Index Infiniti Infiniti M45 (Y34) - service repair manual 2004 year
|
|
AUTOMATIC SPEED CONTROL DEVICE (ASCD) ACS-5 [ASCD] C D E F G H I J L M A B ACS ● to combination meter terminal 40 and 42. Power is supplied at all times: ● through 15A fuse [No. 17, located in the fuse block (J/B) NO.1] ● to the stop lamp switch terminal 1. When park/neutral position is in the P or N position, ground is supplied: ● to park/neutral position relay terminal 2 ● through body grounds E24 and E42. When MAIN (CRUISE) switch is depressed (ON), ground is supplied: ● to ASCD steering switch terminal 2 ● from ASCD control unit terminal 11. ● to ASCD control unit terminal 24 ● from ASCD steering switch terminal 1. then ASCD control unit holds CRUISE condition and illuminates CRUISE indicator. ● to combination meter terminal 60 ● from ASCD control unit terminal 15. OPERATION To activate the ASCD, all of following conditions must exist. ● Power supply to ASCD control unit terminal 8. [Brake pedal is released and A/T selector lever is in a posi- ● Vehicle speed is between 40 km/h (25 MPH) and 144 km/h (89 MPH). (Signal from combination meter) When the SET/COAST switch is depressed, power is supplied: ● from ASCD control unit terminal 11 ● to ASCD steering switch terminal 2. And then ASCD pump is activated to control throttle wire and ASCD control unit supply ground ● to combination meter terminals 61 to illuminate SET indicator. A/T Overdrive Control During Cruise Control Driving When the vehicle speed is approximately 3 km/h (2 MPH) below set speed, a signal is sent ● from ASCD control unit terminal 10 ● to TCM (transmission control module) through combination meter. When this occurs, the TCM (transmission control module) cancels overdrive. ASCD Shifting Control During ASCD cruise, ASCD control unit controls A/T shifting to avoid uncomfortable shifting. ● Throttle position sensor from ECM ● A/T shift solenoid valve A Coast Operation When the SET/COAST switch is depressed during cruise control driving, ASCD actuator returns the throttle Accel Operation When the RESUME/ACCEL switch is depressed, power is supplied ● from ASCD control unit terminal 11 ● to ASCD steering switch terminal 2. If the RESUME/ACCEL switch is depressed during cruise control driving, ASCD actuator pulls the throttle |