ECU Pinouts


'94 ABA OBDI ECU Pin Out

T68ColorPurpose
1brn/redGround
2wht/gryInjector #2
5yel/blkCalifornia Only
6yel/bluFuel Pump Relay
brn/redGround
8blk/redCoil signal
9blk/brnECM Power
14bluCoolant Temperature Sensor
15violetEGR Temp Sensor
16brn/redMAF
17redMAF
18yel/redAuto Transmission Control Module
20whiteO2 Sensor signal (White)
21yellowDiagnostic Connector
22grn/blkTach Signal
23red/bluSwitched Power for EGR, MAF, O2 Heater
24wht/blk#1 Fuel Injector
25wht/grn#3 Fuel Injector
26wht/blu#4 Fuel Injector
27whiteIdle Air Control Valve (White)
28whiteO2 Sensor Heater Control Module
30 grn/gryEGR Frequency Valve
31grn/yelEvap. Canistor Purge Valve
33brownGround
34blueKnock Sensor
36blu/grnIntake Air Temp. Sensor
37grnAC Switch
38blkSwitched Ignition Power In
39bluAC Switch
40grn/whtThrottle Postion Sensor
41blk/yelCalifornia Only
42yellowO2 Sensor signal (Gray)
43gry/whtDiagnostic Connector
44wht/redCrankshaft Position Sensor
51violet/whtFuel Consumption Signal
53blk/whtIdle Air Control Valve (Blk/Wht)
54red/yelBattery +
55brn/blkGround
56brn/whtGround
58whiteGround (Auto Only)
65blu/whtFuel Level Signal to Instruments
67redEngine Speed Sensor Signal
68greenEngine Speed Sensor Power for Signal

ABA OBDII ECU Pin Out

T68ColorPurpose
1brnGround
2gry/red#4 Fuel Injector
3yel/blkCEL
6yel/bluFuel Pump Relay Ground
7brn/redGround
8blk/redCoil signal
10wht/grnThrottle Body
12grnO2 Heating element ground
13wht/redO2 Sensor signal
14bluCoolant Temperature Sensor
16brn/bluMAF
17bluMAF
18yel/redTransmission Control Module
20whiteO2 Sensor signal
21yel/bluTransmission Control Module
22gry/whtControl Module Display/Transmission Control
23blk/yelSwitched Power
24gray#1 Fuel Injector
25gry/grn#2 Fuel Injector
26gry/blu#3 Fuel Injector
27whiteThrottle Body
31grn/yelEVAP Canister Purge Valve
33brn/bluWiring Connection/ sensors, Throttle body, etc
34gry/whtKnock Sensor
35yel/brnLeak Detection Pump
36wht/yelIntake Air Temperature Sensor
37grnTransmission Control Module
39blu/redAC Engagement
40red/bluThrottle Body
41red/whtThrottle Body
42yel/bluO2 Sensor signal
43gry/whtData Link Connector
44grn/whtCamshaft Position Sensor
46gry/lilacLeak Detection Pump
49gry/brnSecondary Air injection Pump Relay
50red/yelSecondary Air injection solenoid valve
53whiteThrottle Body
54redBattery +
56brn/yelGround
58wht/yellO2 Sensor signal
62red/grnThrottle Body
65blu/whtVSS
66brn/whtO2 Heating element ground
67redRPM Sensor
68grn/whtRPM Sensor

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