Honda CIVIC 10G 2016 Electric Parking Brake System Page 1

Electric Parking Brake System Description - Overview
The electric parking brake system replaces the traditional parking brake pedal or lever and linkage with an electrically controlled
parking brake mechanism in the rear calipers. This reduces driver effort and provides additional features such as:
Simple electric switch operation
Parking brake release upon acceleration
Automatic rollaway prevention
The system is controlled by the VSA modulator-control unit.
The electric parking brake consists of the following primary components:
VSA modulator-control unit
Electric parking brake actuators
Electric parking brake switch
System indicators
For locations of each component on vehicle, refer to Component Location Index, and for functions of indicators, refer to How to
Troubleshoot the Electric Parking Brake.
Function
The electric parking brake system has following functions.
Electric Parking Brake System Description - Overview 1510 http://techinfo.honda.com/rjanisis/pubs/sm/1/2/Contents/enu/61TBAD/...
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Contents Summary of Electric Parking Brake System

  • Page 1Electric Parking Brake System Description - Overview The electric parking brake system replaces the traditional parking brake pedal or lever and linkage with an electrically controlled parking brake mechanism in the rear calipers. This reduces driver effort and provides additional features such as:
  • Page 2Electric Parking Brake System Description - Electric Parking Brake Actuator The electric parking brake actuator has a built-in DC motor. When the motor operates, the motor's speed is reduced by the 2 step worm gear reducer and a ball screw mechanism, increasing torque. The 2nd worm wheel gear turns
  • Page 3Electric Parking Brake System Description - Electric Parking Brake Switch The electric parking brake switch is connected to the VSA modulator-control unit using four separate circuits. The control unit must see the correct voltage patterns on all 4 circuits, or the switch will be disabled and a DTC
  • Page 4Electric Parking Brake System Component Location Index cardiagn.com
  • Page 5Electric Parking Brake System Description - Clutch Pedal Stroke Sensor Overview The clutch pedal stroke sensor is located in the clutch pedal assembly. The clutch pedal stroke sensor detects the stroke of clutch pedal, and outputs two kinds of voltage values depending on the given angle. The VSA mod
  • Page 6Electric Parking Brake System Description - Control Manual Operating Function The electric parking brake can be manually applied and released using the switch. Pulling up on the electric parking brake switch applies the parking brake. Firmly applying the brake pedal and pushing down on the electric
  • Page 7Electric Parking Brake System Description - System Diagram This system diagram shows the inputs and outputs of the electric parking brake system. For locations of each component on vehicle, refer to Component Location Index: VSA modulator-control unit, Wheel speed sensor Electric parking brake switc
  • Page 8Transmitting Unit Signal Name Neutral position sensor signal*1 *1: M/T *2: CVT *3: With LKAS cardiagn.com
  • Page 9Transmitting Unit Signal Name TCM*2 Shift position signal Gauge control module Odometer data SRS unit Driver's seat belt buckle switch status Longitudinal acceleration signal Multipurpose camera unit*3 Parking brake actuation request signal *1: M/T *2: CVT *3: With LKAS Electric Parking Brake System
  • Page 10Electric Parking Brake System Description - System Diagram This system diagram shows the inputs and outputs of the electric parking brake system. For locations of each component on vehicle, refer to Component Location Index: VSA modulator-control unit, Wheel speed sensor Electric parking brake switc
  • Page 11Transmitting Unit Signal Name Neutral position sensor signal*1 *1: M/T *2: CVT *3: With LKAS cardiagn.com
  • Page 12Transmitting Unit Signal Name TCM*2 Shift position signal Gear position signal Gauge control module Odometer data SRS unit Driver's seat belt buckle switch status Longitudinal acceleration signal Millimeter wave radar*3 Parking brake actuation request signal *1: M/T *2: CVT *3: With LKAS Electric Pa
  • Page 13Electric Parking Brake Actuator Removal and Installation 1. Vehicle - Lift 2. Rear Wheel - Remove 3. Electric Parking Brake Actuator - Remove 1. Disconnect the connector (A). NOTE: If the connector lock tab is difficult to release, push in on the connector body before pushing on the release lock. ca
  • Page 14NOTE: If the brake system indicator (red) does not go OFF, check for poor connection at the electric parking brake actuator connector. 3. Turn the vehicle to the OFF (LOCK) mode. cardiagn.com
  • Page 15Electric Parking Brake Forced Cancellation NOTE: Forced cancellation is performed when the system is abnormal and the parking brake cannot be released. 1. Vehicle - Lift 2. Rear Wheel - Remove 3. Electric Parking Brake Actuator - Remove cardiagn.com 4. Parking Brake - Forced Cancel 1. Using an E11 T
  • Page 16Electric Parking Brake Switch Removal, Installation, and Test 1. Center Console Shift Panel - Remove 2. Electric Parking Brake Switch - Remove 1. Remove the electric parking brake/automatic brake hold switch (A) cardiagn.com 2. Remove the automatic brake hold switch (A). 3. All Removed Parts - Insta
  • Page 171. On the switch side, check for continuity between the connector terminals in each switch position according to the table. 2. If the switch does not work as described in the table, replace the switch. cardiagn.com
  • Page 18Electric Parking Brake Symptom Troubleshooting - Brake system indicator (red) indicator does not come on Brake system indicator (red) indicator does not come on 1. Gauge control module operation check: cardiagn.com ‐1. Do the gauge control module self-diagnostic function. Is the gauge control module
  • Page 19Electric Parking Brake Symptom Troubleshooting - Brake system indicator (red) indicator does not go off cardiagn.com Brake system indicator (red) indicator does not go off 1. DTC check: ‐1. Turn the vehicle to the ON mode. ‐2. Check for DTCs with the HDS. DTC Description DTC Freeze Frame Are there D
  • Page 20‐3. Check for continuity between test points 1 and 2. Test condition Vehicle OFF (LOCK) mode VSA modulator-control unit 46P connector: disconnected Gauge control module connector A (32P): disconnected Test point 1 VSA modulator-control unit 46P connector No. 16 Test point 2 Body ground Is there cont
  • Page 21Electric Parking Brake Symptom Troubleshooting Index Symptom Diagnostic procedure Also check for HDS does not communicate with the Troubleshoot the DLC circuit. VSA modulator-control unit or the vehicle Brake system indicator (amber) does Do the gauge control module self-diagnostic not come on funct
  • Page 22How to Troubleshoot the Electric Parking Brake System Control Unit The vehicle is equipped with the electric parking brake and the system is controlled by the VSA modulator-control unit. NOTE: For DTCs of the electric parking brake system, please check from the ABS/TCS/VSA menu in the HDS. System In
  • Page 23The electric parking brake actuator operates when the parking brake applies or releases. The parking brake motor can be heard at the rear wheels when the parking brake is applied or released, this is normal. Electric Parking Brake Forced Cancellation When the electric parking brake system has malfun
  • Page 24cardiagn.co
  • Page 254. Check the diagnostic trouble code (DTC) for all systems, troubleshoot the powertrain DTCs first. Then refer to the indicated DTC's troubleshooting, and do the appropriate troubleshooting procedure. NOTE: The HDS can read the DTC, the freeze data, the current data, and other system data. For speci
  • Page 26Idle Speed Inspection NOTE: Before checking the idle speed, check these items: - The malfunction indicator lamp (MIL) has not been reported on, and there are no DTCs. - Spark plugs - Air cleaner - PCV system Apply the parking brake. 1. HDS - Connect cardiagn.com 2. Idle Speed - Inspect 1. Start the
  • Page 27NOTE: If the idle speed is not within specification, do the PCM idle learn procedure. If the idle speed is still not within specification, go to the symptom troubleshooting. cardiagn.com