Need '99 PCM Wiring Diagram
#1
Need '99 PCM Wiring Diagram
Anyone know where I can find a wiring diagram for a '99 automatic? I want to re-wire the engine harness and I want to eliminate the wires that go to the parts I have deleted. I am also wanting to see which wires go through the firewall. Thanks George
#4
Connector C1
• PCM Connector C1 Assembly 12191489
• TPA (BLU) 12176408
• Connector Cover 12191108
1
BLK
451
PCM Ground
2
LT GRN
1867
Crankshaft Position Sensor B+ Supply
3
PNK/BLK
1746
Injector 3 Control
4
LT GRN/BLK
1745
Injector 2 Control
5-7
--
--
Not Used
8
GRA
596
TP Sensor 5V Reference
9-10
--
--
Not Used
11
LT BLU
1876
Knock Sensor Signal Rear
12
DK BLU/WHT
1869
Crankshaft Position Sensor Signal
13-16
--
--
Not Used
17
DK BLU
1225
Transmission Range Signal B
18
RED
1226
Transmission Range Signal C
19
PNK
439
Ignition Positive Voltage
20
ORN
340
Battery Positive Voltage
21
YEL/BLK
1868
Crankshaft Position Sensor Reference Low
22
--
--
Not Used
23
GRA
720
Fuel Tank Pressure Sensor/Fuel Tank Sender Ground
24
--
--
Not Used
25
TAN
1671
HO2S Signal Low Bank 2 Sensor 2
26
TAN
1667
HO2S Signal Low Bank 2 Sensor 1
27
--
--
Not Used
28
TAN/WHT
1669
HO2S Signal Low Bank 1 Sensor 2
29
TAN/WHT
1653
HO2S Signal Low Bank 1 Sensor 1
30-31
--
--
Not Used
32
GRY
48
Clutch Pedal Position Switch Signal
33
PPL
420
TCC Brake Switch
34
ORN/BLK
434
PNP Switch Signal
35
--
--
Not Used
36
BLK
1744
Injector 1 Control
37
YEL/BLK
846
Injector 6 Control
38-39
--
--
Not Used
40
BLK
451
PCM Ground
41
BLK
407
EGR Pintle Position Sensor Ground
42
DK GRN
335
Engine Cooling Fan Relay 1 Control
43
RED/BLK
877
Injector 7 Control
44
LT BLU/BLK
844
Injector 4 Control
45
GRA
474
A/C Refrigerant Pressure Sensor 5V Reference
46
GRA
474
Fuel Tank Pressure Sensor 5V Reference
47
GRA
416
EGR Pintle Position Sensor 5V Reference
48
GRA
416
MAP Sensor 5V Reference
49-50
--
--
Not Used
51
DK BLU
496
Knock Sensor Signal Front
52
--
--
Not Used
53
BLK
407
Transmission Temperature Sensor Ground
54
ORN/BLK
407
MAP Sensor Ground
55
BRN
1456
EGR Pintle Position Sensor Signal
56
--
--
Not Used
57
ORN
340
Battery Positive Voltage
58
DK GRN
1049
Serial Data
59
--
--
Not Used
60
BLK
452
TP Sensor Ground
61
PNK/BLK
632
Camshaft Position Sensor Reference Low
62-64
--
--
Not Used
65
PPL
1670
HO2S Signal High Bank 2 Sensor 2
66
PPL
1666
HO2S Signal High Bank 2 Sensor 1
67
--
--
Not Used
68
PPL/WHT
1668
HO2S Signal High Bank 1 Sensor 2
69
PPL/WHT
1665
HO2S Signal High Bank 1 Sensor 1
70
BRN
1174
Low Oil Level Switch
71-72
--
--
Not Used
73
BRN/WHT
633
Camshaft Position (CMP) Sensor Signal
74
YEL
410
Engine Coolant Temperature (ECT) Sensor Signal
75
--
--
Not Used
76
BLK/WHT
845
Injector 5 Control
77
DK BLU/WHT
878
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
Engine Coolant Temperature (ECT) Sensor Ground
Connector C2
Information
• PCM Connector C2 Assembly 12191488
• TPA (RED) 12176410
• Connector Cover 12191108
1
BLK
451
PCM Ground
2
BRN
418
TCC Control Solenoid
3
--
--
Not Used
4
PPL
421
AIR Solenoid Relay Control
5
--
--
Not Used
6
RED/BLK
1228
Transmission Fluid Pressure Control Solenoid High
7
RED
1676
EGR Control
8
LT BLU/WHT
1229
Transmission Fluid Pressure Control Solenoid Low
9
DK GRN/WHT
465
Fuel Pump Relay Control
10
WHT
121
Engine Speed (Tach) Output Signal
11-12
--
--
Not Used
13
WHT
85
Cruise Control Enable Signal
14
RED/BLK
380
A/C Refrigerant Pressure Sensor Signal
15
RED
225
Alternator L Terminal
16
--
--
Not Used
17
DK GRN/WHT
762
A/C Request Signal
18
DK GRN
59
A/C Status Signal
19
--
--
Not Used
20
LT GRN/BLK
822
Vehicle Speed Sensor (VSS) Reference Low
21
PPL/WHT
821
Vehicle Speed Sensor (VSS) Signal
22-23
--
--
Not Used
24
DK BLU
417
TP Sensor Signal
25
TAN
472
IAT Sensor Signal
26
PPL
2121
Ignition Control 1
27
RED
2127
Ignition Control 7
28
LT BLU/WHT
2126
Ignition Control 6
29
DK GRN/WHT
2124
Ignition Control 4
30
DK BLU
229
VTD Fuel Enable Signal
31
YEL
492
MAF Sensor Signal
32
LT GRN
432
MAP Sensor Signal
33
DK BLU
473
Engine Cooling Fan Relay 2 and 3 Control
34
DK GRN/WHT
428
EVAP Canister Purge Valve Control
35
--
--
Not Used
36
BRN
436
AIR Pump Relay Control
37
DK GRN
83
Cruise Control Inhibit
38
--
--
Not Used
39
RED
631
Camshaft Position Sensor B+ Supply
40
BLK
451
PCM Ground
41
GRA
435
EGR Position Sensor Ground
42
TAN/BLK
422
TCC Enable Circuit
43
DK GRN/WHT
459
A/C Clutch Relay Control
44
LT GRN
1652
Reverse Inhibit Solenoid Control
45
WHT
1310
EVAP Canister Vent Valve Control
46
BRN/WHT
419
Malfunction Indicator Lamp (MIL) Control
47
YEL/BLK
1223
Transmission Shift Solenoid B
48
LT GRN
1222
Transmission Shift Solenoid A
49
--
--
Not Used
50
DK GRN/WHT
817
Vehicle Speed Output Circuit
51
YEL/BLK
1227
Transmission Temperature Sensor Signal
52
--
--
Not Used
53
GRA/BLK
1687
Spark Retard Signal
54
PPL
1589
Fuel Level Sensor Signal
55-56
--
--
Not Used
57
PPL
719
IAT Sensor Ground
58-59
--
--
Not Used
60
BRN
2129
Ignition Control Reference Low Bank 1
61
BRN/WHT
2130
Ignition Control Reference Low Bank 2
62
--
--
Not Used
63
PNK
1224
Transmission Range Signal A
64
DK GRN
890
Fuel Tank Pressure Sensor Signal
65
--
--
Not Used
66
PPL/WHT
2128
Ignition Control 8
67
RED/WHT
2122
Ignition Control 2
68
DK GRN
2125
Ignition Control 5
69
LT BLU
2123
Ignition Control 3
70-75
--
--
Not Used
76
LT GRN/WHT
1749
IAC Coil B High
77
LT GRN/BLK
444
IAC Coil B Low
78
LT BLU/BLK
1748
IAC Coil A Low
79
LT BLU/WHT
1747
IAC Coil A High
80
--
--
Not Used
• PCM Connector C1 Assembly 12191489
• TPA (BLU) 12176408
• Connector Cover 12191108
1
BLK
451
PCM Ground
2
LT GRN
1867
Crankshaft Position Sensor B+ Supply
3
PNK/BLK
1746
Injector 3 Control
4
LT GRN/BLK
1745
Injector 2 Control
5-7
--
--
Not Used
8
GRA
596
TP Sensor 5V Reference
9-10
--
--
Not Used
11
LT BLU
1876
Knock Sensor Signal Rear
12
DK BLU/WHT
1869
Crankshaft Position Sensor Signal
13-16
--
--
Not Used
17
DK BLU
1225
Transmission Range Signal B
18
RED
1226
Transmission Range Signal C
19
PNK
439
Ignition Positive Voltage
20
ORN
340
Battery Positive Voltage
21
YEL/BLK
1868
Crankshaft Position Sensor Reference Low
22
--
--
Not Used
23
GRA
720
Fuel Tank Pressure Sensor/Fuel Tank Sender Ground
24
--
--
Not Used
25
TAN
1671
HO2S Signal Low Bank 2 Sensor 2
26
TAN
1667
HO2S Signal Low Bank 2 Sensor 1
27
--
--
Not Used
28
TAN/WHT
1669
HO2S Signal Low Bank 1 Sensor 2
29
TAN/WHT
1653
HO2S Signal Low Bank 1 Sensor 1
30-31
--
--
Not Used
32
GRY
48
Clutch Pedal Position Switch Signal
33
PPL
420
TCC Brake Switch
34
ORN/BLK
434
PNP Switch Signal
35
--
--
Not Used
36
BLK
1744
Injector 1 Control
37
YEL/BLK
846
Injector 6 Control
38-39
--
--
Not Used
40
BLK
451
PCM Ground
41
BLK
407
EGR Pintle Position Sensor Ground
42
DK GRN
335
Engine Cooling Fan Relay 1 Control
43
RED/BLK
877
Injector 7 Control
44
LT BLU/BLK
844
Injector 4 Control
45
GRA
474
A/C Refrigerant Pressure Sensor 5V Reference
46
GRA
474
Fuel Tank Pressure Sensor 5V Reference
47
GRA
416
EGR Pintle Position Sensor 5V Reference
48
GRA
416
MAP Sensor 5V Reference
49-50
--
--
Not Used
51
DK BLU
496
Knock Sensor Signal Front
52
--
--
Not Used
53
BLK
407
Transmission Temperature Sensor Ground
54
ORN/BLK
407
MAP Sensor Ground
55
BRN
1456
EGR Pintle Position Sensor Signal
56
--
--
Not Used
57
ORN
340
Battery Positive Voltage
58
DK GRN
1049
Serial Data
59
--
--
Not Used
60
BLK
452
TP Sensor Ground
61
PNK/BLK
632
Camshaft Position Sensor Reference Low
62-64
--
--
Not Used
65
PPL
1670
HO2S Signal High Bank 2 Sensor 2
66
PPL
1666
HO2S Signal High Bank 2 Sensor 1
67
--
--
Not Used
68
PPL/WHT
1668
HO2S Signal High Bank 1 Sensor 2
69
PPL/WHT
1665
HO2S Signal High Bank 1 Sensor 1
70
BRN
1174
Low Oil Level Switch
71-72
--
--
Not Used
73
BRN/WHT
633
Camshaft Position (CMP) Sensor Signal
74
YEL
410
Engine Coolant Temperature (ECT) Sensor Signal
75
--
--
Not Used
76
BLK/WHT
845
Injector 5 Control
77
DK BLU/WHT
878
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
Engine Coolant Temperature (ECT) Sensor Ground
Connector C2
Information
• PCM Connector C2 Assembly 12191488
• TPA (RED) 12176410
• Connector Cover 12191108
1
BLK
451
PCM Ground
2
BRN
418
TCC Control Solenoid
3
--
--
Not Used
4
PPL
421
AIR Solenoid Relay Control
5
--
--
Not Used
6
RED/BLK
1228
Transmission Fluid Pressure Control Solenoid High
7
RED
1676
EGR Control
8
LT BLU/WHT
1229
Transmission Fluid Pressure Control Solenoid Low
9
DK GRN/WHT
465
Fuel Pump Relay Control
10
WHT
121
Engine Speed (Tach) Output Signal
11-12
--
--
Not Used
13
WHT
85
Cruise Control Enable Signal
14
RED/BLK
380
A/C Refrigerant Pressure Sensor Signal
15
RED
225
Alternator L Terminal
16
--
--
Not Used
17
DK GRN/WHT
762
A/C Request Signal
18
DK GRN
59
A/C Status Signal
19
--
--
Not Used
20
LT GRN/BLK
822
Vehicle Speed Sensor (VSS) Reference Low
21
PPL/WHT
821
Vehicle Speed Sensor (VSS) Signal
22-23
--
--
Not Used
24
DK BLU
417
TP Sensor Signal
25
TAN
472
IAT Sensor Signal
26
PPL
2121
Ignition Control 1
27
RED
2127
Ignition Control 7
28
LT BLU/WHT
2126
Ignition Control 6
29
DK GRN/WHT
2124
Ignition Control 4
30
DK BLU
229
VTD Fuel Enable Signal
31
YEL
492
MAF Sensor Signal
32
LT GRN
432
MAP Sensor Signal
33
DK BLU
473
Engine Cooling Fan Relay 2 and 3 Control
34
DK GRN/WHT
428
EVAP Canister Purge Valve Control
35
--
--
Not Used
36
BRN
436
AIR Pump Relay Control
37
DK GRN
83
Cruise Control Inhibit
38
--
--
Not Used
39
RED
631
Camshaft Position Sensor B+ Supply
40
BLK
451
PCM Ground
41
GRA
435
EGR Position Sensor Ground
42
TAN/BLK
422
TCC Enable Circuit
43
DK GRN/WHT
459
A/C Clutch Relay Control
44
LT GRN
1652
Reverse Inhibit Solenoid Control
45
WHT
1310
EVAP Canister Vent Valve Control
46
BRN/WHT
419
Malfunction Indicator Lamp (MIL) Control
47
YEL/BLK
1223
Transmission Shift Solenoid B
48
LT GRN
1222
Transmission Shift Solenoid A
49
--
--
Not Used
50
DK GRN/WHT
817
Vehicle Speed Output Circuit
51
YEL/BLK
1227
Transmission Temperature Sensor Signal
52
--
--
Not Used
53
GRA/BLK
1687
Spark Retard Signal
54
PPL
1589
Fuel Level Sensor Signal
55-56
--
--
Not Used
57
PPL
719
IAT Sensor Ground
58-59
--
--
Not Used
60
BRN
2129
Ignition Control Reference Low Bank 1
61
BRN/WHT
2130
Ignition Control Reference Low Bank 2
62
--
--
Not Used
63
PNK
1224
Transmission Range Signal A
64
DK GRN
890
Fuel Tank Pressure Sensor Signal
65
--
--
Not Used
66
PPL/WHT
2128
Ignition Control 8
67
RED/WHT
2122
Ignition Control 2
68
DK GRN
2125
Ignition Control 5
69
LT BLU
2123
Ignition Control 3
70-75
--
--
Not Used
76
LT GRN/WHT
1749
IAC Coil B High
77
LT GRN/BLK
444
IAC Coil B Low
78
LT BLU/BLK
1748
IAC Coil A Low
79
LT BLU/WHT
1747
IAC Coil A High
80
--
--
Not Used