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Honda Fit/Jazz - Fuel and Emissions System Description - Supplement (CVT-KG/KE/KR/KK/KT)

Fuel and Emissions System Description - Supplement

PCM Inputs and Outputs at Connector A (31P)

NOTE: Standard battery voltage is 12 V.

Terminal numberWire colorTerminal nameDescriptionSignal
1BLK/WHTPO2SHTC (PRIMARY HEATED OXYGEN SENSOR (PRIMARY HO2S) HEATER CONTROL)Drives primary HO2S heaterWith ignition switch ON (II): battery voltage
With fully warmed up engine running: duty controlled
2YEL/BLKIGP2 (POWER SOURCE)Power source for the PCM circuitWith the ignition switch ON (II): battery voltage
With the ignition switch OFF: about 0 V
3YEL/BLKIGP1 (POWER SOURCE)Power source for the PCM circuitWith the ignition switch ON (II): battery voltage
With the ignition switch OFF: about 0 V
4BLKPG2 (POWER GROUND)Ground for the PCM circuitLess than 0.1 V at all times
5BLKPG1 (POWER GROUND)Ground for the PCM circuitLess than 0.1 V at all times
6WHTPHO2S (PRIMARY HEATED OXYGEN SENSOR (PRIMARY HO2S) SENSOR 1)Detects primary HO2S sensor (sensor 1) signalWith throttle fully opened from idle with fully warmed up engine: about 0.6 V
With throttle quickly closed: below 0.4 V
7BLUCKP (CRANKSHAFT POSITION SENSOR)Detects CKP sensor signalWith engine running: pulses
9RED/BLUKS (KNOCK SENSOR)Detects knock sensor signalWith engine knocking: pulses
With ignition switch ON (II): about 0 V
10GRN/BLKSG2 (SENSOR GROUND)Sensor groundLess than 0.1 V at all times
11GRN/WHTSG1 (SENSOR GROUND)Sensor groundLess than 0.1 V at all times
12BLK/BLUIACV (IDLE AIR CONTROL (IAC) VALVE)Drives IAC valveWith engine running: duty controlled
13WHT/BLKEGRP (EXHAUST GAS RECIRCULATION (EGR) VALVE POSITION SENSOR)Detects EGR valve position sensor signalWith engine running: 1.2 V-2.0 V (depending on EGR valve lift)
15RED/BLKTPS (THROTTLE POSITION (TP) SENSOR)Detects TP sensor signalWith throttle fully open: about 4.8 V
With throttle fully closed: about 0.5 V

Terminal numberWire colorTerminal nameDescriptionSignal
16WHT/BLKIGPLS3E (No. 3 REAR IGNITION COIL PULSE)Drives No. 3 rear ignition coilWith ignition switch ON (II): about 0 V
With engine running: pulses
18BLU/WHTVABS (VEHICLE SPEED SIGNAL FROM ABS)Input vehicle speed from ABS control unitDepending on vehicle speed: pulses
19RED/GRNMAP (MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR)Detects MAP sensor signalWith ignition switch ON (II): about 3 V
At idle: about 1.0 V (depending on engine speed)
20YEL/BLUVCC2 (SENSOR VOLTAGE)Provides sensor voltageWith ignition switch ON (II): about 5 V
With ignition switch OFF: about 0 V
21YEL/REDVCC1 (SENSOR VOLTAGE)Provides sensor voltageWith ignition switch ON (II): about 5 V
With ignition switch OFF: about 0 V
23BRN/BLKLG2 (LOGIC GROUND)Ground for the PCM circuitLess than 0.1 V at all times
24BRN/BLKLG1 (LOGIC GROUND)Ground for the PCM circuitLess than 0.1 V at all times
26GRNTDC (TOP DEAD CENTER (TDC) SENSOR)Detects DTC sensorWith engine running: pulses
27WHT/BLUIGPLS4I (No. 4 FRONT IGNITION COIL PULSE)Drives No. 4 front ignition coilWith ignition switch ON (II): about 0 V
With engine running: pulses
28WHT/BLKIGPLS3I (No. 3 FRONT IGNITION COIL PULSE)Drives No. 3 front ignition coil
29WHT/GRNIGPLS2I (No. 2 FRONT IGNITION COIL PULSE)Drives No. 2 front ignition coil
30WHTIGPLS1I (No. 1 FRONT IGNITION COIL PULSE)Drives No. 1 front ignition coil

PCM Inputs and Outputs at Connector B (24P)

NOTE: Standard battery voltage is 12 V.

Terminal numberWire colorTerminal nameDescriptionSignal
1WHTIGPLS1E (No. 1 REAR IGNITION COIL PULSE)Drives No. 1 rear ignition coilWith ignition switch ON (II): about 0 V
With engine running: pulses
2YELINJ4 (No. 4 INJECTOR)Drives No. 4 injectorWith ignition switch ON (II): battery voltage
At idle: duty controlled
3BLUINJ3 (No. 3 INJECTOR)Drives No. 3 injector
4REDINJ2 (No. 2 INJECTOR)Drives No. 2 injector
5BRNINJ1 (No. 1 INJECTOR)Drives No. 1 injector
6GRNFANC (RADIATOR FAN CONTROL)Drives radiator fan relayWith radiator fan running: about 0 V
With radiator fan stopped: battery voltage
7GRN/WHTHLCLS+ (CVT DRIVEN PULLEY CONTROL VALUE+ SIDE)Drives CVT driven pulley control valueWith ignition switch ON (II): pulsing signal
8RED/WHTECT (ENGINE COOLANT TEMPERATURE SENSOR)Detects ECT sensor signalWith the ignition switch ON (II): about 0.1-4.8 V
(depending on engine coolant temperature)
10WHT/GRNIGPLS2E (No. 2 REAR IGNITION COIL PULSEDrives No. 2 rear ignition coilWith ignition switch ON (II): about 0 V
With engine running: pulses
11*1RED/WHTM IND (M INDICATOR)Drives M indicator light.With M indicator light turned ON : about 6 V
With M indicator light turned OFF : 0 V voltage
12*1LT GRNS IND (S INDICATOR)Drives S indicator light.With S indicator light turned ON : about 6 V
With S indicator light turned OFF : 0 V voltage
13WHT/REDALTF (ALTERNATOR FR SIGNAL)Detects alternator FR signalWith engine running:about 0 V-5 V
(depending on electrical load)
14PNKEGR (EXHAUST GAS RECIRCULATION (EGR) VALVE)Drives EGR valveWith EGR operating: duty controlled
With EGR not operating: about 0 V
16YELSCLS+ (CVT START CLUTCH PRESSURE CONTROL VALVE + SIDEDrives CVT start clutch pressure control valveWith ignition switch ON (II): pulsing signal
17RED/YELIAT (INTAKE AIR TEMPERATURE SENSOR)Detects IAT sensor signalWith ignition switch ON (II): about 0.1 V-4.8 V
(depending on intake air temperature)
18WHT/GRNALTC (ALTERNATOR CONTROL)Sends alternator control signalWith engine running: about 0 V-5 V
(depending on electrical load)
19*1LT GRN/REDS-DN (DOWN SHIFT SWITCH)Detects downshift switch signalSteering shift switch pushed toward downshift position (marked with -): 0 V
Steering shift switch in neutral position : about 5 V
20*1YELS-UP (UP SHIFT SWITCH)Detects upshift switch signalSteering shift switch pushed toward upshift position (marked with +): 0 V
Steering shift switch in neutral position : about 5 V
21RED/YELPCS (EVAPORATIVE EMISSION (EVAP) CANISTER PURGE VALVE)Drives EVAP canister purge valveWith engine running, engine coolant below 70°C (158°F): about 0 V
With engine running, engine coolant above 70°C (158°F): duty controlled
22WHT/BLUIGPLS4E (No. 4 REAR IGNITION COIL PULSEDrives No. 4 rear ignition coilWith ignition switch ON (II): about 0 V
With engine running: pulses
24BLU/WHTSHLS+ (CVT DRIVE PULLEY CONTROL VALVE + SIDE)Drives CVT drive pulley control valveWith ignition switch ON (II): duty controlled

*1: HONDA CVT +7SPEED MODE system

PCM Inputs and Outputs at Connector C (22P)

NOTE: Standard battery voltage is 12 V.

Terminal numberWire colorTerminal nameDescriptionSignal
1PNK/BLKHLCLS - (CVT DRIVEN PULLEY CONTROL VALVE - SIDEDrives CVT driven pulley control valve
6GRN/BLKINHSOL (INHIBITOR SOLENOID CONTROL)Drives inhibitor solenoidWith inhibitor solenoid ON: battery voltage
With inhibitor solenoid OFF: 0 V
7RED/BLUNDR (CVT DRIVE PULLEY SPEED SENSOR)Detects CVT drive pulley speed sensor signalWith ignition switch ON (II): 0 V or 5 V
8PNK/BLUSCLS- (CVT START CLUTCH PRESSURE CONTROL VALVE B-SIDE)Drives CVT start clutch pressure control valve
9BLU/WHTATPS (TRANSMISSION RANGE SWITCH S POSITION)Drives transmission range switch S position signalIn S position: 0 V
In any other position: about 5 V or battery voltage
10WHTATPR (TRANSMISSION RANGE SWITCH R POSITION)Detects transmission range switch R position signalIn R position: 0 V
In any other position: about 10 V
11BLUATPL (TRANSMISSION RANGE SWITCH L POSITION)Detects transmission range switch L position signalIn L position: 0 V
In any other position: about 10 V
12LT GRNATPNP (TRANSMISSION RANGE SWITCH NEUTRAL/PARK POSITION)Detects transmission range switch Neutral/Park position signalIn Park or Neutral: 0 V
In any other position: about 10 V
13*1YELMSW (MAIN SWITCH)Detects main switch (7SPEED MODE) signalMain switch (7SPPED MODE) pushed: 0 V
Main switch (7SPPED MODE) released: about 5 V
15WHTNDN (CVT DRIVEN PULLEY SPEED SENSOR)Detects CVT driven pulley speed sensor signalWith ignition switch ON (II): 0 V or 5 V
16GRN/YELSHLS- (CVT DRIVE PULLEY CONTROL VALVE-SIDE)Drives CVT drive pulley control valveWith ignition switch ON (II): pulses
20PNKATPD (TRANSMISSION RANGE SWITCH D POSITION)Detects transmission range switch D position signalIn D position: about 0 V
In any other position: about 5 V
22WHT/REDVEL1 (CVT SPEED SENSOR)Detects CVT speed sensorDepending on vehicle speed: pulses
When vehicle is stopped: about 0 V or about 5 V

*1: HONDA CVT +7SPEED MODE system

PCM Inputs and Outputs at Connector E (31P)

NOTE: Standard battery voltage is 12 V.

Terminal numberWire colorTerminal nameDescriptionSignal
1GRN/YELIMO FPR (IMMOBILIZER FUEL PUMP RELAY)Drives PGM-FI main relay 20 V for 2 seconds after turning ignition switch ON (II), then battery voltage
2*2WHT/REDSHO2S (SECONDARY HEATED OXYGEN SENSOR (SECONDARY HO2S), SENSOR 2)Detects secondary HO2S (sensor 2) signalWith throttle fully opened from idle with fully warmed up engine: above 0.6 V
With throttle quickly closed: below 0.4 V
3BRN/YELLG3 (LOGIC GROUND)Ground for the PCM control circuitLess than 0.1 V at all times
4PNKSG3 (SENSOR GROUND)Sensor groundLess than 0.1 V at all times
5GRN/WHTFUP (FUEL INJECTION SIGNAL)Sends fuel injection signal to gauge assemblyWith ignition switch ON (II): pulses
6*2BLK/WHTSO2SHTC (SECONDARY HEATED OXYGEN SENSOR (SECONDARY HO2S) HEATER CONTROL)Drives secondary HO2S heaterWith ignition switch ON (II): battery voltage
With fully warmed up engine running: duty controlled
7RED/YELMRLY(PGM-FI MAIN RELAY)Drives PGM-FI main relay 1 Power source for the DTC memoryWith ignition switch ON (II): about 0 V
With ignition switch OFF: battery voltage
8*1BLU/WHTLED ADrives shift indicatorIn 7SPEED MODE:
  • in 1st, 2nd, 3rd and 7th: about 0.3 V
  • in 4th, 5th, and 6th: about 5 V
9YEL/BLKIG1 (IGNITION SIGNAL)Detects ignition signalWith ignition switch ON (II): battery voltage
With ignition switch OFF: about 0 V
11PNKDIND (D INDICATOR)Drives D indicator lightWith D indicator light turned ON: about 6 V
With D indicator light turned OFF: 0 V
12BLUTACDetects evaporator sensor signalWith ignition switch ON (II): about 0.1-4.8 V (depending on evaporator temperature)
15GRN/REDELD (ELECTRICAL LOAD DETECTOR (ELD))Detects ELD signalWith ignition switch ON (II): about 0.1-4.8 V (depending on electrical load)

*1: HONDA CVT +7SPEED MODE system

*2: KG, KE, KR models

Terminal numberWire colorTerminal nameDescriptionSignal
18REDACC (A/C CLUTCH RELAY)Drives A/C clutch relayWith compressor ON: about 0 V
With compressor OFF: battery voltage
20*1GRN/BLKLED CDrives shift indicatorIn 7SPEED MODE:
  • in 2nd, 4th, 6th and 7th: about 0.3 V
  • in 1st, 3rd and 5th: about 5 V
21*1RED/WHTLED BDrives shift indicatorIn 7SPEED MODE:
  • in 1st, 4th, 5th and 7th: about 0.3 V
  • in 2nd, 3rd and 6th: about 5 V
22WHT/BLKBKSW (BRAKE PEDAL POSITION SWITCH)Detects brake pedal position switch signalWith brake pedal released: about 0 V
With brake pedal pressed: battery voltage
23RED/WHTK-LINESends and receives scan tool signalWith ignition switch ON (II): battery voltage
24GRNMTRTWSends engine coolant temperture signalWith ignition switch ON (II): pulse
25BLU/YELVSSOUT (VEHICLE SPEED SENSOR (VSS) OUTPUT SIGNAL)Sends vehicle speed sensor signalDepending on vehicle speed: pulses
26BLUNEP (ENGINE SPEED PULSE)Outputs engine speed pulseWith engine running: pulses
27RED/BLUIMOCD (IMMOBILIZER CODE)Detects immobilizer signal
28BLU/WHTACS (A/C SWITCH SIGNAL)Detects A/C switch signalWith A/C switch ON: 0 V
With A/C switch OFF: about 5 V
29BRNSCS (SERVICE CHECK SIGNAL)Detects service check signalWith the service check signal shorted with the PGM Tester: about 0 V
With the service check signal opened: about 5 V
31GRN/ORNMIL (MALFUNCTION INDICATOR LAMP)Drives MILWith MIL turned ON: about 0 V
With MIL turned OFF: battery voltage

*1: HONDA CVT +7SPEED MODE system

PCM Circuit Diagram

PCM Circuit Diagram (cont'd)

PCM Circuit Diagram (cont'd)

PCM Circuit Diagram (cont'd)

PCM Circuit Diagram (cont'd)

PCM Circuit Diagram (cont'd)

PCM Circuit Diagram (cont'd)

PCM Circuit Diagram (cont'd)

LHD model:

PCM Circuit Diagram (cont'd)

LHD model:

PCM Circuit Diagram (cont'd)

LHD model:

PCM Circuit Diagram (cont'd)

RHD model:

PCM Circuit Diagram (cont'd)

RHD model:

PCM Circuit Diagram (cont'd)

RHD model:

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