ground
C2-28
BLK
2760
IAT Sensor Ground
C2-29
WHT/BLK
2762
TFT Sensor Ground
C2-30
--
--
Not Used
C2-31
RED/BLK
453
ICM Reference Low
C2-32
--
--
Not Used
C2-33
GRY/BLK
2701
TP Sensor 5 Volt Reference
C2-34
GRY
2700
A/C Refrigerant Pressure Sensor 5 Volt Reference
C2-35
BRN
2704
MAP Sensor 5 Volt Reference
C2-36
RED
631
CMP Sensor Ignition Positive Voltage
C2-37-C2-44
--
--
Not Used
C2-45
DK GRN
83
Cruise Disable Output
C2-46
BRN/WHT
419
MIL Control
C2-47
--
--
Not Used
C2-48
LT BLU/BLK
396
Cruise Engaged Input
C2-49
YEL
657
TCC Release Switch Input
C2-50
--
--
Not Used
C2-51
YEL/BLK
1223
2-3 SS Valve Control
C2-52
--
--
Not Used
C2-53
LT GRN
1222
1-2 SS Valve Control
C2-54
DK GRN
335
LH Fan Control
C2-55
DK GRN/WHT
459
A/C Compressor Clutch Relay Control
C2-56
DK GRN/WHT
428
EVAP Canister Purge Valve Driver
C2-57
BRN
418
TCC PWM Solenoid Valve Control
C2-58
WHT
1310
EVAP Canister Vent Solenoid Driver
C2-59
DK BLU
473
RH Fan Control
C2-60
--
--
Not Used
C2-61
PPL
401
VSS Low
C2-62
DK BLU/WHT
1231
A/T ISS Sensor Low
C2-63
PNK/BLK
632
CMP Sensor Ground
C2-64
BLK/WHT
451
PCM Ground
C2-65-C2-70
--
--
Not Used
C2-71
LT BLU/WHT
1747
IAC Coil A High
C2-72
LT GRN/WHT
1749
IAC Coil B High
C2-73
LT GRN/BLK
444
IAC Coil B Low
C2-74
LT BLU/BLK
1748
IAC Coil A Low
C2-75
LT BLU/BLK
844
Fuel Injector #4 Driver
C2-76
PNK/BLK
1746
Fuel Injector #3 Driver
C2-77-C2-80
--
--
Not Used
Go to the library and look in Chiltons Auto Repair manual.
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