CVT System Description - Electronic Controls (L15A CVT)

CVT System Description - Electronic Controls

Electronic Control System

PCM Terminal Connections

 

PCM Inputs and Outputs

 

PCM CONNECTOR A (31P)

Terminal Number	Wire Color	Signal	Description	Measuring Conditions/Terminal Voltage
A2	YEL/BLK	IGP2	Power supply circuit from main relay	With ignition switch ON (II): Battery voltage With ignition switch OFF: 0 V
A3	YEL/BLK	IGP1	Power supply circuit from main relay	With ignition switch ON (II): Battery voltage With ignition switch OFF: 0 V
A4	BLK	PG2	Ground
A5	BLK	PG1	Ground
A10	GRN/BLK	SG2	Sensor ground
A11	GRN/WHT	SG1	Sensor ground
A18	BLU/WHT	VABS	Vehicle speed sensor signal input	With ignition switch ON (II): About 5 V With ignition switch OFF: 0 V
A20	YEL/BLU	VCC2	Power supply circuit for sensors	With ignition switch ON (II): About 5 V With ignition switch OFF: 0 V
A21	YEL/RED	VCC1	Power supply circuit for sensors	With ignition switch ON (II): About 5 V With ignition switch OFF: 0 V
A23	BRN/YEL	LG2	Ground
A24	BRN/YEL	LG1	Ground

PCM CONNECTOR B (24P)

Terminal Number	Wire Color	Signal	Description	Measuring Conditions/Terminal Voltage
B7	GRN/WHT	DN LS +	CVT driven pulley pressure control valve power supply positive electrode	With ignition switch ON (II): Pulsing signal
B11	RED/WHT	M IND	[M] indicator control	When 7-speed manual shifting mode is selected: About 6 V In other than manual shifting mode: 0 V
B12	LT GRN	S IND	[S] indicator control	In the [S] position: About 6 V In other than the [S] position: 0 V
B16	YEL	SC LS +	CVT start clutch pressure control valve power supply positive electrode	With ignition switch ON (II): Pulsing signal

Electronic Control System (cont'd)

PCM Inputs and Outputs (cont'd)

 

PCM CONNECTOR B (24P)

Terminal Number	Wire Color	Signal	Description	Measuring Conditions/Terminal Voltage
B19	LT GRN/RED	S-DN	Downshift switch signal input	With ignition switch ON (II): Downshift switch pressed: 0 V Downshift switch released: About 5 V
B20	YEL	S-UP	Upshift switch signal input	With ignition switch ON (II): Upshift switch pressed: 0 V Upshift switch released: About 5 V
B24	BLU/WHT	DR LS+	CVT drive pulley pressure control valve power supply positive electrode	With ignition switch ON (II): Pulsing signal

PCM CONNECTOR C (22P)

Terminal Number	Wire Color	Signal	Description	Measuring Conditions/Terminal Voltage
C1	PNK/BLK	DN LS -	CVT driven pulley pressure control valve power supply negative electrode	With ignition switch ON (II): Pulsing signal
C3	BLK	CVT PG2	Ground
C5	BLK	CVT PG1	Ground
C6	GRN/BLK	SOL INH	Inhibitor solenoid control	With inhibitor solenoid ON (II): Battery voltage With inhibitor solenoid OFF: 0 V
C7	RED/BLU	NDR	CVT drive pulley speed sensor signal input	With ignition switch ON (II): 0 V or about 5 V With engine at idle in the [N] position: About 2.5 V
C8	PNK/BLU	SC LS -	CVT start clutch pressure control valve power supply negative electrode	With ignition switch ON (II): Pulsing signal
C9	BLU/WHT	ATP S	Transmission range switch [S] position input	In the [S] position: 0 V In other than the [S] position: About 5 V
C10	WHT	ATP R	Transmission range switch [R] position input	In the [R] position: 0 V In other than the [R] position: About 10 V
C11	BLU	ATP L	Transmission range switch [L] position input	In the [L] position: 0 V In other than the [L] position: About 10 V
C12	LT GRN	ATP NP	Transmission range switch [P] and [N] positions input	In the [P] and [N] positions: 0 V In other than the [P] and [N] positions: About 5 V

PCM CONNECTOR C (22P)

Terminal Number	Wire Color	Signal	Description	Measuring Conditions/Terminal Voltage
C13	YEL	M-SW	Main switch (7Speed Mode) signal input	In the 7Speed Mode: 0 V Released the 7Speed Mode: About 5 V
C15	WHT	NDN	CVT driven pulley speed sensor signal input	With ignition switch ON (II): 0 V or about 5 V With engine at idle in the [N] position: About 2.5 V
C16	GRN/YEL	DR LS -	CVT drive pulley control valve power supply negative electrode	With ignition switch ON (II): Pulsing signal
C20	PNK	ATP D	Transmission range switch [D] position input	In the [D] position: 0 V In other than the [D] position: About 5 V
C22	WHT/RED	VEL1	CVT speed sensor signal input	With ignition switch ON (II): 0 V or about 5 V With driving (front wheels rotating): About 2.5 V

PCM CONNECTOR E (31P)

Terminal Number	Wire Color	Signal	Description	Measuring Conditions/Terminal Voltage
E8	BLU/WHT	LED A	Shift indicator control	With ignition switch ON (II) and not in the 7Speed Mode: About 5 V In the 7Speed Mode 4th, 5th, 6th speed: About 5 V 1st, 2nd, 3rd, 7th speed: About 0.3 V
E9	BLK/YEL	IG 1	Power supply circuit for solenoid valves	With ignition switch ON (II): Battery voltage With ignition switch OFF: 0 V
E11	PNK	D IND	[D] indicator control	When ignition switch is first turned ON (II): About 6 V for 2 seconds In the [D] position: About 6 V
E13	BLU/RED	SLC	Shift lock control	With ignition switch ON (II), in the [P] position brake pedal pressed, and accelerator pedal released: Battery voltage
E20	GRN/BLK	LED C	Shift indicator control	With ignition switch ON (II) and not in the 7Speed Mode: About 5 V In the 7Speed Mode 1st, 3rd, 5th speed: About 5 V 2nd, 4th, 6th, 7th speed: About 0.3 V
E21	RED/WHT	LED B	Shift indicator control	With ignition switch ON (II) and not in the 7Speed Mode: About 5 V In the 7Speed Mode 2nd, 3rd, 6th speed: About 5 V 1st, 4th, 5th, 7th speed: About 0.3 V
E22	WHT/BLK	BK SW	Brake pedal position switch signal input	Brake pedal pressed: Battery voltage Brake pedal released: 0 V
E23	RED/WHT	K-LINE	Communication line PCM-to-DLC	With ignition switch ON (II): Battery voltage
E29	BRN	SCS	SCS terminal signal input	With ignition switch ON (II) SCS terminals open: About 5 V SCS terminals short-circuited to ground: 0 V

Circuit Diagram