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Connector Part Information · OEM: 34566-4403 · Service: See Catalog · Description: 73-Way F MX123 Harness Connector Assemb (BK) |
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Terminal Part Information · Pins: 4, 6, 9-13, 16, 18-20, 23, 24, 27-34, 36-38, 41, 47-50, 56-59, 61, 63-72 · Terminal/Tray: 33467-0003/23 · Core/Insulation Crimp: Pins 4, 10, 11, 19, 20, 47, 49, 64-66, 69 - See Terminal Repair Kit · Core/Insulation Crimp: Pins 6, 9, 12, 13, 16, 18, 23, 24, 27-34, 36-38, 41, 48, 50, 56-59, 61, 63, 67, 68, 70-72 - H/H · Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU) · Pins: 73 · Terminal/Tray: 7116-4152-02/9 · Core/Insulation Crimp: 2/5 · Release Tool/Test Probe: 12094430/J-35616-35 (VT) |
Engine Control Module (ECM) C1 (MM6/MZ6)Pin |
Wire Color |
Circuit No. |
Function |
|
1-3 |
-- |
-- |
Not Used |
|
4 |
PU/WH |
1035 |
Starter Relay Coil Supply Voltage |
|
5 |
-- |
-- |
Not Used |
|
6 |
GY/BK |
48 |
CPP Switch Signal |
|
7-8 |
-- |
-- |
Not Used |
|
9 |
WH |
17 |
Stop Lamp Switch Signal |
|
10 |
PU/WH |
1668 |
HO2S High Signal Bank 1 Sensor 2 |
|
11 |
TN/WH |
1669 |
HO2S Low Signal Bank 1 Sensor 2 |
|
12 |
OG/BK |
380 |
A/C Refrigerant Pressure Sensor Signal |
|
13 |
BK/WH |
2751 |
Low Reference |
|
14-15 |
-- |
-- |
Not Used |
|
16 |
D-BU |
1936 |
Fuel Level Sensor Signal - Secondary |
|
17 |
-- |
-- |
Not Used |
|
18 |
YE |
43 |
Accessory Voltage |
|
19 |
PK |
1439 |
Ignition 1 Voltage |
|
20 |
RD/WH |
2440 |
|
|
21-22 |
-- |
-- |
Not Used |
|
23 |
PU |
1272 |
Low Reference |
|
24 |
D-GN |
890 |
Fuel Tank Pressure Sensor Signal |
|
25-26 |
-- |
-- |
Not Used |
|
27 |
TN |
2501 |
ECM High Speed GMLAN Serial Data Bus - |
|
28 |
TN/BK |
2500 |
ECM High Speed GMLAN Serial Data Bus + |
|
29 |
D-BU |
1161 |
APP Sensor 1 Signal |
|
30 |
BN |
1271 |
Low Reference |
|
31 |
TN |
2759 |
Low Reference |
|
32 |
L-BU |
1162 |
APP Sensor 2 Signal |
|
33 |
GY |
2709 |
5-Volt Reference 1 |
|
34 |
GY |
2700 |
5-Volt Reference 1 |
|
35 |
-- |
-- |
Not Used |
|
36 |
TN |
1274 |
5-Volt Reference 1 |
|
37 |
TN |
472 |
IAT Sensor Signal |
|
38 |
TN |
2760 |
Low Reference |
|
39-40 |
-- |
-- |
Not Used |
|
41 |
YE |
492 |
MAF Sensor Signal |
|
42-46 |
-- |
-- |
Not Used |
|
47 |
PK |
439 |
Ignition 1 Voltage |
|
48 |
WH |
121 |
Engine Speed Signal |
|
49 |
TN |
1671 |
HO2S Low Signal Bank 2 Sensor 2 |
|
50 |
D-GN/WH |
465 |
Fuel Pump Relay Control |
|
51-55 |
-- |
-- |
Not Used |
|
56 |
WH/BK |
1164 |
5-Volt Reference 2 |
|
57 |
D-GN/WH |
817 |
Vehicle Speed Signal |
|
58 |
D-GN |
335 |
Cooling Fan Relay Control |
|
59 |
WH/BK |
448 |
Ignition 1 Relay Control |
|
60 |
-- |
-- |
Not Used |
|
61 |
WH |
1310 |
EVAP Canister Vent Solenoid Control |
|
62 |
-- |
-- |
Not Used |
|
63 |
D-GN/WH |
459 |
A/C Compressor Clutch Relay Control |
|
64 |
OG/WH |
3223 |
HO2S Heater Low Control Bank 2 Sensor 2 |
|
65 |
BN |
2391 |
HO2S Heater Low Control Bank 1 Sensor 2 |
|
66 |
GY |
587 |
Skip Shift Solenoid Control |
|
67 |
YE/BK |
625 |
Starter Enable Relay Control |
|
68 |
BN/WH |
419 |
MIL Control |
|
69 |
PU |
1670 |
HO2S High Signal Bank 2 Sensor 2 |
|
70 |
L-BU |
1937 |
Fuel Level Sensor Signal - Right |
|
71 |
YE |
400 |
VSS High Signal |
|
72 |
PU |
401 |
VSS Low Signal |
|
73 |
BK/WH |
451 |
Ground |
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Connector Part Information · OEM: 34566-4303 · Service: 88988931 · Description: 73-Way F MX123 Harness Connector Assemb (BK) |
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Terminal Part Information · Pins: 1, 9-13, 16, 18-20, 23, 24, 27-34, 36-38, 41, 47-50, 56-59, 61, 63-65, 67-70 · Terminal/Tray: 33467-0003/23 · Core/Insulation Crimp: Pins 1, 9, 12, 13, 16, 18, 23, 24, 27-34, 36-38, 41, 48, 50, 56-59, 61, 63, 67, 68, 70 - H/H · Core/Insulation Crimp: Pins 10, 11, 19, 20, 47, 49, 64, 65, 69 - See Terminal Repair Kit · Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU) · Pins: 73 · Terminal/Tray: 7116-4152-02/9 · Core/Insulation Crimp: 2/5 · Release Tool/Test Probe: 12094430/J-35616-35 (VT) |
Engine Control Module (ECM) C1 (MYC)Pin |
Wire Color |
Circuit No. |
Function |
|
1 |
OG/BK |
1786 |
Park/Neutral Signal |
|
2-8 |
-- |
-- |
Not Used |
|
9 |
WH |
17 |
Stop Lamp Switch Signal |
|
10 |
PU/WH |
1668 |
HO2S High Signal Bank 1 Sensor 2 |
|
11 |
TN/WH |
1669 |
HO2S Low Signal Bank 1 Sensor 2 |
|
12 |
OG/BK |
380 |
A/C Refrigerant Pressure Sensor Signal |
|
13 |
BK/WH |
2751 |
Low Reference |
|
14-15 |
-- |
-- |
Not Used |
|
16 |
D-BU |
1936 |
Fuel Level Sensor Signal - Secondary |
|
17 |
-- |
-- |
Not Used |
|
18 |
YE |
43 |
Accessory Voltage |
|
19 |
PK |
1439 |
Ignition 1 Voltage |
|
20 |
RD/WH |
2440 |
|
|
21-22 |
-- |
-- |
Not Used |
|
23 |
PU |
1272 |
Low Reference |
|
24 |
D-GN |
890 |
Fuel Tank Pressure Sensor Signal |
|
25-26 |
-- |
-- |
Not Used |
|
27 |
TN |
2501 |
ECM High Speed GMLAN Serial Data Bus - |
|
28 |
TN/BK |
2500 |
ECM High Speed GMLAN Serial Data Bus + |
|
29 |
D-BU |
1161 |
APP Sensor 1 Signal |
|
30 |
BN |
1271 |
Low Reference |
|
31 |
TN |
2759 |
Low Reference |
|
32 |
L-BU |
1162 |
APP Sensor 2 Signal |
|
33 |
GY |
2709 |
5-Volt Reference 1 |
|
34 |
GY |
2700 |
5-Volt Reference 1 |
|
35 |
-- |
-- |
Not Used |
|
36 |
TN |
1274 |
5-Volt Reference 1 |
|
37 |
TN |
472 |
IAT Sensor Signal |
|
38 |
TN |
2760 |
Low Reference |
|
39-40 |
-- |
-- |
Not Used |
|
41 |
YE |
492 |
MAF Sensor Signal |
|
42-46 |
-- |
-- |
Not Used |
|
47 |
PK |
439 |
Ignition 1 Voltage |
|
48 |
WH |
121 |
Engine Speed Signal |
|
49 |
TN |
1671 |
HO2S Low Signal Bank 2 Sensor 2 |
|
50 |
D-GN/WH |
465 |
Fuel Pump Relay Control |
|
51-55 |
-- |
-- |
Not Used |
|
56 |
WH/BK |
1164 |
5-Volt Reference 2 |
|
57 |
D-GN/WH |
817 |
Vehicle Speed Signal |
|
58 |
D-GN |
335 |
Cooling Fan Relay Control |
|
59 |
WH/BK |
448 |
Ignition 1 Relay Control |
|
60 |
-- |
-- |
Not Used |
|
61 |
WH |
1310 |
EVAP Canister Vent Solenoid Control |
|
62 |
-- |
-- |
Not Used |
|
63 |
D-GN/WH |
459 |
A/C Compressor Clutch Relay Control |
|
64 |
OG/WH |
3223 |
HO2S Heater Low Control Bank 2 Sensor 2 |
|
65 |
BN |
2391 |
HO2S Heater Low Control Bank 1 Sensor 2 |
|
66 |
-- |
-- |
Not Used |
|
67 |
YE/BK |
625 |
Starter Enable Relay Control |
|
68 |
BN/WH |
419 |
MIL Control |
|
69 |
PU |
1670 |
HO2S High Signal Bank 2 Sensor 2 |
|
70 |
L-BU |
1937 |
Fuel Level Sensor Signal - Right |
|
71-72 |
-- |
-- |
Not Used |
|
73 |
BK/WH |
451 |
Ground |
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Connector Part Information · OEM: 34566-4503 · Service: See Catalog · Description: 80-Way F Micro-Pack 64 Series (GY) |
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Terminal Part Information · Pins: 2, 3, 5, 6, 8, 11-13, 17-24, 26, 27, 29, 30, 32-35, 37-41, 43, 44, 50, 53, 56-61, 63-66, 68-79 · Terminal/Tray: 33467-0003/23 · Core/Insulation Crimp: Pins 2, 3, 21-24, 26, 27, 29, 30, 32-35, 41, 43, 44, 50, 53, 58, 61, 63-66, 68, 69 - H/H · Core/Insulation Crimp: Pins 5, 6, 8, 11-13, 17-20, 37-40, 56, 57, 59, 60, 70-79 - See Terminal Repair Kit · Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU) |
Engine Control Module (ECM) C2 (MM6/MZ6)Pin |
Wire Color |
Circuit No. |
Function |
|
1 |
-- |
-- |
Not Used |
|
2 |
L-GN |
1867 |
5-Volt Reference 2 |
|
3 |
L-BU/BK |
1688 |
5-Volt Reference 2 |
|
4 |
-- |
-- |
Not Used |
|
5 |
BN |
582 |
TAC Motor Control 2 |
|
6 |
YE |
581 |
TAC Motor Control 1 |
|
7 |
-- |
-- |
Not Used |
|
8 |
D-GN/WH |
428 |
EVAP Canister Purge Valve Control |
|
9-10 |
-- |
-- |
Not Used |
|
11 |
L-GN |
1652 |
Reverse Lockout Solenoid Control |
|
12 |
GY/WH |
3113 |
HO2S Heater Low Control Bank 1 Sensor 1 |
|
13 |
L-GN |
3212 |
HO2S Heater Low Control Bank 2 Sensor 1 |
|
14-16 |
-- |
-- |
Not Used |
|
17 |
D-BU/WH |
878 |
Fuel Injector 8 Control |
|
18 |
TN/WH |
845 |
Fuel Injector 5 Control |
|
19 |
YE/BK |
846 |
Fuel Injector 6 Control |
|
20 |
TN |
1744 |
Fuel Injector 1 Control |
|
21 |
YE |
410 |
ECT Sensor Signal |
|
22 |
TN |
2761 |
Low Reference |
|
23 |
TN/WH |
585 |
Transmission Fluid Temperature Sensor Signal |
|
24 |
OG/BK |
586 |
Low Reference |
|
25 |
-- |
-- |
Not Used |
|
26 |
D-BU |
496 |
KS Signal Bank 1 |
|
27 |
GY |
1716 |
KS Low Reference Bank 1 |
|
28 |
-- |
-- |
Not Used |
|
29 |
L-BU |
1876 |
KS Signal Bank 2 |
|
30 |
GY |
2303 |
KS Low Reference Bank 2 |
|
31 |
-- |
-- |
Not Used |
|
32 |
GY |
23 |
Generator Field Duty Cycle Signal |
|
33 |
BN |
1174 |
Oil Level Switch Signal |
|
34 |
BK |
2755 |
Low Reference |
|
35 |
TN/WH |
1704 |
Low Reference |
|
36 |
-- |
-- |
Not Used |
|
37 |
L-GN/BK |
1745 |
Fuel Injector 2 Control |
|
38 |
PK/BK |
1746 |
Fuel Injector 3 Control |
|
39 |
L-BU/BK |
844 |
Fuel Injector 4 Control |
|
40 |
OG/BK |
877 |
Fuel Injector 7 Control |
|
41 |
GY |
2705 |
5-Volt Reference 1 |
|
42 |
-- |
-- |
Not Used |
|
43 |
GY |
2704 |
5-Volt Reference 1 |
|
44 |
OG |
631 |
5-Volt Reference 1 |
|
45-49 |
-- |
-- |
Not Used |
|
50 |
TN/WH |
331 |
Oil Pressure Sensor Signal |
|
51-52 |
-- |
-- |
Not Used |
|
53 |
OG/BK |
469 |
Low Reference |
|
54-55 |
-- |
-- |
Not Used |
|
56 |
TN |
1664 |
HO2S Low Signal Bank 1 Sensor 1 |
|
57 |
PU/WH |
1665 |
HO2S High Signal Bank 1 Sensor 1 |
|
58 |
L-GN |
432 |
MAP Sensor Signal |
|
59 |
PU |
1666 |
HO2S High Signal Bank 2 Sensor 1 |
|
60 |
TN |
1667 |
HO2S Low Signal Bank 2 Sensor 1 |
|
61 |
OG |
225 |
Generator Turn On Signal |
|
62 |
-- |
-- |
Not Used |
|
63 |
PU |
486 |
TP Sensor 2 Signal |
|
64 |
BN/WH |
633 |
CMP Sensor Signal |
|
65 |
D-GN |
485 |
TP Sensor 1 Signal |
|
66 |
PK/BK |
632 |
Low Reference |
|
67 |
-- |
-- |
Not Used |
|
68 |
D-BU/WH |
1869 |
CKP Sensor Signal |
|
69 |
YE/BK |
1868 |
Low Reference |
|
70 |
PU |
2121 |
IC 1 Control |
|
71 |
PU/WH |
2128 |
IC 8 Control |
|
72 |
OG |
2127 |
IC 7 Control |
|
73 |
OG/WH |
2122 |
IC 2 Control |
|
74 |
L-BU/WH |
2126 |
IC 6 Control |
|
75 |
D-GN |
2125 |
IC 5 Control |
|
76 |
D-GN/WH |
2124 |
IC 4 Control |
|
77 |
L-BU |
2123 |
IC 3 Control |
|
78 |
BN |
2129 |
Low Reference |
|
79 |
BN/WH |
2130 |
Low Reference |
|
80 |
-- |
-- |
Not Used |
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Connector Part Information · OEM: 34566-4603 · Service: 19115670 · Description: 80-Way F Micro-Pack 64 Series (GY) |
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Terminal Part Information · Pins: 2, 3, 5, 6, 8, 12, 13, 17-22, 26, 27, 29, 30, 32-35, 37-41, 43, 44, 50, 53, 56-61, 63-66, 68-79 · Terminal/Tray: 33467-0003/23 · Core/Insulation Crimp: Pins 2, 3, 21, 22, 26, 27, 29, 30, 32-35, 41, 43, 44, 50, 53, 58, 61, 63-66, 68, 69 - H/H · Core/Insulation Crimp: Pins 5, 6, 8, 12, 13, 17-20, 37-40, 56, 57, 59, 60, 70-79 - See Terminal Repair Kit · Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU) |
Engine Control Module (ECM) C2 (MYC)Pin |
Wire Color |
Circuit No. |
Function |
|
1 |
-- |
-- |
Not Used |
|
2 |
L-GN |
1867 |
5-Volt Reference 2 |
|
3 |
L-BU/BK |
1688 |
5-Volt Reference 2 |
|
4 |
-- |
-- |
Not Used |
|
5 |
BN |
582 |
TAC Motor Control 2 |
|
6 |
YE |
581 |
TAC Motor Control 1 |
|
7 |
-- |
-- |
Not Used |
|
8 |
D-GN/WH |
428 |
EVAP Canister Purge Valve Control |
|
9-11 |
-- |
-- |
Not Used |
|
12 |
GY/WH |
3113 |
HO2S Heater Low Control Bank 1 Sensor 1 |
|
13 |
L-GN |
3212 |
HO2S Heater Low Control Bank 2 Sensor 1 |
|
14-16 |
-- |
-- |
Not Used |
|
17 |
D-BU/WH |
878 |
Fuel Injector 8 Control |
|
18 |
TN/WH |
845 |
Fuel Injector 5 Control |
|
19 |
YE/BK |
846 |
Fuel Injector 6 Control |
|
20 |
TN |
1744 |
Fuel Injector 1 Control |
|
21 |
YE |
410 |
ECT Sensor Signal |
|
22 |
TN |
2761 |
Low Reference |
|
23-25 |
-- |
-- |
Not Used |
|
26 |
D-BU |
496 |
KS Signal Bank 1 |
|
27 |
GY |
1716 |
KS Low Reference Bank 1 |
|
28 |
-- |
-- |
Not Used |
|
29 |
L-BU |
1876 |
KS Signal Bank 2 |
|
30 |
GY |
2303 |
KS Low Reference Bank 2 |
|
31 |
-- |
-- |
Not Used |
|
32 |
GY |
23 |
Generator Field Duty Cycle Signal |
|
33 |
BN |
1174 |
Oil Level Switch Signal |
|
34 |
BK |
2755 |
Low Reference |
|
35 |
TN/WH |
1704 |
Low Reference |
|
36 |
-- |
-- |
Not Used |
|
37 |
L-GN/BK |
1745 |
Fuel Injector 2 Control |
|
38 |
PK/BK |
1746 |
Fuel Injector 3 Control |
|
39 |
L-BU/BK |
844 |
Fuel Injector 4 Control |
|
40 |
OG/BK |
877 |
Fuel Injector 7 Control |
|
41 |
GY |
2705 |
5-Volt Reference 1 |
|
42 |
-- |
-- |
Not Used |
|
43 |
GY |
2704 |
5-Volt Reference 1 |
|
44 |
OG |
631 |
5-Volt Reference 1 |
|
45-49 |
-- |
-- |
Not Used |
|
50 |
TN/WH |
331 |
Oil Pressure Sensor Signal |
|
51-52 |
-- |
-- |
Not Used |
|
53 |
OG/BK |
469 |
Low Reference |
|
54-55 |
-- |
-- |
Not Used |
|
56 |
TN |
1664 |
HO2S Low Signal Bank 1 Sensor 1 |
|
57 |
PU/WH |
1665 |
HO2S High Signal Bank 1 Sensor 1 |
|
58 |
L-GN |
432 |
MAP Sensor Signal |
|
59 |
PU |
1666 |
HO2S High Signal Bank 2 Sensor 1 |
|
60 |
TN |
1667 |
HO2S Low Signal Bank 2 Sensor 1 |
|
61 |
OG |
225 |
Generator Turn On Signal |
|
62 |
-- |
-- |
Not Used |
|
63 |
PU |
486 |
TP Sensor 2 Signal |
|
64 |
BN/WH |
633 |
CMP Sensor Signal |
|
65 |
D-GN |
485 |
TP Sensor 1 Signal |
|
66 |
PK/BK |
632 |
Low Reference |
|
67 |
-- |
-- |
Not Used |
|
68 |
D-BU/WH |
1869 |
CKP Sensor Signal |
|
69 |
YE/BK |
1868 |
Low Reference |
|
70 |
PU |
2121 |
IC 1 Control |
|
71 |
PU/WH |
2128 |
IC 8 Control |
|
72 |
OG |
2127 |
IC 7 Control |
|
73 |
OG/WH |
2122 |
IC 2 Control |
|
74 |
L-BU/WH |
2126 |
IC 6 Control |
|
75 |
D-GN |
2125 |
IC 5 Control |
|
76 |
D-GN/WH |
2124 |
IC 4 Control |
|
77 |
L-BU |
2123 |
IC 3 Control |
|
78 |
BN |
2129 |
Low Reference |
|
79 |
BN/WH |
2130 |
Low Reference |
|
80 |
-- |
-- |
Not Used |