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3.8 Wiring Pinouts


PCM Clear Bank (Toward Rear of Car)
PCM Blue Bank (Toward Front of Car)
Electronic Ignition Control Module



PCM Clear Bank (Toward Rear of Car)


1995-1997 1998 1999-2001
Pin Wire Color Circuit Function Wire Color Circuit Function Wire Color Circuit Function
1
2 WHT 1310 EVAP Vent Valve Control WHT 1310 EVAP Vent Valve Control
3 DK GRN/WHT 465 Fuel Pump Relay Control DRK GRN/WHT 465 Fuel Pump Relay Control
4 LT BLU 697 EGR Valve Control LT BLU 697 EGR Valve Control
5 BRN/WHT 419 MIL Lamp Control BRN/WHT 419 MIL Lamp Control
6 BRN/WHT 1173 Low Engine Oil Indicator BRN/WHT 1173 Low Engine Oil Indicator (99 Only)
7 LT BLU/WHT 1747 IAC Valve A High
8 WHT 121 Engine Speed Out
9 TAN/BLK 464 Delivered Torque Out
10 PPL 1666 Bank 2 HO2S 1 Signal PPL 1666 Bank 2 HO2S 1 Signal
11 LT GRN 1222 1-2 Shift Solenoid Control (A4) DK BLU 1980 Bank 1 HO2S 3 Signal DK BLU 1980 Bank 1 HO2S 3 Signal
12 LT GRN 432 MAP Sensor Input PPL/WHT 1665 Bank 1 HO2S 1 Signal PPL/WHT 1665 Bank 1 HO2S 1 Signal
13 DK GRN 83 Cruise Control Inhibit
14
15
16 RED 225 Alternator IND CTRL ORN/BLK 434 Park/Neutral Pos Switch Signal ORG/BLK 434 Park/Neutral Pos Switch Signal
17 YEL/BLK 1223 2-3 Shift Solenoid Control (A4) RED 1226 Trans Range 'C' Input (A4) RED 1226 Trans Range 'C' Input (A4)
18 WHT 687 3-2 Downshift Control Solenoid (A4) GRY 48 Clutch Anticipate/Cruise Release Switch (M5) GRY 48 Clutch Anticipate/Cruise Release Switch (M5)
19
20 LT BLU/WHT 1229 Pressure Control Solenoid Low (A4)
21 BLK/WHT 451 PCM Ground BRN/WHT 1571 2nd Gear Start Signal (A4) BRN/WHT 1571 2nd Gear Start Signal (A4)
22 PNK/BLK 1746 Injector Control Cyl 3 DK GRN/WHT 762 A/C Request DK GRN/WHT 762 A/C Request
23 PPL/WHT 1035 Ignition PPL/WHT 1035 Ignition
24 LT GRN/BLK 1745 Injector Control Cyl 2 BRN 86 Cruise Control Release Signal
25 LT GRN 432 MAP Sensor Input LT GRN 432 MAP Sensor Input
26 BLK 1744 Injector Control Cyl 1 YEL 410 ECT Sensor Input YEL 410 ECT Sensor Input
27 PNK 1224 Trans Range 'A' Input (A4) RED/BLK 380 A/C Refrigerant Pressure Sensor Signal RED/BLK 380 A/C Refrigerant Pressure Sensor Signal
28 YEL/BLK 846 Injector Control Cyl 6 BRN 1456 EGR Pintle Position Signal BRN 1456 EGR Pintel Position Input
29 DK BLU 1225 Trans Range 'B' Input (A4)
30 BLK/WHT 845 Injector Control Cyl 5
31 RED 1226 Trans Range 'C' Input (A4)
32 LT BLU/BLK 844 Injector Control Cyl 4
33 BRN/WHT 1571 2nd Gear Start Signal (A4) GRY 598 5 Volt Reference A GRY 598 5 Volt Referance A
34 LT BLU/BLK 1688 5 Volt Reference B LT BLU/BLK 1668 5 Volt Referance B
35 BRN 25 Generator Control GRY 720 Sensor Ground GRY 720 Sensor Ground
36
37
38
39 DK GRN/WHT 459 A/C Compressor Clutch Relay Control DK GRN/WHT 459 A/C Compressor Clutch Relay Control
40
41
42 PNK/BLK 1746 Injector Control Cyl 3 PNK/BLK 1746 Injector Control Cyl 3
43
44 LT BLU/BLK 1748 IAC Valve A Low
45 PPL 1666 Bank 2 HO2S 1 Signal RED/BLK 1228 Pressure Control Solenoid High (A4) RED/BLK 1228 Pressure Control Solenoid High (A4)
46 TAN 1667 Bank 2 HO2S 1 Low LT BLU/WHT 1229 Pressure Control Solenoid Low (A4) LT BLU/WHT 1229 Pressure Control Solenoid Low (A4)
47 DK BLU 1980 Bank 1 HO2S 3 Signal
48 GRY 1981 Bank 1 HO2S 3 Low WHT 687 3-2 Downshift Control Solenoid (A4) WHT 687 3-2 Downshift Control Solenoid (A4)
49 PPL/WHT 1665 Bank 1 HO2S 1 Signal LT GRN/BLK 444 IAC Valve B Low
50 TAN/WHT 1653 Bank 1 HO2S 1 Low TAN 472 IAT Sensor Input TAN 472 IAT Sensor Input
51 TAN 472 IAT Sensor Input
52 YEL 410 ECT Sensor Input
53 DK BLU 417 Trottle Position Sensor Signal
54 DK BLU 1978 Bank 1 HO2S 2 Signal
55 GRY 1979 Bank 1 HO2S 2 Low DK GRN 890 Fuel Tank Pressure Sensor Signal DK GRN 890 Fuel Tank Pressure Sensor Signal
56
57 DK BLU 1225 Trans Range 'B' Input (A4) DK BLU 1225 Trans Range 'B' Input (A4)
58 BRN 1174 Engine Oil Level Input BRN 1174 Engine Oil Level Input
59 WHT 85 Cruise Engaged Signal
60 BLK/WHT 451 PCM Ground
61 RED/BLK 1228 Pressure Control Solenoid High (A4) BRN 25 Generator Control RED 225 Generator Control
62
63 DK BLU 496 Bank 1 Knock Sensor Signal
64 LT BLU 1876 Bank 2 Knock Sensor Signal
65 BRN 1456 EGR Pintloe Position Signal
66 DK BLU 417 Trottle Position Sensor Signal
67
68 YEL/BLk 1227 A/T Fluid Temp Sensor Input (A4) YEL/BLK 1227 A/T Fluid Temp Sensor Input (A4)
69 PPL 30 Fuel Level Input PPL 1589 Fuel Level Input
70
71 YEL/BLK 1227 A/T Fluid Temp Sensor Input (A4)
72
73 RED/BLK 380 A/C Refrigerant Pressure Sensor Signal
74
75
76
77
78 BRN 418 TCC PWM Solenoid Control (A4) BRN 418 TCC PWM Solenoid Control (A4)
79 TAN/BLK 422 TCC Solenoid Control (A4) TAN/BLK 422 TCC Solenoid Control (A4)
80


PCM Blue Bank (Toward Front of Car)


1995-1997 1998 1999-2001
Pin Wire Color Circuit Function Wire Color Circuit Function Wire Color Circuit Function
1
2 PPL/WHT 1572 2nd Gear Start Indicator (A4) PPL/WHT 1572 2nd Gear Start Indicator (A4)
3
4 LT BLU/BLK 647 18x Reference LT GRN 1222 1-2 Shift Solenoid Control (A4) LT GRN 1222 1-2 Shift Solenoid Control (A4)
5 BLK 630 Camshaft Position Input DK BLU 473 Hi Speed Cool Fan Control DK BLU 473 Hi Speed Cool Fan Control
6 YEL 400 VSS High DK GRN 335 Low Speed Cool Fan Control DK GRN 335 Low Speed Cool Fan Control
7 BLK 630 Camshaft Position Input BLK 630 Camshaft Position Input
8 DK GRN/WHT 465 Fuel Pump Relay Control PPL/WHT 430 3x Reference PPL/WHT 430 3x Reference
9 LT BLU/WHT 1747 IAC Valve A High LT BLU/BLK 647 18x Reference LT BLU/BLK 647 18x Reference
10 LT GRN/BLK 444 IAC Valve B Low
11 LT BLU/BLK 1748 IAC Valve A Low
12 LT GRN/WHT 1749 IAC Valve B High BRN 718 ECT Sensor Ground BRN 718 ECT Sensor Ground
13 DK GRN/WHT 817 VSS Output ORN/BLK 469 MAP Sensor Ground ORG/BLK 469 MAP Sensor Ground
14 ORG/BLK 1061 Tac Serial Data
15 TAN 800 Serial Data (UART) TAN 800 Serial Data (UART) TAN 800 Serial Data (UART)
16 GRY 416 5 Volt Reference A BLK/WHT 51 PCM Ground BLK/WHT 451 PCM Ground
17 GRY 474 5 Volt Reference B PPL 719 IAT Sensor Ground PPL 719 IAT Sensor Ground
18
19 PNK 439 Ignition Feed (Underhood) PNK 439 Ignition Feed (Underhood) PNK 439 Ignition Feed (Underhood)
20 ORG 340 Battery Feed (Underhood) ORN 340 Battery Feed (Underhood) ORG 340 Battery Feed (Underhood)
21 BLK/WHT 451 PCM Ground
22 BRN 418 TCC PWM Solenoid Control (A4) PNK 1224 Trans Range 'A' Input (A4) PNK 1224 Trans Range 'A' Input (A4)
23
24
25 BRN/WHT 419 MIL Lamp Control
26 PPL/WHT 1572 2nd Gear Start Indicator (A4)
27 TAN/WHT 1653 Bank 1 HO2S 1 Low TAN/WHT 1653 Bank 1 HO2S 1 Low
28 TAN/BLK 422 TCC Solenoid Control (A4) GRY 1981 Bank 1 HO2S 3 Low GRY 1981 Bank 1 HO2S 3 Low
29 GRY 435 EGR Valve Control Ground TAN 1667 Bank 2 HO2S 1 Low TAN 1667 Bank 2 HO2S 1 Low
30 DK GRN/WHT 428 EVAP Purge Valve Control PPL 420 TCC Brake Switch PPL 420 TCC Brake Switch
31 DK BLU 473 Hi Speed Cool Fan Control BLK 552 EGR Pos Sensor Ground BLK 552 EGR Pos Sensor Ground
32 DK GRN 335 Low Speed Cool Fan Control GRY 435 EGR Valve Control Ground GRY 435 EGR Valve Control Ground
33 DK BLU 496 Bank 1 Knock Sensor Signal DK BLU 496 Bank 1 Knock Sensor Input
34 LT BLU 1876 Bank 2 Knock Sensor Signal LT BLU 1876 Bank 2 Knock Sensor Input
35 DK GRN/WHT 459 A/C Compressor Clutch Relay Control
36 RED 225 Generator Control
37
38 LT GRN/WHT 1749 IAC Valve B High
39
40
41
42
43 YEL/BLK 846 Injector Control Cyl 6 YEL/BLK 846 Injector Control Cyl 6
44 PPL/WHT 430 3x Reference YEL/BLK 1223 2-3 Shift Solenoid Control (A4) YEL/BLK 1233 2-3 Shift Solenoid Control (A4)
45 RED/BLK 453 Ignition Control Reference Low
46 LT BLU/BLK 844 Injector Control Cyl 4 LT BLU/BLK 844 Injector Control Cyl 4
47 PPL 401 VSS Low BLK/WHT 845 Injector Control Cyl 5 BLK/WHT 845 Injector Control Cyl 5
48 RED/BLK 453 Ignition Control Reference Low RED/BLK 453 Ignition Control Reference Low
49
50
51
52 TAN/BLK 424 ICM Module Bypass
53 WHT 423 Ignition Control TAN/BLK 424 ICM Module Bypass TAN/BLK 424 ICM Module Bypass
54 YEL 492 MAF Sensor Input WHT 423 Ignition Control WHT 423 Ignition Control
55 DK BLU 229 Theft Deterrent Fuel Enable DK GRN/WHT 817 VSS Output DK GRN/WHT 817 VSS Output
56 BLK 452 Sensor Ground BLK/WHT 451 PCM Ground BLK/WHT 451 PCM Ground
57 BLK/WHT 451 PCM Ground BLK/WHT 451 PCM Ground
58
59 PPL 1807 Serial Data (Class 2) PPL 1807 Serial Data (Class 2) DK GRN 1049 Serial Data (Class 2)
60 BLK/WHT 451 PCM Ground BLK/WHT 51 PCM Ground BLK/WHT 451 PCM Ground
61 BLK 452 TP Sensor Ground
62 DK GRN/WHT 762 A/C Request
63
64 YEL 400 VSS High YEL 400 VSS High
65 PPL 401 VSS Low PPL 401 VSS Low
66 PPL 1986 EVAP Purge Diag SW
67 LT BLU/BLK 583 TCC Brake Switch
68 BRN 541 Power (Ignition)
69 GRY 48 Clutch Anticipate/Cruise Release Switch (M5) YEL 492 MAF Sensor Input YEL 492 MAF Sensor Input
70 DK BLU 229 Theft Deterrent Fuel Enable
71 ORG/BLK 463 Requested Torque Input
72 DK GRN 83 Cruise Control Inhibit
73 LT GRN/BLK 1745 Injector Control Cyl 2 LT GRN/BLK 1745 Injector Control Cyl 2
74
75 WHT 85 Cruise Engaged Signal
76 DK GRN/WHT 428 EVAP Purge Valve Control DK GRN/WHT 428 EVAP Purge Valve Control
77
78
79 BLK 1744 Injector Control Cyl 1 BLK 1744 Injector Control Cyl 1
80


Electronic Ignition Control Module


1997-1999
Pin Wire Color Function
A WHT IGN Control
B TAN/BLK Bypass
C LT BLU/BLK 18X Ref
D PPL/WHT 3X Ref
E WHT
F BLK CMP Output
G YEL CKP 18X Sig
H LT BLU/WHT CKP Sync Sig
J BRN/WHT CMP Signal
K BLK Ground
L RED/BLK Ref Low
M RED/BLK Ground
N WHT/BLK IGN Voltage
P PNK Ignition






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