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Terminal Arrangement of ECM Coupler (Viewed from Harness Side)

Fig 1: Identifying ECM Coupler Connector
G05471866Courtesy of SUZUKI OF AMERICA CORP.

Connector: C01 

CONNECTOR TERMINAL REFERENCE - C01

Terminal Wire color Circuit
1 BLU/YEL Fuel injector No. 1
2 BLU/WHT Fuel injector No. 2
3 - -
4 - -
5 - -
6 - -
7 GRN P/S pump pressure switch signal
8 - -
9 - -
10 - -
11 BRN Oxygen signal of HO2S
12 RED/BLU A/C refrigerant pressure sensor signal
13 BLU/BLK EVAP canister purge valve output
14 GRY/RED Output of 5 V power source for A/C refrigerant pressure sensor
15 BLK Ground for ECM
16 BLU/RED Fuel injector No. 3
17 BLU/ORN Fuel injector No. 4
18 GRN Ignition coil No. 4
19 GRN/BLK Ignition coil No. 3
20 GRN/WHT Ignition coil No. 2
21 GRN/YEL Ignition coil No. 1
22 YEL/GRN Starting motor signal
23 - -
24 LT GRN ECT sensor signal
25 LT GRN/BLK IAT sensor signal
26 PNK/BLK MAF sensor signal
27 GRY Ground for MAF sensor
28 BLU/YEL Generator control signal output
29 BLK Ground for ECM
30 BLK Ground for ECM
31 BLK Ground for A/F sensor heater
32 RED Heater output of A/F sensor
33 BLK Shield ground for TP sensor circuit
34 - -
35 - -
36 BLU CKP sensor (-)
37 BLK A/F sensor signal (-)
38 WHT A/F sensor signal (+)
39 BLK/RED Ground for HO2S
40 WHT TP sensor (sub) signal
41 BLK Ground for TP sensor
42 YEL IMT valve actuator (+)
43 YEL/BLK IMT valve actuator (-)
44 YEL Output of throttle actuator
45 BLU Output of throttle actuator
46 - -
47 RED/BLU Heater output of HO2S
48 BLK/ORN Ground for ECM
49 WHT CAN (low) communication line (active low signal) to TCM
50 RED CAN (high) communication line (active high signal) to TCM
51 PNK CKP sensor (+)
52 RED/YEL CMP sensor signal
53 RED Output for 5 V power source of TP sensor
54 GRN TP sensor (main) signal
55 - -
56 RED Knock sensor signal
57 GRY/BLU Ground for sensors
58 BLK/ORN Ground for ECM
59 - -
60 - -

Connector: E01 

CONNECTOR TERMINAL REFERENCE - E01

Terminal Wire color Circuit
1 BLK/RED Main power supply
2 WHT/RED Power source for ECM internal memory
3 - -
4 RED CAN (high) communication line (active high signal) to ABS/ESP® control module
5 - -
6 RED/WHT Cruise control main switch signal
7 LT GRN/BLK Clutch pedal position switch signal (cruise control model)
8 GRN/YEL Brake pedal position switch (cruise control model)
9 - -
10 - -
11 YEL EVAP leak check pressure sensor signal
12 - -
13 YEL/RED Clock signal for immobilizer coil antenna
14 - -
15 GRN/WHT Fuel pump relay output
16 BLK/RED Main power supply
17 GRN Power supply of throttle actuator drive circuit
18 - -
19 WHT CAN (low) communication line (active low signal) to ABS / ESP® control module
20 GRN/WHT Brake light switch signal
21 BLK/YEL Cruise control command switch ground
22 LT GRN Cruise control command switch signal
23 - -
24 YEL/RED Fuel level sensor signal
25 - -
26 - -
27 RED/BLU EPS active signal (idle up signal)
28 YEL/BLK Serial communication line for immobilizer coil antenna
29 BLK/YEL (Canada model) Ignition switch signal
BLK/WHT (other than Canada model)
30 WHT Starting motor control relay output
31 - -
32 - -
33 ORN Ground for EVAP leak check pressure sensor
34 - -
35 BLU/WHT Electric load signal for heater blower motor
36 ORN Ground for sensor
37 - -
38 - -
39 GRY/RED Output of 5V power source for EVAP leak check pressure sensor
40 WHT/GRN -
41 WHT/BLK A/C evaporator outlet air temp. sensor signal (Manual A/C model)
42 - -
43 - -
44 BRN Engine speed signal output for P/S control module (electric P/S model)
45 - -
46 LT GRN Radiator cooling fan relay No. 1 output
47 GRN Radiator cooling fan relay No. 2/No. 3 output
48 RED/BLK A/C condenser cooling fan relay output
49 GRY A/C compressor relay output
50 BRN Throttle actuator control relay output
51 WHT Ground for APP sensor (sub)
52 YEL APP sensor (sub) signal
53 RED Output for 5 V power source of APP sensor (sub)
54 BLU Ground for APP sensor (main)
55 GRN APP sensor (main) signal
56 BRN Output for 5 V power source of APP sensor (main)
57 WHT EVAP leak detection pump output
58 - -
59 GRN EVAP vent valve output
60 BRN/WHT Main power supply relay output