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ENGINE DRIVEABILITY AND EMISSIONS 6E–39
ECM WIRING DIAGRAM (7/9)
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6E–40 ENGINE DRIVEABILITY AND EMISSIONS
ECM WIRING DIAGRAM (8/9)
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ENGINE DRIVEABILITY AND EMISSIONS 6E–41
ECM WIRING DIAGRAM (9/9)
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6E–42 ENGINE DRIVEABILITY AND EMISSIONS
ECM CONNECTOR PIN ASSIGNMENT & OUTPUT SIGNAL
Connector J1 Port: View Looking Into ECM Case
1
17 16
32
PIN16
PIN1
PIN17 PIN32
Pin
No. B/
Box
No. Pin Function
Wire
Color Signal or Continuity
ECM
Connection Tester Position
Key SW Off Key SW
On Engine
Idle Engine
2000rpm Range (+) (-)
J1-1 J1-1 Ground BLK/
WHT Continuity
with
ground -
- - Disconnect ΩJ1-1 GND
J1-2 J1-2 Ground BLK/
WHT Continuity
with
ground -
- - Disconnect ΩJ1-2 GND
J1-3 J1-3 Knock Sensor Signal YEL Less than 1V--- ----
J1-4 J1-4 No Connection - --- - -- - -
J1-5 J1-5 Canister Purge Solenoid Valve RED/
YEL Less than
1V Wave form G or 12-14V
Connect DC V J1-5 GND
J1-6 J1-6 Crankshaft Position (CKP) Sensor (Ground) RED Approx.
0.58kΩ -
- - Disconnect ΩJ1-6 J1-21
J1-7 J1-7 Throttle Position Sensor (TPS) Output
Signal BLU Less than
1V Approx 0.7V Approx
0.8VConnect DC V J1-7 J1-32
J1-8 J1-8 No. 3 Injector GRN/
BLK Less than
1V Wave form E or 12-14V
Connect DC V J1-8 GND
J1-9 J1-9 No. 1 Injector GRN/
WHT Less than
1V Wave form E or 12-14V
Connect DC V J1-9 GND
J1-10 J1-10 No Connection - --- - -- - -
J1-11 J1-11 No. 4 Injector GRN Less than
1V Wave form E or 12-14V
Connect DC V J1-11 GND
J1-12 J1-12 No Connection - --- - -- - -
J1-13 J1-13 Idle Air Control Valve (IACV) Coil B High BLU/
RED Less than
1V Less than 1V / 10-14V
Connect DC V J1-13 GND
J1-14 J1-14 No Connection - --- - -- - -
J1-15 J1-15 Throttle Position Sensor (TPS) Power
Supply RED Less than
1V Approx. 5V
Connect DC V J1-15 J1-32
J1-16 J1-16 MAP Sensor Ground GRN Continuity with
ground -
- - Connect ΩJ1-16 GND
J1-17 J1-17 Ground BLK/
WHT Continuity
with
ground -
- - Connect ΩJ1-17 GND
J1-18 J1-18 Coil Module 2 (No. 2 & 3 Cylinder) BLU -
-Wave form F -- - -
J1-19 J1-19 Coil Module 1 (No. 1 & 4 Cylinder) GRN -
-Wave form F -- - -
J1-20 J1-20 No Connection - --- - -- - -
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ENGINE DRIVEABILITY AND EMISSIONS 6E–43
J1-21 J1-21 Crankshaft Position (CKP) Sensor Signal WHT - - Wave form
or approx. 3.7V Wave form
A or
approx. 7.8V Connect AC V J1-21 J1-6
J1-22 J1-22 No.2 Injector GRN/
WHT Less than
1V Wave form E or 12-14V
Connect DC V J1-22 GND
J1-23 J1-23 No Connection - --- - -- - -
J1-24 J1-24 MAP Sensor Signal GRY Less than 1VApprox.
4.8V Approx.
1.3V Approx.
0.9V Connect DC V J1-24 J1-16
J1-25 J1-25 No Connection - --- - -- - -
J1-26 J1-26 No Connection - --- - -- J1-26 -
J1-27 J1-27 Engine Coolant Temp. (ECT) Sensor Signal GRY Less than
1V
20℃: Approx. 2.4V / 40 ℃: Approx. 1.4V or
4.1V / 60 ℃: Approx. 3.3V / 80 ℃: Approx.
2.5VConnect DC V J1-27 J1-32
J1-28 J1-28 Idle Air Control Valve (IACV) Coil A High BLU Less than
1V Less than 1V / 10-14V
Connect DC V J1-28 GND
J1-29 J1-29 Idle Air Control Valve (IACV) Coil B Low BLU/
BLK Less than
1V Less than 1V / 10-14V
Connect DC V J1-29 GND
J1-30 J1-30 Idle Air Control Valve (IACV) Coil A Low BLU/
WHT Less than
1V Less than 1V / 10-14V
Connect DC V J1-30 GND
J1-31 J1-31 MAP Sensor Power Supply RED Less than
1V Approx.. 5V
Connect DC V J1-31 J1-16
J1-32 J1-32 ECT Sensor, Knock Sensor, Throttle
Position Sensor Ground GRN Continuity
with
ground -
- - Connect ΩJ1-32 GND
Pin
No. B/
Box No. Pin Function
Wire
Color Signal or Continuity
ECM
Connection Tester Position
Key SW Off Key SW
On Engine
Idle Engine
2000rpm Range (+) (-)
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6E–44 ENGINE DRIVEABILITY AND EMISSIONS
Connector J2 Port: View Looking Into ECM Case
1
17 16
32
PIN32
PIN1
PIN17
PIN16
Pin
No. B/
Box No. Pin Function
Wire
Color Signal or Continuity
ECM
Connection Tester Position
Key SW Off Key SW
On Engine
Idle Engine
2000rpm Range (+) (-)
J2-1 J2-1 Intake Air Temp. (IAT) Sensor Ground GRN Continuity
with
ground -
- - Disconnect ΩJ2-1 GND
J2-2 J2-2 Battery Power Supply RED/ WHT10-14V
Connect DC V J2-2 GND
J2-3 J2-3 Ignition Power Supply BLU/ YELLess than
1V 10-14V
Connect DC V J2-3 GND
J2-4 J2-4 To Data Link Connector No. 6 BLU -
-- - -- - -
J2-5 J2-5 No Connection -- - - - -- - -
J2-6 J2-6 Oxygen Sensor (Ground) PNK Continuity
with
ground -
- - Connect ΩJ2-6 GND
J2-7 J2-7 No Connection -- - - - -- - -
J2-8 J2-8 No Connection -- - - - -- - -
J2-9 J2-9 No Connection -- - - - -- - -
J2-10 J2-10 CO Adjust Signal (W/O Catalystic
Converter) YEL -
-- - -- - -
J2-11 J2-11 Fuel Pump Relay GRN/ WHT10-14V
While relay
is activated; 10-14V
Relay is not
activated;
Less than 1V10-14V Connect DC V J2-11 GND
J2-12 J2-12 No Connection -- - - - -- - -
J2-13 J2-13 A/C Compressor Relay GRY/
RED Less than
1V A/C comp. is operated: Less than 1V
A/C comp. is not operated: 10-14V Connect DC V J2-13 GND
J2-14 J2-14 No Connection -- - - - -- - -
J2-15 J2-15 No Connection -- - - - -- - -
J2-16 J2-16 No Connection -- - - - -- - -
J2-17 J2-17 CO Adjust (W/O Catalystic Converter) RED -
-- - -- - -
J2-18 J2-18 Battery Power Supply RED/ WHT10-14V
Connect DC V J2-18 GND
J2-19 J2-19 No Connection -- - - - -- - -
J2-20 J2-20 Power Steering Pressure Switch GRN/
YEL Less than
1V
Pressure switch is turned on: Less than 1VPressure switch is turned off: 10-14VConnect DC V J2-20 GND
J2-21 J2-21 Oxygen Sensor BLU Less than 1VApprox.
0.4V Wave form D or 0.1 -
0.9V Connect DC V J2-21 J2-6
J2-22 J2-22 Intake Air Temp. (IAT) Sensor (Signal) YEL/
GRN Less than
1V
20℃: Approx. 2.9V / 40 ℃: Approx. 1.8V V
/ 60 ℃: Approx. 1.1V / 80 ℃: Approx. 0.6VConnect DC V J2-22 33
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ENGINE DRIVEABILITY AND EMISSIONS 6E–45
J2-23 J2-23 Vehicle Speed Sensor (VSS) Signal
(Immobilizer Control
Unit Terminal B8) WHT -
- Wave form C or Approx.
6.5V at 20km/h Connect AC V J2-23 GND
J2-24 J2-24 No Connection -- - - - -- - -
J2-25 J2-25 Tachometer Output Signal BLK/
RED -
- Wave form Wave form
B or
Approx.
4.5V Connect AC V J2-25 GND
J2-26 J2-26 Thermo Relay GRN/
BLK Less than
1V
A/C request is activated: 10-14V
A/C request is not activated: Less than 1VConnect DC V J2-26 GND
J2-27 J2-27 No Connection - - - - - - - - -
J2-28 J2-28 No Connection - - - - - - - - -
J2-29 J2-29 No Connection -- - - - -- - -
J2-30 J2-30 To Data Link Connector No. 2 GRN -
-- - -- - -
J2-31 J2-31 Oxygen Sensor Heater BLU/ WHTContinuity
with
ground - Wave
Form Wave
Form D Connect
ΩJ2-31 GND
J2-32 J2-32 Check Engine Lamp (Immobilizer Control
Unit Terminal B7) BRN/
YEL Less than
1V Less than
1V Lamp is turned on: Less
than 1V
Lamp is turned off: 10-
14V Connect DC V J2-32 GND
Pin
No. B/
Box No. Pin Function
Wire
Color Signal or Continuity
ECM
Connection Tester Position
Key SW Off Key SW
On Engine
Idle Engine
2000rpm Range (+) (-)
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6E–46 ENGINE DRIVEABILITY AND EMISSIONS
Reference Wave Form
Crankshaft Position (CKP) Sensor Reference W ave Form
0V
Measurem ent Term inal: J1-21(+) J1-6(-)
Measurem ent Scale: 10V/div 5m s/div
Measurem ent Condition: Approxim ately 2000rpm
Vehicle Speed Sensor (VSS) Reference Wave Form
CH1
0V
CH2
0V
M easurem ent Term inal: CH1: ECM J2-23(+) / CH2: VSS 3(+) GND(-)
M easurem ent Scale: CH1: 10V/div / CH2: 10V/div 50m s/div
Measurem ent Condition: Approxim ately 20km /h
Note: The vehicle is w ithout imm obilizer system,
CH1 signal is same as CH2.
Injector Control Signal Reference W ave Form
0V
Measurem ent Term inal: J1-9(+) (No.1 Cylinder) GND(-)
Measurement Scale: 20V/div 5ms/div
Measurem ent Condition: Approximately 2000rpm
Crankshaft Position (CKP) Sensor & Tacho Output Signal
Reference W ave Form
CH1
0V
CH2
0V
Measurement Terminal: CH1: J1-21(+) / CH2: J2-25(+) GND(-)
Measurement Scale: CH1: 2V/div / CH2: 10V/div 5ms/div
Measurement Condition: Approximately 2000rpm
Heated Oxygen Sensor (HO2S) Reference Wave Form
0V
Measurem ent Terminal: J2-21(+) GND(-)
Measurem ent Scale: 500m V/div 500m s/div
Measurement Condition: Approxim ately 2000rpm in Closed Loop
Ignition Coil Control Signal Reference Wave Form
CH1
0V
CH2
0V
Measurement Terminal: CH1: J1-19(+) / CH2: J1-18(+) GND(-)
Measurem ent Scale: CH1: 20V/div / CH2: 20V/div 10m s
Measurement Condition: Approximately 2000rpm
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