boostedtransam

iTrader: (4)

Can someone post up a Diagram or step by step directions on how to repin a 98 pcm to a 99-02 pcm? I have a 01 pcm and a 01 guage cluster already...

RedBaron

iTrader: (2)

To The Top

Dave F

98' Trans Am PCM

REd connector
Pin
Wire Color
Circuit No.
Function

1-2
--
--
Not Used

3
WHT
1310
EVAP Canister Vent Solenoid Valve Control

4
BRN/WHT
633
Camshaft Position Sensor Signal

5-6
--
--
Not Used

7
YEL
400
VSS Signal High

8
--
--
Not Used

9
PNK/BLK
1746
Injector #3 Control

10
--
--
Not Used

11
DK BLU
229
VTD Fuel Enable

12
LT BLU/BLK
844
Injector #4 Control

13
RED/WHT
2122
Injector #2 Control

14
DK GRN
59
A/C Status

15
BLK/WHT
845
Injector #5 Control

16-17
--
--
Not Used

18
YEL/BLK
846
Injector #6 Control

19-20
--
--
Not Used

21
PPL
719
IAT Sensor Ground

22
DK BLU
1225
Transmission Range Signal B

23
LT GRN/BLK
1745
Injector #2 Control

24
BLK/WHT
1704
Sensor Ground Jumper

25
PNK
1224
Transmission Range Signal A

26
--
--
Not Used

27
RED/BLK
877
Injector #7 Control

28-29
--
--
Not Used

30
GRY/BLK
1687
Spark Retard Signal

31
DK BLU/WHT
878
Injector #8 Control

32
ORN/BLK
434
PNP Switch Signal

33
BLK
1744
Injector #1 Control

34
GRY or WHT
587 or 687
Skip Shift Solenoid (M/T) or 3-2 Shift Solenoid (A/T)

35
LT GRN
1222
1-2 Shift Solenoid

36
DK/BLU
1936
Fuel Gauge Output Control

37
BRN/WHT
419
MIL Control

38
--
--
Not Used

39
DK GRN/WHT
459
A/C Clutch Relay Control

40
WHT or YEL/BLK
375 or 1223
Skip Shift Lamp Control (M/T) or 2-3 Shift Solenoid (A/T)

41
BRN/WHT
1173
Low Oil Level Indicator Lamp Control

42
LT GRN
1652
Reverse Inhibit Solenoid Control

43
DK/GRN
335
Cooling Fan Relay #1 Control

44
YEL
573
Crankshaft Position Sensor Signal Input

45
DK GRN/WHT
428
EVAP Canister Purge Valve Control

46
--
--
Not Used

47
DK GRN/WHT
762
A/C Request Signal

48
YEL
492
MAF Signal

49
PPL
2121
Ignition #1 Control

50-51
--
--
Not Used

52
PPL/WHT
2128
Ignition #8 Control

53
RED
2127
Ignition #7 Control

54
LT BLU/WHT
2126
Ignition #6 Control

55
DK GRN/WHT
817
VSS Output Signal

56
DK GRN
2125
Ignition #5 Control

57
DK GRN/WHT
2124
Ignition #4 Control

58
LT BLU
2123
Ignition #3 Control

59
BRN/WHT
2130
Ignition Control Reference Low Bank 2

60
BRN
2129
Ignition Control Reference Low Bank 1

61
RED
1226
Transmission Range Signal C

62
BLK
552
EGR Pintle Position Ground

63
BLK
407
A/C Refrigerant Pressure Sensor Ground

64-70
--
--
Not Used

71
PPL
401
VSS Signal Low

72
BLK
451
PCM Ground

73-74
--
--
Not Used

75
GRY
720
Left and Right Fuel Tank Level Sensor Ground

76
BLK
451
PCM Ground

77
PPL
420
TCC/Brake Switch Signal

78-80
--
--
Not Used

blue Connector
Pin
Wire Color
Circuit No.
Function

1
TAN
1671
HO2S Signal Low Bank 2 Sensor 2

2
TAN/WHT
1669
HO2S Signal Low Bank 1 Sensor 2

3
TAN
800
Serial Data (UART)

4
RED
631
Camshaft Position Sensor B+ Supply

5
TAN
1667
HO2S Signal Low Bank 2 Sensor 1

6
TAN/WHT
1653
HO2S Signal Low Bank 1 Sensor 1

7
RED/BLK
380
A/C Refrigerant Pressure Sensor Signal

8
TAN
472
IAT Sensor Signal

9
BRN
1456
EGR Pintle Position Sensor Signal

10
PPL
30
Fuel Level Sensor Signal

11
--
--
Not Used

12
DK BLU
417
TP Sensor Signal

13
YEL/BLK
1227
Transmission Fluid Temperature Sensor Signal

14
ORN/BLK
1057
Transmission Fluid Temperature Sensor Ground

15-18
--
--
Not Used

19
PNK
439
PCM Ignition 1 Feed

20
ORN
340
PCM Battery Feed

21
BLK
451
PCM Ground

22
YEL/BLK
1868
Crankshaft Position Sensor Ground

23
BLK
452
TP Sensor Ground

24
BLK/WHT
1704
Sensor Ground Jumper

25
BRN
718
ECT Sensor Ground

26
ORN/BLK
469
MAP Sensor Ground

27
--
--
Not Used

28
DK BLU
473
Engine Cooling Fan Relay #2 and #3 Control

29
--
--
Not Used

30
BRN
436
AIR Pump Relay Control

31
PPL
421
AIR Solenoid Relay Control

32
TAN/BLK
422
TCC Enable Solenoid

33
BRN
418
TCC (PWM) Solenoid Valve Control

34
GRY
435
EGR Valve Ground

35
WHT
121
Engine Speed (Tach) Output Signal

36
LT BLU/WHT
1229
Transmission Fluid Pressure Control Solenoid Control Low

37
DK GRN/WHT
465
Fuel Pump Relay Control

38
LT BLU
697
EGR Valve Control Circuit

39
RED/BLK
1228
Transmission Fluid Pressure Control Solenoid Control High

40
--
--
Not Used

41
PPL
1670
HO2S Signal High Bank 2 Sensor 2

42
PPL/WHT
1668
HO2S Signal High Bank 1 Sensor 2

43
GRY
596
TP Sensor 5V Reference

44-45
--
--
Not Used

46
PPL
1666
HO2S Signal High Bank 2 Sensor 1

47
PPL/WHT
1665
HO2S Signal High Bank 1 Sensor 1

48
LT GRN
432
MAP Sensor Signal

49
YEL
410
ECT Sensor Signal

50-51
--
--
Not Used

52
DK GRN
890
Fuel Tank Pressure Sensor Signal

53
--
--
Not Used

54
LT GRN/BLK
444
IAC Coil B Low

55
LT BLU/BLK
1748
IAC Coil A Low

56
LT BLU/WHT
1747
IAC Coil A High

57
LT GRN/WHT
1749
IAC Coil B High

58
PPL
1807
Serial Data (Class 2)

59
--
--
Not Used

60
BLK
451
PCM Ground

61
ORN
340
PCM Battery Feed

62
LT GRN
1867
Crankshaft Position Sensor B+ Supply

63
--
--
Not Used

64
GRY
416
MAP Sensor 5.0 Volt Reference

65
GRY
705
5V Reference

66
GRY
474
A/C Refrigerant Pressure Sensor 5.0 Volt Reference

67
GRY
598
5V Reference

68
LT BLU
1876
Knock Sensor (KS) Rear

69
DK BLU
496
Knock Sensor (KS) Front

70
PNK/BLK
632
Camshaft Position Sensor Ground

71-75
--
--
Not Used

76
BRN
1174
Oil Level Sensor Signal

77-80
--
--
Not Used

Dave F

2001 PCM

Red
Pin
Wire Color
Circuit No.
Function

1
BLK
451
Ground

2
BRN
418
TCC Solenoid - Output - PWM

3
--
--
Not Used

4
PNK/BLK
429
Air Injection Reaction Solenoid Relay - Coil - Control

5
--
--
Not Used

6
RED/BLK
1228
PC Solenoid Valve High Control (Sol.A)

7
--
--
Not Used

8
LT BLU/WHT
1229
PC Solenoid Valve Low Control (Sol.A)

9
DK GRN/WHT
465
Fuel Pump Relay Control [Primary]

10
WHT
121
Engine Speed Signal

11-12
--
--
Not Used

13
WHT
85
Cruise Control Engage Signal

14
RED/BLK
380
A/C Refrigerant Pressure Sensor Signal

15
RED
225
Generator Turn ON Signal

16
--
--
Not Used

17
DK GRN/WHT
762
A/C Request Signal

18
DK GRN
59
A/C Compressor Clutch Supply Voltage

19
--
--
Not Used

20
LT GRN/BLK
822
VSS Low Signal

21
PPL/WHT
821
VSS High Signal

22-23
--
--
Not Used

24
DK BLU
417
TP Sensor Signal

25
TAN
472
IAT Sensor Signal

26
PPL
2121
IC 1 Control

27
RED
2127
IC 7 Control

28
LT BLU/WHT
2126
IC 6 Control

29
DK GRN/WHT
2124
IC 4 Control

30
DK BLU
229
Fuel Enable Control

31
YEL
492
MAF Sensor Signal

32
LT GRN
432
MAP Sensor Signal

33
DK BLU
473
High Speed Cooling Fan Relay Control

34
DK GRN/WHT
428
EVAP Canister Purge Solenoid Control

35
--
--
Not Used

36
BRN
436
AIR Pump Relay Control

37
DK GRN
83
Cruise Control Inhibit Signal

38
--
--
Not Used

39
RED
631
12 Volt Reference

40
BLK
451
Ground

41
--
--
Not Used

42
TAN/BLK
422
TCC Solenoid Valve Control

43
DK GRN/WHT
459
A/C Clutch Relay Control

44
LT GRN
1652
Reverse Lock Out Solenoid Control

45
WHT
1310
EVAP Canister Vent Solenoid Control

46
BRN/WHT
419
MIL Control

47
YEL/BLK
1223
2 - 3 Shift Solenoid Valve Control

48
LT GRN
1222
1 - 2 Shift Solenoid Valve Control

49
--
--
Not Used

50
DK GRN/WHT
817
VSS Signal

51
YEL/BLK
1227
TFT Sensor Signal

52
--
--
Not Used

53
GRA/BLK
1687
Ignition Retard Signal

54
PPL
1589
Fuel Level Sensor Signal

55-56
--
--
Not Used

57
PPL
719
Low Reference

58-59
--
--
Not Used

60
BRN
2129
Low Reference

61
BRN/WHT
2130
Low Reference

62
--
--
Not Used

63
PNK
1224
Transmission Fluid Pressure Switch Signal A

64
DK GRN
890
Fuel Tank Pressure Sensor Signal

65
--
--
Not Used

66
PPL/WHT
2128
IC 8 Control

67
RED/WHT
2122
IC 2 Control

68
DK GRN
2125
IC 5 Control

69
LT BLU
2123
IC 3 Control

70-75
--
--
Not Used

76
LT GRN/WHT
1749
IAC Coil B High Control

77
LT GRN/BLK
444
IAC Coil B Low Control

78
LT BLU/BLK
1748
IAC Coil A Low Control

79
LT BLU/WHT
1747
IAC Coil A High Control

80
--
--
Not Used

Blue
Pin
Wire Color
Circuit No.
Function

1
BLK
451
PCM Ground

2
LT GRN
1867
12 Volt Reference

3
PNK/BLK
1746
Fuel Injector 3 Control

4
LT GRN/BLK
1745
Fuel Injector 2 Control

5-7
--
--
Not Used

8
GRA
596
5 Volt Reference

9-10
--
--
Not Used

11
LT BLU
1876
KS [2] Signal

12
DK BLU/WHT
1869
CKP Sensor Signal

13-16
--
--
Not Used

17
DK BLU
1225
Transmission Fluid Pressure Switch Signal B

18
RED
1226
Transmission Fluid Pressure Switch Signal C

19
PNK
439
Ignition 1 Voltage

20
ORN
340
Battery Positive Voltage

21
YEL/BLK
1868
Low Reference

22
--
--
Not Used

23
GRA
720
Low Reference

24
--
--
Not Used

25
TAN
1671
HO2S Low Signal [Bank 2 Sensor 2]

26
TAN
1667
HO2S Low Signal [Bank 2 Sensor 1]

27
--
--
Not Used

28
TAN/WHT
1669
HO2S Low Signal [Bank 1 Sensor X]

29
TAN/WHT
1653
HO2S Low Signal [Bank 1 Sensor 1]

30-31
--
--
Not Used

32
GRY
48
CPP Switch Signal

33
PPL
420
TCC Brake Switch Signal

34
ORN/BLK
434
Neutral Safety Switch Signal

35
--
--
Not Used

36
BLK
1744
Fuel Injector 1 Control

37
YEL/BLK
846
Fuel Injector 6 Control

38-39
--
--
Not Used

40
BLK
451
Ground

41
--
--
Not Used

42
DK GRN
335
Low Speed Cooling Fan Relay Control

43
RED/BLK
877
Fuel Injector 7 Control

44
LT BLU/BLK
844
Fuel Injector 4 Control

45
GRA
474
5 Volt Reference (A/C Refrigerant Pressure Sensor)

46
GRA
474
5 Volt Reference (Fuel Tank Pressure Sensor)

47
--
--
Not Used

48
GRA
416
5 Volt Reference (MAP Sensor)

49-50
--
--
Not Used

51
DK BLU
496
KS [1] Signal

52
--
--
Not Used

53
BLK
407
Low Referecne (Transmission Temperature Sensor)

54
BLK
407
Low Reference (MAP Sensor Ground)

55
--
--
Not Used

56
--
--
Not Used

57
ORN
340
Battery Positive Voltage

58
DK GRN
1049
ECM/PCM/VCM Class 2 Serial Data

59
--
--
Not Used

60
BLK
452
Low Reference

61
PNK/BLK
632
Low Reference (Camshaft Position Sensor)

62-64
--
--
Not Used

65
PPL
1670
HO2S High Signal [Bank 2 Sensor 2]

66
PPL
1666
HO2S High Signal [Bank 2 Sensor 1]

67
--
--
Not Used

68
PPL/WHT
1668
HO2S High Signal [Bank 1 Sensor X]

69
PPL/WHT
1665
HO2S High Signal [Bank 1 Sensor 1]

70
BRN
1174
Oil Level Switch Signal

71-72
--
--
Not Used

73
BRN/WHT
633
CMP Sensor Signal

74
YEL
410
ECT Sensor Signal

75
--
--
Not Used

76
BLK/WHT
845
Fuel Injector 5 Control

77
DK BLU/WHT
878
Fuel Injector 8 Control

78
--
--
Not Used

79
GRA or WHT
587 or 687
Skip Shift Solenoid Control (M/T) or 3-2 Shift Solenoid Control (A/T)

80
BLK
407
Low Reference

Dave F

Good luck, God Speed, May the force be with you. I don't envy your endeavor!

JimMueller

iTrader: (9)

Why does red 13 & red 23 have the same description, yet different circuits in the 1998 list?

Dave F

I just copy/pasted these from the service manuals, I didn't program the cars. Sorry, I've done all I can do.

JimMueller

iTrader: (9)

Yes, I understand you didn't wire the car. I'm only inquiring because the information at this site doesn't match what you posted. I'm not saying the other site is correct, only that the task is already difficult enough when you have the correct information in front of you

Dave F

I'm wondering if 13 should be "ignition 2 control", not injection? The circuit number resembles ignition more than injector??!!

I check the manuals for both Pontiac and Chevrolet, just in case, and they are both listed as I posted, however, I agree it does look incorrect.

Just for a backup, I check the Corvette manual, and it also lists #13 and #23 the same. I think #13 should be ignition.

Dave