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Honda Fit/Jazz - CVT System Description - Electronic Controls (L12A/L13A CVT)

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CVT System Description - Electronic Controls

Electronic Control System


PCM Electrical Connections-6-position CVT

Electronic Control System (cont'd)


PCM Electrical Connections-6-position CVT +7 Speed Mode

PCM Inputs and Outputs


PCM CONNECTOR A (31P)
Terminal NumberWire ColorSignalDescriptionMeasuring Conditions/Terminal Voltage
A2YEL/BLKIGP2Power supply circuit from main relayWith ignition switch ON (II): Battery voltage
With ignition switch OFF: 0 V
A3YEL/BLKIGP1Power supply circuit from main relayWith ignition switch ON (II): Battery voltage
With ignition switch OFF: 0 V
A4BRNPG2Ground
A5BLKPG1Ground
A10GRN/BLKSG2Sensor ground
A11GRN/WHTSG1Sensor ground
A18BLU/WHTVABSVehicle speed sensor signal inputWith ignition switch ON (II): About 5 V
With ignition switch OFF: 0 V
A20YEL/BLUVCC2Power supply circuit for sensorsWith ignition switch ON (II): About 5 V
With ignition switch OFF: 0 V
A21YEL/REDVCC1Power supply circuit for sensorsWith ignition switch ON (II): About 5 V
With ignition switch OFF: 0 V
A23BRN/YELLG2Ground
A24BRN/YELLG1Ground



PCM CONNECTOR B (24P)
Terminal NumberWire ColorSignalDescriptionMeasuring Conditions/Terminal Voltage
B7GRN/WHTDN LS +CVT driven pulley pressure control valve power supply positive electrodeWith ignition switch ON (II): Pulsing signal
B11RED/WHTM INDM indicator control
(6-position CVT +7 Speed Mode)		When 7-speed manual shifting mode is selected: About 6 V
In other than manual shifting mode: 0 V
B12LT GRNS INDS indicator control
(6-position CVT +7 Speed Mode)		In the S position: About 6 V
In other than the S position: 0 V
B16YELSC LS +CVT start clutch pressure control valve power supply positive electrodeWith ignition switch ON (II): Pulsing signal

Electronic Control System (cont'd)


PCM Inputs and Outputs (cont'd)


PCM CONNECTOR B (24P)
Terminal NumberWire ColorSignalDescriptionMeasuring Conditions/Terminal Voltage
B19LT GRN/REDS-DNDownshift switch signal input
(6-position CVT +7 Speed Mode)		With ignition switch ON (II):
Downshift switch pressed: 0 V
Downshift switch released: About 5 V
B20YELS-UPUpshift switch signal input
(6-position CVT +7 Speed Mode)		With ignition switch ON (II):
Upshift switch pressed: 0 V
Upshift switch released: About 5 V
B24BLU/WHTDR LS+CVT drive pulley pressure control valve power supply positive electrodeWith ignition switch ON (II): Pulsing signal



PCM CONNECTOR C (22P)
Terminal NumberWire ColorSignalDescriptionMeasuring Conditions/Terminal Voltage
C1PNK/BLKDN LS -CVT driven pulley pressure control valve power supply negative electrodeWith ignition switch ON (II): Pulsing signal
C3BRNCVT PG2Ground
C5BLKCVT PG1Ground
C6GRN/BLKSOL INHInhibitor solenoid controlWith inhibitor solenoid ON (II): Battery voltage
With inhibitor solenoid OFF: 0 V
C7RED/BLUNDRCVT drive pulley speed sensor signal inputWith ignition switch ON (II): 0 V or about 5 V
With engine at idle in the N position: About 2.5 V
C8PNK/BLUSC LS -CVT start clutch pressure control valve power supply negative electrodeWith ignition switch ON (II): Pulsing signal
C9BLU/WHTATP STransmission range switch S position inputIn the S position: 0 V
In other than the S position: About 5 V
C10WHTATP RTransmission range switch R position inputIn the R position: 0 V
In other than the R position: About 10 V
C11BLUATP LTransmission range switch L position inputIn the L position: 0 V
In other than the L position: About 10 V
C12LT GRNATP NPTransmission range switch P and N positions inputIn the P and N positions: 0 V
In other than the P and N positions: About 5 V


PCM CONNECTOR C (22P)
Terminal NumberWire ColorSignalDescriptionMeasuring Conditions/Terminal Voltage
C13YELM-SWMain switch (7 Speed Mode) signal input
(6-position CVT +7 Speed Mode)		In the 7 Speed Mode: 0 V
Released the 7 Speed Mode: About 5 V
C15WHTNDNCVT driven pulley speed sensor signal inputWith ignition switch ON (II): 0 V or about 5 V
With engine at idle in the N position: About 2.5 V
C16GRN/YELDR LS -CVT drive pulley pressure control valve power supply negative electrodeWith ignition switch ON (II): Pulsing signal
C20PNKATP DTransmission range switch D position inputIn the D position: 0 V
In other than the D position: About 5 V
C22WHT/REDVEL1CVT speed sensor signal inputWith ignition switch ON (II): 0 V or about 5 V
With driving (front wheels rotating): About 2.5 V



PCM CONNECTOR E (31P)
Terminal NumberWire ColorSignalDescriptionMeasuring Conditions/Terminal Voltage
E8BLU/WHTLED AShift indicator control
(6-position CVT +7 Speed Mode)		With ignition switch ON (II) and not in the 7 Speed Mode: About 5 V
In the 7 Speed Mode
  • 4th, 5th, 6th speed: About 5 V
  • 1st, 2nd, 3rd, 7th speed: About 0.3 V
E9YEL/BLK (KE,KG,KR models)IG 1Power supply circuitWith ignition switch ON (II): Battery voltage With ignition switch OFF: 0 V
BLK/YEL (KK,KQ,KT,KU models)
E11PNKD INDD indicator controlWhen ignition switch is first turned ON (II): About 6 V for 2 seconds
In the D position: About 6 V
E13BLU/REDSLCShift lock controlWith ignition switch ON (II), in the P position brake pedal pressed, and accelerator pedal released: Battery voltage
E20GRN/BLKLED CShift indicator control
(6-position CVT +7 Speed Mode)		With ignition switch ON (II) and not in the 7 Speed Mode: About 5 V
In the 7 Speed Mode
  • 1st, 3rd, 5th speed: About 5 V
  • 2nd, 4th, 6th, 7th speed: About 0.3 V
E21RED/WHTLED BShift indicator control
(6-position CVT +7 Speed Mode)		With ignition switch ON (II) and not in the 7 Speed Mode: About 5 V
In the 7 Speed Mode
  • 2nd, 3rd, 6th speed: About 5 V
  • 1st, 4th, 5th, 7th speed: About 0.3 V
E22WHT/BLKBK SWBrake pedal position switch signal inputBrake pedal pressed: Battery voltage
Brake pedal released: 0 V
E23RED/WHTK-LINECommunication line PCM-to-DLCWith ignition switch ON (II): Battery voltage
E29BRNSCSSCS terminal signal inputWith ignition switch ON (II)
  • SCS terminals open: About 5 V
  • SCS terminals short-circuited to ground: 0 V

Circuit Diagram-6-position CVT


Circuit Diagram-6-position CVT +7 Speed Mode


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