Engine Controls Connector End Views. Cadillac Concours 1997

For 1990-2009 cars

Table 1: | PCM Connector C1
Table 2: | PCM Connector C2

#### PCM Connector C1

Connector C1 (Blue) Part Information

Bolt - 12146916

Bolt Retainer - 12004737

Wire Seal - 12160845

Connector Seal - 12176391

TPA (Blue) - 12191318

Dress Cover (Gray) - 12146921

Strain Relief (Black) - 12160506

Terminal - 12084913

Connector Body - 12176673

Complete Assembly (W/O TPA) - 12160956

Pin | Connector C1 Pin Function | CKT No. | Wire Color | Component Connector Cavity
--- | --- | --- | --- | ---
1 | Not Used | -- | -- | --
2 | Not Used | -- | -- | --
3 | Not Used | -- | -- | --
4 | Not Used | -- | -- | --
5 | Trans Input Speed Sensor Input (Lo) | 1231 | Dk Blu / Wht | B
6 | Trans Input Speed Sensor Input (Hi) | 1230 | Red / Blk | A
7 | EGR Valve Position Sensor Return | 808 | Blk | B
8 | IAC | 444 | Lt Grn / Blk | A
9 | IAC | 1748 | Lt Blu / Blk | C
10 | IAC | 1747 | Lt Blu / Wht | D
11 | IAC | 1749 | Lt Grn / Wht | B
12 | TP Sensor Return | 808 | Blk | B
13 | Trans Temp Sensor Input | 1227 | Yel / Blk | B
14 | Not Used | -- | -- | --
15 | Not Used | -- | -- | --
16 | Fuel Pump Feedback | 120 | Gry | A1
17 | ECT Sensor Return | 808 | Blk | A
18 | PCM Ignition 0 Feed | 147 | Lt Grn | Fuse A1
19 | PCM Ignition 1 Feed | 639 | Pnk | Fuse C7
20 | PCM Battery Feed | 2240 | Orn | Fuse D7
21 | PCM Ground | 451 | Blk / Wht | G102
22 | TCC Solenoid Control | 422 | Tan / Blk | B
23 | Shift A Solenoid Control | 1222 | Lt Grn | B
24 | Lift/Dive Signal Output | 1490 | Ppl | A7
25 | Not Used | -- | -- | --
26 | Cruise Inhibit Output | 83 | Dk Grn | H
27 | A/C Compressor Clutch Relay Control | 459 | Dk Grn / Wht | D1
28 | Shift B Solenoid Control | 1223 | Yel / Blk | B
29 | Trans Pressure Switch C Input | 1226 | Red | D
30 | Trans Pressure Switch B Input | 1225 | Dk Blu | E
31 | Trans Pressure Switch A Input | 1224 | Pnk | C
32 | Trans Range Switch Parity Input | 776 | Wht | A
33 | Trans Range Switch Input C | 773 | Gry | C
34 | Trans Range Switch Input B | 772 | Yel | B
35 | Power Steering Pressure Switch Input | 495 | Orn / Blk | A
36 | TCC Brake Switch Input | 420 | Ppl | B
37 | Trans Pressure Control Solenoid Control | 1228 | Red / Blk | A
38 | Trans Pressure Control Solenoid Enable | 1229 | Lt Blu / Wht | B
39 | Not Used | -- | -- | --
40 | Not Used | -- | -- | --
41 | Not Used | -- | -- | --
42 | Not Used | -- | -- | --
43 | Not Used | -- | -- | --
44 | Not Used | -- | -- | --
45 | Not Used | -- | -- | --
46 | MAP Sensor Return | 469 | Orn / Blk | A
47 | Post-Converter HO2S Input (Hi) | 1668 | Ppl / Wht | B
48 | Post-Converter HO2S Input (Lo) | 1669 | Tan / Wht | A
49 | BBV Sensor Return | 808 | Blk | A
50 | Not Used | -- | -- | --
51 | Not Used | -- | -- | --
52 | Not Used | -- | -- | --
53 | Not Used | -- | -- | --
54 | Generator F Terminal Feedback | 23 | Gry | F
55 | Not Used | -- | -- | --
56 | Not Used | -- | -- | --
57 | Not Used | -- | -- | --
58 | Class 2 Data Line (1997 Only) | 1807 | Ppl | Multiple
59 | Class 2 Data Line | 1807 | Ppl | Multiple
60 | PCM Ground | 451 | Blk / Wht | G102
61 | PCM Battery Feed | 2240 | Orn | Fuse D7
62 | EGR Position Sensor 5 Volt Feed | 605 | Gry | D
63 | TP Sensor 5 Volt Feed | 605 | Gry | A
64 | MAP Sensor 5 Volt Feed | 474 | Gry | C
65 | BBV Sensor 5 Volt Feed | 605 | Gry | C
66 | Not Used | -- | -- | --
67 | Not Used | -- | -- | --
68 | TP Sensor Input | 417 | Dk Blu | C
69 | MAP Sensor Input | 432 | Lt Grn | B
70 | BBV Sensor Input | 1809 | Dk Blu | B
71 | IAT Sensor Return | 452 | Blk | A
72 | Trans Temp Sensor Return | 452 | Blk | A
73 | Not Used | -- | -- | --
74 | Trans Range Switch Input A | 771 | Blk / Wht | D
75 | Not Used | -- | -- | --
76 | Extended Travel Brake Switch | 847 | Gry | D
77 | Cruise Engaged Input | 396 | Lt Blu / Blk | J
78 | Not Used | -- | -- | --
79 | Not Used | -- | -- | --
80 | Not Used | -- | -- | --

#### PCM Connector C2

Connector C2 (Clear) Part Information

Bolt - 12146916

Bolt Retainer - 12004737

Wire Seal - 12146914

Connector Seal - 12176391

TPA (Clear) - 12191319

Dress Cover (Gray) - 12146921

Strain Relief (Black) - 12160506

Terminal - 12084913

Connector Body - 12176673

Complete Assembly (W/O TPA) - 12160548

Pin | Connector C2 Pin Function | CKT No. | Wire Color | Component Connector Cavity
--- | --- | --- | --- | ---
1 | Not Used | -- | -- | --
2 | Not Used | -- | -- | --
3 | Not Used | -- | -- | --
4 | Cam Signal | 630 | Blk | B
5 | 24X Hi Ref Input | 647 | Lt Blu / Blk | A
6 | Not Used | -- | -- | --
7 | VSS Sensor Input Hi | 400 | Yel | A
8 | VSS Sensor Input Lo | 401 | Ppl | B
9 | Fuel Injector 1 Control | 1744 | Blk | B
10 | Fuel Injector 2 Control | 1745 | Lt Grn / Blk | B
11 | Fuel Injector 7 Control | 877 | Red / Blk | B
12 | Fuel Injector 3 Control | 1746 | Pnk / Blk | B
13 | Fuel Injector 4 Control | 844 | Lt Blu / Blk | B
14 | Not Used | -- | -- | --
15 | Not Used | -- | -- | --
16 | Not Used | -- | -- | --
17 | Fuel Injector 5 Control | 845 | Blk / Wht | B
18 | Fuel Injector 6 Control | 846 | Yel / Blk | B
19 | Not Used | -- | -- | --
20 | Not Used | -- | -- | --
21 | PCM Ground | 451 | Blk / Wht | G102
22 | Fuel Injector 8 Control | 878 | Dk Blu / Wht | B
23 | Not Used | -- | -- | --
24 | EVAP Control Solenoid Control | 428 | Dk Grn / Wht | B
25 | Vehicle Speed Output (4000 Pulses Per Mile) | 817 | Dk Grn / Wht | Muliple
26 | SES MIL Control | 419 | Brn / Wht | I/P Cluster
27 | Delivered Torque Output | 464 | Tan / Blk | 34
28 | Tachometer Output | 121 | Wht | A5
29 | Not Used | -- | -- | --
30 | Not Used | -- | -- | --
31 | Not Used | -- | -- | --
32 | Low Speed Fan Relay Control | 335 | Dk Grn | 86
33 | High Speed Fan Relay Control | 473 | Dk Blu | 86
34 | EGR Valve Control Ignition Feed | 839 | Pnk | E
35 | EGR Valve Control | 435 | Gry | A
36 | Fuel Pump Control | 465 | Dk Grn / Wht | B1
37 | PCM Ignition 1 Feed | 639 | Pnk | Fuse C7
38 | Not Used | -- | -- | --
39 | Not Used | -- | -- | --
40 | Not Used | -- | -- | --
41 | Not Used | -- | -- | --
42 | Not Used | -- | -- | --
43 | Not Used | -- | -- | --
44 | 4X Ref Hi Input | 430 | Ppl / Wht | C
45 | MAF Sensor Input | 492 | Yel | A
46 | Desired Torque Input | 463 | Orn / Blk | 12
47 | Not Used | -- | -- | --
48 | Ref Lo Input | 453 | Red / Blk | F
49 | Ignition Control Feedback | 423 | Wht | E
50 | Not Used | -- | -- | --
51 | Bypass Spark Output | 424 | Tan / Blk | D
52 | Not Used | -- | -- | --
53 | Not Used | -- | -- | --
54 | Not Used | -- | -- | --
55 | EVAP Vacuum Switch Input | 114 | Ppl | B
56 | Not Used | -- | -- | --
57 | Oil Pressure Switch Input | 231 | Tan / Blk | A
58 | Oil Level Switch Input | 1174 | Brn | A
59 | Not Used | -- | -- | --
60 | PCM Ground | 451 | Blk / Wht | G102
61 | Not Used | -- | -- | --
62 | Knock Sensor Input | 496 | Dk Blu | A
63 | Not Used | -- | -- | --
64 | Not Used | -- | -- | --
65 | Rear HO2S Input (Lo) | 1667 | Tan | A
66 | Rear HO2S Input (Hi) | 1666 | Ppl | B
67 | Pre-Converter HO2S Input (Hi) | 1665 | Ppl / Wht | B
68 | Pre-Converter HO2S Input (Lo) | 1653 | Tan / Wht | A
69 | Front HO2S Input (Hi) | 412 | PPL | B
70 | Front HO2S Input (Lo) | 413 | Tan | A
71 | Not Used | -- | -- | --
72 | Not Used | -- | -- | --
73 | Not Used | -- | -- | --
74 | ECT Sensor Input | 410 | Yel | B
75 | Not Used | -- | -- | --
76 | IAT Sensor Input | 472 | Tan | B
77 | EGR Valve Feedback | 1456 | Brn | C
78 | Not Used | -- | -- | --
79 | Not Used | -- | -- | --
80 | Not Used | -- | -- | --