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Honda Fit/Jazz - EPS System Description (HATC Model)
Online Honda Fit/Jazz 2002-2005 Workshop repair manual used by professionals.
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Snip from the Manual
EPS System Description
EPS Control Unit Inputs and Outputs for Connector A (4P)
IMAGE REPLACED HERE
Terminal number Wire color Terminal sign
(Terminal name)Description Measurement Terminals Conditions
Ignition switch ON (II)Voltage
(Motor plus)Drives the actuator motor1-GND——————2WHT/ BLU+B
(Plus battery)Power source for the actuator motor2-GNDEvery timeBattery voltage3GRNM-
(Motor minus)Drives the actuator motor3-GND——————4BLKPG
(Power ground)Ground for the actuator motor4-GND——————
EPS Control Unit Inputs and Outputs for Connector B (14P)
IMAGE REPLACED HERE
Terminal number Wire color Terminal sign
(Terminal name)Description Measurement Terminals Conditions
(Ignition switch ON (II))Voltage
(Voltage common 1)Power source for torque sensor (12 V)1-GNDStart the engineBattery voltageIgnition switch OFF0 V2REDVcc2 (5 V)
(Voltage common 2)Reference voltage for torque sensor (5 V)2-GNDStart the engineAbout 5 VIgnition switch OFF0 V3BRNSCS
(Service check signal)Detects service check connector signal—————————4BLU/YELVSP
(Vehicle speed pulse)Detects the vehicle speed signal for the speed sensor or the ECM/PCM (4 pulse/Rev)4-GNDRaise the vehicle off the ground and spin the front wheelAlternating voltage about 0 V-5 V-0 V-5 V5GRYDIAG-H
(Diagnosis-H)Communicate with HDS—————————6YELIG1
(Ignition 1)Power source for activating the system6-GNDIgnition switch ON (II)Battery voltageIgnition switch OFF0 V7GRY/BLUT/SIG
(Torque sensor F/S signal)Detects torque sensor signal7-GNDStart the engineMomently 5 V8YELVT6
(Voltage torque 6)Detects torque sensor signal8-GNDStart the engine and turn the steering wheelAbout 0 V-5 V9WHTT/SGND
(Torque sensor ground)Ground for the torque sensor9-GND——————10BLUVT3
(Voltage torque 3)Detects torque sensor signal10-GNDStart the engine and turn the steering wheelAbout 0 V-5 V11PNK/BLURY+
(Relay trigger plus)Drives the motor relay (motor relay is turned OFF when problem occurs)11-GNDStart the engineBattery voltageIgnition switch OFF0 V13YEL/REDWLP
(Warning lamp)Drives the EPS indicator light13-GNDEPS indicatorONBattery voltageOFF0 V14BLUNEP
(Engine pulse)Detect the engine pulse14-GNDStart the engineAbout 0 V-Battery
voltage 4-GND ———