Chassis DT Chassis DTM
1 Rev lights 1 12v constant +
2 Coil 2 2 Speed sensor out
3 12v constant + 3 tachometer
4 - 4 MIL light
5 Starter solenoid 5 ACC
6 Coil 1 6 AC
7 Inj power + 7 AC 0V
8 Ecu/sensor + 8 AC 5v
9 GND 9 fuel level
10 Fan 1 Control 10 brake Light sw
11 Fan 2 Control 11
12 Fuel Control 12
73 Pin Black E38 ecm Yellow= un-needed, Blue = standalone , Red = auto
Pin Wire Function
1 -- --
2 -- --
3 -- --
4 -- --
5 -- --
6 -- --
7 -- --
8 -- --
9 brn/wht Brake Switch Signal to brake switch at brake pedal, 12v+ hot with brakes applied. Open when NOT on the brakes.
10 -- --
11 -- --
12 blu/red AC pressure signal (spare)
13 grn/wht AC pressure 0V (spare)
14 -- --
15 -- --
16 grn/blu Fuel Level (spare)
17 grn/red High Speed Cooling Fan Relay Control
18 -- --
19 yel/blk Ignition 1 Voltage ECM 12v+ KEY Power
20 wht/grn Battery Constant Voltage ECM 12v+
21 -- --
22 -- --
23 wht/grn Low Reference - APP Sensor Pin A
24 -- --
25 -- --
26 -- --
27 wht High Speed GMLAN Serial Data Bus (-) obd2
28 wht/blu High Speed GMLAN Serial Data Bus (+) obd2
29 wht APP Sensor 1 Signal - APP Sensor Pin E
30 wht Low Reference - APP Sensor Pin F
31 wht/blk shield drain for pedal
32 wht/blu APP Sensor 2 Signal - APP Sensor Pin B
33 -- --
34 yel/blu AC pressure 5V+ (spare)
35 -- --
36 wht/orng 5-Volt Reference 1 - APP Sensor Pin C
37 red/yel IAT Sensor Signal - MAF Pin D
38 grn/wht Low Reference - MAF Pin E (for IAT)
39 -- --
40 -- --
41 grn/blk MAF Sensor Signal - MAF Pin A
42 -- --
43 -- --
44 -- --
45 -- --
46 -- --
47 yel/blk Ignition 1 Voltage ECM 12v+ KEY Power
48 blu TACH SIGNAL OUTPUT
49 -- --
50 grn/yel Fuel Pump Relay Control
51 -- --
52 -- --
53 -- --
54 -- --
55 -- --
56 wht/red 5-Volt Reference 2 - APP Sensor Pin D
57 blu/wht VSS Out
58 grn Low Speed Cooling Fan Relay Control
59 -- --
60 -- --
61 -- --
62 -- --
63 -- --
64 blk/red AC Control
65 -- --
66 -- --
67 -- --
68 grn/orng MIL Control - "Service Engine Soon" Computer supplies GROUND to turn on light
69 -- --
70 -- --
-- --
71 blu/red VSS High Signal - TO SPEED SENSOR ON MANUAL TRANS
72 blu/blk VSS Low Signal - TO SPEED SENSOR ON MANUAL TRANS
73 blk Ground
80 Pin Grey
Pin Wire Function
1 -- --
2 wht/orng Crankshaft 5V Pin C
3 yel/blu 5-Volt Reference 2 - Throttle Body Pin E
4 -- --
5 wht TAC Motor Control - 2 - Throttle Body Pin A
6 wht/blu TAC Motor Control - 1 - Throttle Body Pin B
7 -- --
8 -- --
9 -- --
10 -- --
11 grn/yel Reverse Lockout solenoid
12 red/blu HO2S Heater Low Control - Bank 1 Sensor 1
13 red/blu HO2S Heater Low Control - Bank 2 Sensor 1
14 -- --
15 -- --
16 -- --
17 yel Fuel Injector 8 Control
18 brn Fuel Injector 5 Control
19 red Fuel Injector 6 Control
20 brn Fuel Injector 1 Control
21 red/wht ECT SSignal - ECT Pin B
22 grn/wht ECT 0V Pin A
23 -- --
24 -- --
25 -- --
26 wht KS 1 Signal - KS1 Pin A
27 wht/blu KS 1 Signal - KS1 Pin B
28 -- --
29 wht KS 2 Signal - KS2 Pin A
30 wht/blu KS 2 Signal - KS2 Pin B
31 -- --
32 wht/blu Generator Field Duty Cycle Signal
33 -- --
34 grn/wht Oil Pressure 0V Pin 1
35 grn/wht Low Reference - Throttle Body Pin C
36 -- --
37 red Fuel Injector 2 Control
38 blu Fuel Injector 3 Control
39 yel Fuel Injector 4 Control
40 blu Fuel Injector 7 Control
41 yel/blu Oil Pressure 5V Pin 2
42 -- --
43 yel/blu MAP 5V Pin C
44 wht/orng Camshaft 5V Pin A
45 -- --
46 -- --
47 -- --
48 -- --
49 -- --
50 yel/red Oil Pressure Signal Pin 3
51 -- --
52 wht/blk Shield drain
53 grn/wht MAP 0V Pin A
54 -- --
55 -- --
56 wht/yel HO2S Low Signal - Bank 1 Sensor 1
57 wht/red HO2S High Signal - Bank 1 Sensor 1
58 grn/red MAP Sensor Signal Pin B
59 wht/red HO2S High Signal - Bank 2 Sensor 1
60 wht/yel H02S Low Signal - Bank 2 Sensor 1
61 blk/yel Alt Charge Indicator Signal 12V turn on
62 -- --
63 wht/blu TP Sensor 2 Signal - Throttle Body Pin F
64 wht Camshaft Signal Pin C
65 wht TP Sensor 1 Signal - Throttle Body Pin D
66 wht/blu Camshaft 0V Pin B
67 -- --
68 wht Crankshaft Signal Pin A
69 wht/blu Crankshaft 0V Pin B
70 brn IC 1 Control
71 yel IC 8 Control
72 blu IC 7 Control
73 red IC 2 Control
74 red IC 6 Control
75 brn IC 5 Control
76 yel IC 4 Control
77 blu IC 3 Control
78 grn/wht Low Reference - Coil Connector Pin E Odd Bank
79 grn/wht Low Reference - Coil Connector Pin E Even Bank
80 -- --
