These are the RED & BLUE PCM connector pinouts that will cover 1997-98
Corvette, and 1998 F-Body ONLY . Your harness MAY NOT have a pin in a location I have listed
having a wire. I have tried to list all possible wires that will show up
97-98. If I show a wire, and your harness does not have it, you probably
don't need it anyway. This INFO is 1998 F-Bdoy SPECIFIC, 97,98 Corvette should
be very close, pay attention to location of 5v references and ground references.
BLOCKS
HIGHLIGHTED LIKE THIS, ARE WIRES THAT ARE NEEDED, AND GO TO EXTERNAL CONNECTION
FOR STAND ALONE
BLOCKS
HIGHLIGHTED LIKE THIS, ARE WIRES THAT CAN BE REMOVED FROM PCM CONNECTORS, NOT
NEEDED.
Note: Removing all of
these will
result in a non-emissions friendly harness. If requirements are for 4
oxygen sensors, EVAP system, and EGR, then you will not want to remove those components.
Any wire NOT highlighted does not get touched, its required for proper
engine/transmission control.
Download these in printable PDF format
1997-98 Y,F-Body LS1 PCM Connector C1 - RED
|
Pin |
Wire Color |
Circuit No. |
Function |
|
1 |
-- |
-- |
Not Used |
|
2 |
-- |
-- |
Not Used |
|
3 |
WHT |
1310 |
EVAP Canister Vent Sol Valve |
|
4 |
BRN/WHT |
633 |
Camshaft Position Sensor Signal |
|
5 |
-- |
-- |
Not Used |
|
6 |
-- |
-- |
Not Used |
|
7 |
YEL |
400 |
VSS High Signal |
|
8 |
-- |
-- |
Not Used |
|
9 |
PNK/BLK |
1746 |
Inj #3 Control |
|
10 |
-- |
-- |
Not Used |
|
11 |
DK BLU |
229 |
VTD Fuel Enable |
|
12 |
LT BLU/BLK |
844 |
Inj #4 Control |
|
13 |
RED/WHT |
2122 |
Coil #2 Control |
|
14 |
DK GRN |
59 |
A/C Status |
|
15 |
BLK/WHT |
845 |
Inj #5 Control |
|
16 |
-- |
|
|
|
17 |
-- |
|
|
|
18 |
YEL/BLK |
846 |
Inj #6 Control |
|
19 |
-- |
|
|
|
20 |
-- |
|
|
|
21 |
PPL |
719 |
IAT Sensor Ground |
|
22 |
DK BLU |
1225 |
Trans Range Signal B |
|
23 |
LT GRN/BLK |
1745 |
Inj #2 Control |
|
24 |
BLK/WHT |
1704 |
Sensor Ground Jumper |
|
25 |
PNK |
1224 |
Trans Range Signal A |
|
26 |
-- |
|
|
|
27 |
RED/BLK |
877 |
Inj #7 Control |
|
28 |
-- |
|
|
|
29 |
-- |
|
|
|
30 |
GRY/BLK |
1687 |
Spark Retard Signal |
|
31 |
DK BLU/WHT |
878 |
Inj #8 Control |
|
32 |
ORN/BLK |
434 |
PNP Switch Signal |
|
33 |
BLK |
1744 |
Inj #1 Control |
|
34 |
GRY or WHT |
587 or 687 |
Skip Shift Sol (M/T) or 3-2 Shift Sol (AT) |
|
35 |
LT GRN |
1222 |
1-2 Shift Sol |
|
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 Sol |
|
41 |
BRN/WHT |
1173 |
Low Oil Lamp Control |
|
42 |
LT GRN |
1652 |
Reverse Inhibit Sol Control |
|
43 |
DK/GRN |
335 |
Cooling Fan 1 Relay |
|
44 |
YEL |
573 |
Crank Position Sensor Signal |
|
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 |
Coil #1 Control |
|
50 |
-- |
-- |
Not Used |
|
51 |
-- |
-- |
Not Used |
|
52 |
PPL/WHT |
2128 |
Coil #8 Control |
|
53 |
RED |
2127 |
Coil #7 Control |
|
54 |
LT BLU/WHT |
2126 |
Coil #6 Control |
|
55 |
DK GRN/WHT |
817 |
VSS Output Signal |
|
56 |
DK GRN |
2125 |
Coil #5 Control |
|
57 |
DK GRN/WHT |
2124 |
Coil #4 Control |
|
58 |
LT BLU |
2123 |
Coil #3 Control |
|
59 |
BRN/WHT |
2130 |
Coil Control Low Ref Bank 2 |
|
60 |
BRN |
2129 |
Coil Control Low Ref Bank 1 |
|
61 |
RED |
1226 |
Trans Range Signal C |
|
62 |
BLK |
552 |
Ground Ref (EGR Pintle Position) |
|
63 |
BLK |
407 |
Ground
Ref (A/C Refrigerant Pressure Sensor) |
|
64 |
-- |
-- |
Not Used |
|
65 |
-- |
-- |
Not Used |
|
66 |
-- |
-- |
Not Used |
|
67 |
-- |
-- |
Not Used |
|
68 |
-- |
-- |
Not Used |
|
69 |
-- |
-- |
Not Used |
|
70 |
-- |
-- |
Not Used |
|
71 |
PPL |
401 |
VSS Signal Low |
|
72 |
BLK |
451 |
PCM Ground |
|
73 |
-- |
-- |
Not Used |
|
74 |
-- |
-- |
Not Used |
|
75 |
GRY |
720 |
Left & Right Fuel Level Sensor Ground |
|
76 |
BLK |
451 |
PCM Ground |
|
77 |
PPL |
420 |
TCC/Brake Switch Signal |
|
78 |
-- |
-- |
Not Used |
|
79 |
-- |
-- |
Not Used |
|
80 |
-- |
-- |
Not Used |
| Pin |
Wire Color |
Circuit No. |
Function |
| 1 |
TAN |
1671 |
HO2S Signal Low B2S2 |
| 2 |
TAN/WHT |
1669 |
HO2S Signal Low B1S2 |
| 3 |
TAN |
800 |
Serial Data (Uart) (not f-body???) |
| 4 |
RED |
631 |
Camshaft Position Sensor B+ Supply |
| 5 |
TAN |
1667 |
HO2S Signal Low B2S1 |
| 6 |
TAN/WHT |
1653 |
HO2S Signal Low B1S1 |
| 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 |
Trans Fluid Temp Sensor Signal |
| 14 |
ORN/BLK |
1057 |
Trans Fluid Temp Sensor Ground |
| 15 |
-- |
-- |
Not Used |
| 16 |
-- |
-- |
Not Used |
| 17 |
-- |
-- |
Not Used |
| 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 |
Crank 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 |
Cooling Fan 2 Relay 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 |
| 34 |
GRY |
435 |
EGR Valve Ground |
| 35 |
WHT |
121 |
Engine Speed Signal (TACH) |
| 36 |
LT BLU/WHT |
1229 |
Trans Fluid Pressure Control Sol Low |
| 37 |
DK GRN/WHT |
465 |
Fuel Pump Relay Control |
| 38 |
LT BLU |
697 |
EGR Valve Control Circuit |
| 39 |
RED/BLK |
1228 |
Trans Fluid Pressure Control Sol High |
| 40 |
-- |
-- |
Not Used |
| 41 |
PPL |
1670 |
HO2S Signal High B2S2 |
| 42 |
PPL/WHT |
1668 |
HO2S Signal High B1S2 |
| 43 |
GRY |
596 |
TP Sensor 5V Reference |
| 44 |
-- |
-- |
Not Used |
| 45 |
-- |
-- |
Not Used |
| 46 |
PPL |
1666 |
HO2S Signal High B2S1 |
| 47 |
PPL/WHT |
1665 |
HO2S Signal High B1S1 |
| 48 |
LT GRN |
432 |
MAP Sensor Signal |
| 49 |
YEL |
410 |
ECT Sensor Signal |
| 50 |
-- |
-- |
Not Used |
| 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 |
Crank Position Sensor B+ Supply |
| 63 |
-- |
-- |
Not Used |
| 64 |
GRY |
416 |
MAP Sensor 5V Reference |
| 65 |
GRY |
705 |
5V Reference
(EGR Valve) |
| 66 |
GRY |
474 |
5V Reference
(A/C Refrigerant Pressure Sensor ) |
| 67 |
GRY |
598 |
5V Reference
(Fuel Tank Pressure) |
| 68 |
LT BLU |
1876 |
Knock Sensor Rear |
| 69 |
DK BLU |
496 |
Knock Sensor Front |
| 70 |
PNK/BLK |
632 |
Camshaft Position Sensor Ground |
| 71 |
-- |
-- |
Not Used |
| 72 |
-- |
-- |
Not Used |
| 73 |
-- |
-- |
Not Used |
| 74 |
-- |
-- |
Not Used |
| 75 |
-- |
-- |
Not Used |
| 76 |
BRN |
1174 |
Oil Level Sensor Signal |
| 77 |
-- |
-- |
Not Used |
| 78 |
-- |
-- |
Not Used |
| 79 |
-- |
-- |
Not Used |
| 80 |
-- |
-- |
Not Used |