Honda Fit manuals

Honda Fit: Fuel and Emissions System Description - Electronic Control System

Second generation (2007-2020) / Honda Fit 2007-2020 Repair Manual / Powertrain / Engine / Emissions / General / Fuel and Emissions System Description - Electronic Control System

Electronic Control Systems

The functions of the fuel and emission control systems are managed by the engine control module (ECM) on vehicles with manual transmissions or the powertrain control module (PCM) on vehicles with automatic transmissions.

Self-diagnosis

The ECM/PCM detects the failure of a signal from a sensor or from another control unit and stores a Pending DTC or a Confirmed DTC. Depending on the failure, a Confirmed DTC is stored in either the first or the second drive cycle. When a Confirmed DTC is stored, the ECM/PCM turns on the malfunction indicator lamp (MIL) by a signal sent to the gauge control module via F-CAN.

  • One Drive Cycle Detection Method

    When an abnormality occurs in the signal from a sensor or from another control unit, the ECM/PCM stores a Confirmed DTC for the failure and turns on the MIL immediately.

  • Two Drive Cycle Detection Method

    When an abnormality occurs in the signal from a sensor or from another control unit in the first drive cycle, the ECM/PCM   stores a Pending DTC. The MIL does not come on at this time. If the failure continues in the second drive cycle, the ECM/PCM stores a Confirmed DTC and turns on the MIL.

Fail-safe Function

When an abnormality occurs in the signal from a sensor or from another control unit, the ECM/PCM ignores that signal and substitutes a pre-programmed value for it them that allows the engine to continue running. This causes a DTC to be stored and the MIL to come on.

MIL Bulb Check and Readiness Code Condition

When the ignition switch is turned to ON (II), the ECM/PCM turns on the MIL via the F-CAN circuit for about 15 to 20 seconds   to check the bulb condition. If any readiness codes are not set to complete, the MIL flashes five times. If all readiness codes are set to complete, the MIL goes off.

Self Shut Down (SSD) Mode

After the ignition switch is turned to ACCESSORY (I) or to LOCK (0), the ECM/PCM stays on for up to an hour. If an ECM/PCM connector is disconnected during this time, the ECM/PCM may be damaged. To cancel this mode, disconnect the negative cable from the battery, or jump the SCS line with the HDS after the ignition switch is turned to ACCESSORY (I) or LOCK (0).


ECM/PCM   Inputs and Outputs at ECM/PCM Connector A (49P)

Terminal number

Wire color

Terminal name

Description

Signal

1*1

BRN

VBSOL (POWER SOURCE FOR SOLENOID VALVES)

Power source for solenoid valves

With ignition switch ON (II): battery voltage

3

WHT

F-CAN H (CAN COMMUNICATION SIGNAL HIGH)

Sends communication signal

With ignition switch ON (II): about 2.5 V (pulses)

4

RED

F-CAN L (CAN COMMUNICATION SIGNAL LOW)

Sends communication signal

With ignition switch ON (II): about 2.5 V (pulses)

6

GRN

FANC (RADIATOR FAN CONTROL)

Drives radiator fan relay or A/C condenser fan relay

With radiator fan or A/C condenser fan running: about 0 V

With radiator fan or A/C condenser fan stopped: battery voltage

7

BLU

MRLY (PGM-FI MAIN RELAY 1)

Drives PGM-FI main relay 1

With ignition switch ON (II): about 0 V

With ignition switch in LOCK (0): battery voltage

9

LT GRN

IGP (POWER SOURCE)

Power source for ECM/PCM circuit

With ignition switch ON (II): battery voltage

10

YEL

SG6 (SENSOR GROUND)

Sensor ground

Less than 0.2 V at all times

11

RED

VSV (EVAPORATIVE EMISSION (EVAP) CANISTER VENT SHUT VALVE)

Drives EVAP canister vent shut valve

With ignition switch ON (II): battery voltage

15

PNK

ACC (A/C COMPRESSOR CLUTCH RELAY)

Drives A/C compressor clutch relay

With compressor ON: about 0 V

With compressor OFF: battery voltage

16

BRN

IMOFPR (IMMOBILIZER FUEL PUMP RELAY)

Drives PGM-FI main relay 2

About 0 V for 2 seconds after turning ignition switch ON (II), then battery voltage

With the engine running: about 0 V

18

ORN

APSA (ACCELERATOR PEDAL POSITION (APP) SENSOR A)

Detects APP sensor A signal

With ignition switch ON (II) and accelerator pedal pressed: about 4.5 V

With ignition switch ON (II) and accelerator pedal released: about 1.0 V

19

LT BLU

APSB (ACCELERATOR PEDAL POSITION (APP) SENSOR B)

Detects APP sensor B signal

With ignition switch ON (II) and accelerator pedal pressed: about 2.3 V

With ignition switch ON (II) and accelerator pedal released: about 0.5 V

20

WHT

VCC6 (SENSOR VOLTAGE)

Provides sensor reference voltage

With ignition switch ON (II): about 5.0 V

21

RED

ETCSRLY (ELECTRONIC THROTTLE CONTROL SYSTEM (ETCS) CONTROL RELAY)

Drives electronic throttle control system (ETCS) control relay

With ignition switch ON (II): about 0 V

22

ORN

SUBRLY (PGM-FI SUBRELAY)

Drives A/F sensor relay

With ignition switch ON (II): about 0 V

24

PNK

ELD (ELECTRICAL LOAD DETECTOR (ELD))

Detects ELD signal

With ignition switch ON (II): about 0.1пјЌ4.8 V (depending on electrical load)

*1:

A/T

ECM/PCM   Inputs and Outputs at ECM/PCM Connector A (49P)

Terminal number

Wire color

Terminal name

Description

Signal

25

GRY

VCC5 (SENSOR VOLTAGE)

Provides sensor reference voltage

With ignition switch ON (II): about 5.0 V

26

BRN

VCC4 (SENSOR VOLTAGE)

Provides sensor reference voltage

With ignition switch ON (II): about 5.0 V

27

LT GRN

FTP (FUEL TANK PRESSURE (FTP) SENSOR)

Detects FTP sensor signal

With ignition switch ON (II): about 2.5 V

28*1

PNK

SLS (SHIFT LOCK SOLENOID)

Drives shift lock solenoid

With ignition switch ON (II), in P, brake pedal pressed, and accelerator released: about 0 V

29

LT BLU

NEP (ENGINE SPEED PULSE)

Outputs engine speed pulse

With engine running: pulses

30

BLU

VSP (VEHICLE SPEED SIGNAL OUTPUT)

Sends vehicle speed sensor signal

Depending on vehicle speed: pulses

32

YEL

SCS (SERVICE CHECK SIGNAL)

Detects service check signal

With service check signal shorted using the HDS: about 0 V

With service check signal opened: about 5.0 V

34

LT GRN

ECT2 (ENGINE COOLANT TEMPERATURE (ECT) SENSOR 2)

Detects ECT sensor 2 signal

With ignition switch ON (II): about 0.1пјЌ4.8 V (depending on engine coolant temperature)

35

WHT

SG5 (SENSOR GROUND)

Sensor ground

Less than 0.2 V at all times

36

BLU

SG4 (SENSOR GROUND)

Sensor ground

Less than 0.2 V at all times

38

ORN

TAC (EVAPORATOR TEMPERATURE SENSOR)

Detects evaporator sensor signal

With ignition switch ON (II): about 0.1пјЌ4.8 V (depending on evaporator temperature)

41*2

BRN

BKSWNC (BRAKE PEDAL POSITION SWITCH)

Detects brake pedal position switch signal

With ignition switch ON (II) and brake pedal released: battery voltage

With ignition switch ON (II) and brake pedal pressed: about 0 V

42

LT GRN

BKSW (BRAKE PEDAL POSITION SWITCH)

Detects brake pedal position switch signal

With brake pedal released: about 0 V

With brake pedal pressed: battery voltage

*1:

A/T

*2:

With cruise control

ECM/PCM   Inputs and Outputs at ECM/PCM Connector A (49P)

 

Terminal number

Wire color

Terminal name

Description

Signal

43*3

PUR

CRMTCLS (CRUISE CLUTCH PEDAL POSITION SIGNAL)

Detects cruise clutch pedal position switch signal

With ignition switch ON (II) and clutch pedal released: about 0 V

With ignition switch ON (II) and clutch pedal pressed: battery voltage

44*9

RED

WEN (WRITE ENABLE SIGNAL)

Detects write enable signal

With ignition switch ON (II): about 0 V

46

GRN

S-NET5V (SERIAL COMMUNICATION FOR IMMOBILIZER)

Sends serial communication signal

With ignition switch ON (II): pulses

With key removed from ignition switch: about
0пјЌ5.0 V

47*4

YEL

SUPP (PADDLE SHIFTERпј‹   UPSHIFT SWITCH)

Detects paddle shifterпј‹ (upshift switch) signal

With ignition switch ON (II):

  • With paddle shifterпј‹ (upshift switch) pressed: about 0 V

  • With paddle shifterпј‹ (upshift switch) released: battery voltage

48*4

LT BLU

SDNP (PADDLE SHIFTERпјЌ   DOWNSHIFT SWITCH)

Detects paddle shifterпјЌ (downshift switch) signal

With ignition switch ON (II):

  • With paddle shifterпјЌ (downshift switch) pressed: about 0 V

  • With paddle shifterпјЌ (downshift switch) released: battery voltage

*3:

M/T with cruise control

*4:

A/T (with paddle shifter)

*9:

09-10 models


ECM/PCM   Inputs and Outputs at ECM/PCM Connector B (49P)

Terminal number

Wire color

Terminal name

Description

Signal

1

BRN*6
BLK*7

PG2 (POWER GROUND)

Ground circuit for ECM/PCM circuit

Less than 0.2 V at all times

2

BLU/RED*6
LT BLU*7

EGR (EXHAUST GAS RECIRCULATION (EGR) VALVE)

Drives EGR valve

With EGR operating: duty controlled

With EGR not operating: about 0 V

3

YEL/BLU*6
RED*7

PCS (EVAPORATIVE EMISSION (EVAP) CANISTER PURGE VALVE)

Drives EVAP canister purge valve

With engine running, engine coolant below 140 В°F   (60 В°C): battery voltage

With engine running, engine coolant above 140 В°F   (60 В°C): duty controlled

4

BLK/WHT*6
GRN*7

SO2SHTC (SECONDARY HEATED OXYGEN SENSOR (SECONDARY HO2S) HEATER (SENSOR 2))

Drives secondary HO2S   heater (sensor 2)

With ignition switch ON (II): battery voltage

With warmed up engine running: duty controlled

7

YEL/RED*6
TAN*7

OPSW (OIL PRESSURE SWITCH)

Detects engine oil pressure signal

With ignition switch in LOCK (0): about 0 V

With engine running: battery voltage

8*1

BLU/RED*6
BLU*7

OP2SW (TRANSMISSION FLUID PRESSURE SWITCH A (2ND CLUTCH))

Detects transmission fluid pressure switch A (2nd clutch) input signal

With ignition switch ON (II):

  • Without 2nd clutch pressure: about 5.0 V

  • With 2nd clutch pressure: about 0 V

9*1

BLU/WHT*6
PNK*7

OP3SW (TRANSMISSION FLUID PRESSURE SWITCH B (3RD CLUTCH))

Detects transmission fluid pressure switch B (3rd clutch) input signal

With ignition switch ON (II):

  • Without 3rd clutch pressure: about 5.0 V

  • With 3rd clutch pressure: about 0 V

10

BLK

PG1 (POWER GROUND)

Ground circuit for ECM/PCM circuit

Less than 0.2 V at all times

11*1

BLU/BLK*6
LT GRN*7

SHA (SHIFT SOLENOID VALVE A)

Drives shift solenoid valve A

With engine running in D (in 2nd and 4th gears), S (in 2nd and 4th gears), D3 (in 2nd gear), and 2: battery voltage

With engine running in P, R, N, 1, D (in 1st, 3rd, and 5th gears), S (in 1st, 3rd, and 5th   gears), and D3 (in 1st and 3rd gears): about 0 V

12*1

GRN/RED*6
RED*7

SHD (SHIFT SOLENOID VALVE D)

Drives shift solenoid valve D

With engine running in P and R: battery voltage

With engine running in N: about 0 V

13*1

RED/BLK*6
WHT*7

ATPN (TRANSMISSION RANGE SWITCH IN N)

Detects transmission range switch N position input signal

With ignition switch ON (ll) in N: about 0 V

With ignition switch ON (ll) in any position other than N: battery voltage

14*1

BLU/BLK*6
GRN*7

ATPP (TRANSMISSION RANGE SWITCH IN P)

Detects transmission range switch P position input signal

With ignition switch ON (ll) in P: about 0 V

With ignition switch ON (ll) in any position other than P: battery voltage

15*1

WHT*6
PUR*7

ATPR (TRANSMISSION RANGE SWITCH IN R)

Detects transmission range switch R position input signal

With ignition switch ON (ll) in R: about 0 V

With ignition switch ON (ll) in any position other than R: battery voltage

*1:

A/T

*6:

9-10 models and 11-13 models (M/T)

*7:

11-13 models (A/T)


ECM/PCM   Inputs and Outputs at ECM/PCM Connector B (49P)

Terminal number

Wire color

Terminal name

Description

Signal

16*5

RED*6
LT BLU*7

ATPD3 (TRANSMISSION RANGE SWITCH IN D3)

Detects transmission range switch D3 position input signal

With ignition switch ON (ll) in D3: about 0 V

With ignition switch ON (ll) in any position other than D3: battery voltage

16*4

RED*6
LT BLU*7

ATPS (TRANSMISSION RANGE SWITCH IN S)

Detects transmission range switch S position input signal

With ignition switch ON (ll) in S: about 0 V

With ignition switch ON (ll) in any position other than S: battery voltage

17*5

BLU

ATP2-1 (TRANSMISSION RANGE SWITCH 2-1)

Detects transmission range switch 2 and 1 position input signal

With ignition switch ON (ll) in 2 and 1: about 0 V

With ignition switch ON (ll) in any position other than 2 and 1: battery voltage

18*1

WHT/RED*6
RED*7

NM (INPUT SHAFT (MAINSHAFT) SPEED SENSOR)

Detects input shaft (mainshaft) speed sensor signal

With ignition switch ON (II): about 0 V or about 5.0 V

With engine running in N: pulses

19

YEL/BLU*6
TAN*7

VCC2 (SENSOR VOLTAGE)

Provides sensor voltage

With ignition switch ON (II): about 5.0 V

21*1

GRN*6
BLU*7

SHC (SHIFT SOLENOID VALVE C)

Drives shift solenoid valve C

With engine running in R, D (in 3rd and 4th gears), S (in 3rd and 4th gears), and D3 (in 3rd gear): battery voltage

With engine running in P, N, 2, 1, D (in 1st, 2nd, and 5th gears), S (in 1st, 2nd, and 5th gears), and D3 (in 1st and 2nd gears): about 0 V

22*1

PNK

ATPD (TRANSMISSION RANGE SWITCH IN D)

Detects transmission range switch D position input signal

With ignition switch ON (ll) in D: about 0 V

With ignition switch ON (ll) in any position other than D: battery voltage

23*1

YEL

ATPRVS (TRANSMISSION RANGE SWITCH IN RVS)

Detects transmission range switch R position input signal

With ignition switch ON (ll) in R: about 0 V

With ignition switch ON (ll) in any position other than R: battery voltage

24

RED/WHT*6
PNK*7

ECT1 (ENGINE COOLANT TEMPERATURE (ECT) SENSOR 1)

Detects ECT sensor 1 signal

With ignition switch ON (II): about 0.1пјЌ4.8 V (depending on engine coolant temperature)

26*1

BLU/YEL*6
RED*7

LSC (A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE C)

Drives A/T clutch pressure control solenoid valve C

With ignition switch ON (II): duty controlled

27*1

GRN/WHT*6
PUR*7

SHB (SHIFT SOLENOID VALVE B)

Drives shift solenoid valve B

With engine running in R, 1, D (in 1st, 4th, and 5th gears), S (in 1st, 4th, and 5th gears), and D3 (in 1st gear): battery voltage
With engine running in P, N, 2, D (in 2nd and 3rd gears), S (in 2nd and 3rd gears), and D3 (in 2nd and 3rd gears): about 0 V

28*1

RED/YEL*6
   WHT*7

TATF (ATF TEMPERATURE SENSOR)

Detects ATF temperature signal

With ignition switch ON (II): about 0.2пјЌ4.0 V (depending on ATF temperature)

*1:

A/T

*4:

A/T (with paddle shifter)

*5:

A/T (without paddle shifter)

*6:

09-10 models and 11-13 models (M/T)

*7:

11-13 models (A/T)

ECM/PCM   Inputs and Outputs at ECM/PCM Connector B (49P)

Terminal number

Wire color

Terminal name

Description

Signal

29*1

BLU/YEL*6
TAN*7

ATPFWD (TRANSMISSION RANGE SWITCH IN FWD)

Detects transmission range switch D, D3, 2, and S position input signals

With ignition switch ON (ll) in D, D3, 2, and S: about 0 V

With ignition switch ON (ll) in any position other than D, D3, 2, and S: battery voltage

30

WHT/BLK*6
PUR*7

EGRP (EXHAUST GAS RECIRCULATION (EGR) VALVE POSITION SENSOR)

Detects EGR valve position sensor signal

With engine running: about 1.2пјЌ3.5 V (depending on EGR valve)

31

RED/GRN*6
GRN*7

VGпј‹ (MASS AIR FLOW (MAF) SENSOR пј‹SIDE)

Detects MAF sensor signal

At idle with warmed up engine and no electrical load: about 1.7 V

32

RED/YEL*6
TAN*7

IAT (INTAKE AIR TEMPERATURE (IAT) SENSOR)

Detects IAT sensor signal

With ignition switch ON (II): about 0.1пјЌ4.0 V

33

BLK/RED*6
PUR*7

VGпјЌ (MASS AIR FLOW (MAF) SENSOR пјЌSIDE)

Ground for MAF sensor signal

Less than 0.2 V at all times

34

GRN/YEL*6
GRY*7

SG2 (SENSOR GROUND)

Sensor ground

Less than 0.2 V at all times

35

GRN/YEL*6
LT GRN*7

VTS (ROCKER ARM OIL CONTROL SOLENOID)

Drives rocker arm oil control solenoid

At idle: about 0 V

36

WHT/RED*9
PNK*8

SHO2S (SECONDARY HEATED OXYGEN SENSOR (SECONDARY HO2S) SENSOR 2)

Detects secondary HO2S   (sensor 2) signal

With throttle fully opened at idle, and warmed up engine: above 0.6 V

With throttle quickly closed: below 0.4 V

37*8

BLU

SHO2SG (SECONDARY HEATED OXYGEN SENSOR (SECONDARY HO2S) SENSOR 2 GROUND)

Ground for secondary HO2S (sensor 2)

Less than 0.2 V at all times

38

BLK/WHT*6
LT BLU*7

NC (OUTPUT SHAFT (COUNTERSHAFT) SPEED SENSOR)

Detects output shaft (countershaft) speed sensor signal

With ignition switch ON (II): about 0 V or about 5.0 V

Driving: pulses

40*1

RED/BLK*6
LT BLU*7

LSA (A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE A)

Drives A/T clutch pressure control solenoid valve A

With ignition switch ON (II): duty controlled

45

WHT/GRN*6
GRN*7

ALTC (ALTERNATOR CONTROL)

Sends alternator control signal

With warmed up engine running: about 5.0 V(depending on electrical load)

46

WHT/BLU*6
LT BLU*7

ALTL (ALTERNATOR L SIGNAL)

Detects alternator L signal

With ignition switch ON (II): about 0 V

With engine running: battery voltage

47

WHT/RED*6
RED*7

ALTF (ALTERNATOR FR SIGNAL)

Detects alternator FR signal

With engine running: about 2.6пјЌ3.7 V (depending on electrical load)

48*1

BRN/WHT*6
YEL*7

LSB (A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE B)

Drives A/T clutch pressure control solenoid valve B

With ignition switch ON (II): duty controlled

*1:

A/T

*6:

09-10 models and 11-13 models (M/T)

*7:

11-13 models (A/T)

*8:

11-13 models

*9:

09-10 models

ECM/PCM   Inputs and Outputs at ECM/PCM Connector C (49P)

Terminal number

Wire color

Terminal name

Description

Signal

1

WHT*6
PNK*7

IG1ETCS (IGNITION SIGNAL ETCS)

Detects ignition signal

With ignition switch ON (II): battery voltage

2

BRN*6
BLK*7

PGMETCS (POWER GROUND ETCS)

Ground circuit for ECM/PCM circuit

Less than 0.2 V at all times

3

YEL

ETCSMпјЌ (THROTTLE ACTUATOR пјЌSIDE)

Ground for throttle actuator

With ignition switch ON (II) and accelerator pedal released: about 0 V

With ignition switch ON (II) and accelerator pedal pressed: about 1.8 V

4

YEL/RED*6
TAN*7

ETCSMпј‹ (THROTTLE ACTUATOR пј‹SIDE)

Drives throttle actuator

About 1.5 V immediately after turning ignition switch ON (II), then about 0 V

5

BRN*6
LT GRN*7

INJ1 (No. 1 INJECTOR)

Drives No. 1 injector

At idle: duty controlled

With ignition switch ON (II): battery voltage

6

RED*6
TAN*7

INJ2 (No. 2 INJECTOR)

Drives No. 2 injector

7

BLU

INJ3 (No. 3 INJECTOR)

Drives No. 3 injector

8

YEL*6
RED*7

INJ4 (No. 4 INJECTOR)

Drives No. 4 injector

9

GRN

AFSHTC (AIR FUEL RATIO (A/F) SENSOR HEATER CONTROL (SENSOR 1))

Drives A/F sensor heater (sensor 1)

With ignition switch ON (II): battery voltage

With warmed up engine running: duty controlled

10

BLK/RED*6
TAN*7

IG1 (IGNITION SIGNAL)

Detects ignition signal

With ignition switch ON (II): battery voltage

11

GRN/RED*6
PUR*7

MAP (MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR)

Detects MAP sensor signal

With ignition switch ON (II): about 3.0 V

At idle: about 1.0 V (depending on engine speed)

12

BLU*6
WHT*7

VCC3 (SENSOR VOLTAGE)

Provides sensor reference voltage

With ignition switch ON (II): about 5.0 V

13

YEL/RED*6
PNK*7

VCC1 (SENSOR VOLTAGE)

Provides sensor reference voltage

With ignition switch ON (II): about 5.0 V

14

GRN/WHT*6
BLU*7

SG1 (SENSOR GROUND)

Sensor ground

Less than 0.2 V at all times

15

WHT

IGPLS1 (No. 1 IGNITION COIL PULSE)

Drives No. 1 ignition coil

With ignition switch ON (II): about 0 V

With engine running: pulses

16

WHT/GRN*6
GRN*7

IGPLS2 (No. 2 IGNITION COIL PULSE)

Drives No. 2 ignition coil

17

WHT/BLK*6
TAN*7

IGPLS3 (No. 3 IGNITION COIL PULSE)

Drives No. 3 ignition coil

18

WHT/BLU*6
LT BLU*7

IGPLS4 (No. 4 IGNITION COIL PULSE)

Drives No. 4 ignition coil

*6:

09-10 models and 11-13 models (M/T)

*7:

11-13 models (A/T)

ECM/PCM   Inputs and Outputs at ECM/PCM Connector C (49P)

Terminal number

Wire color

Terminal name

Description

Signal

20

RED/BLK*6
PUR*7

TPSA (THROTTLE POSITION (TP) SENSOR A)

Detects TP sensor A signal

With ignition switch ON (II) and accelerator pedal released: about 0.8 V
With ignition switch ON (II) and accelerator pedal pressed: about 3.9 V

21

RED

TPSB (THROTTLE POSITION (TP) SENSOR B)

Detects TP sensor B signal

With ignition switch ON (II) and accelerator pedal released: about 1.7 V
With ignition switch ON (II) and accelerator pedal pressed: about 4.1 V

22

BLU/BLK*6
BLU*7

VTPSW (ROCKER ARM OIL PRESSURE SWITCH)

Detects rocker arm oil pressure switch signal

At idle: about 0 V

29

RED*6
PNK*7

AFSпј‹ (AIR FUEL RATIO (A/F)   SENSOR (SENSOR 1) пј‹SIDE)

Detects A/F sensor (sensor 1)   signal

At idle: about 2.2 V

30

RED/YEL*6
TAN*7

AFSпјЌ (AIR FUEL RATIO (A/F)   SENSOR (SENSOR 1) пјЌSIDE)

Detects A/F sensor (sensor 1)   signal

At idle: about 1.8 V

31

GRN

CMP (CAMSHAFT POSITION (CMP) SENSOR)

Detects CMP sensor signal

With engine running: pulses

32

BLU

CKP (CRANKSHAFT POSITION (CKP) SENSOR)

Detects CKP sensor signal

With engine running: pulses

43

GRN*6
BLU*7

SG3 (SENSOR GROUND)

Sensor ground

Less than 0.2 V at all times

44

BRN/YEL*6
BRN*7

LG1 (LOGIC GROUND)

Ground circuit for ECM/PCM circuit

Less than 0.2 V at all times

46

RED/BLU*9
WHT*8

KS (KNOCK SENSOR)

Detects knock sensor signal

With engine knocking: pulses

48

BRN/YEL*6
BRN*7

LG2 (LOGIC GROUND)

Ground circuit for ECM/PCM circuit

Less than 0.2 V at all times

*6:

09-10 models and 11-13 models (M/T)

*7:

11-13 models (A/T)

*8:

11-13 models

*9:

09-10 models

ECM/PCM   Electrical Connections

ECM/PCM Electrical Connections (cont'd)

ECM/PCM Electrical Connections (cont'd)

ECM/PCM Circuit Diagram

ECM/PCM Circuit Diagram (cont'd)

ECM/PCM Circuit Diagram (cont'd)

ECM/PCM Circuit Diagram (cont'd)

ECM/PCM Circuit Diagram (cont'd)

ECM/PCM Circuit Diagram (cont'd)

ECM/PCM Circuit Diagram (cont'd)

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