Honda HR-V Owners & Service Manuals

Honda HR-V: DTC B0070-12

NOTE:

  • Before doing this troubleshooting procedure, find out if the vehicle was in a collision. If so, verify that all the required components were replaced with new components of the correct part number, and that they were properly installed.
  • Before doing this troubleshooting procedure, review SRS Precautions and Procedures, General Troubleshooting Information, and 12 Volt Battery Terminal Disconnection and Reconnection.
  • Before replacing the SRS unit, check the SRS unit software version with the HDS. If the software version is not the latest, update the SRS unit software, and retest.

Supplemental Restraint System - Diagnostics

DTC (SRS)

1. Problem verification.

  1. Clear the DTCs with the HDS.
  2. Clear DTCs

Turn the vehicle to the ON mode, then wait for 10 seconds.

  1. Check for DTCs with the HDS.

Supplemental Restraint System - Diagnostics

Is DTC B0070-12 indicated?

YES

The failure is duplicated. Go to step 2.

NO

Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures. If another DTC is indicated, troubleshoot the DTC.

2. Shorted wire check (LRP+, LRP- lines to power) 1:

  1. Turn the vehicle to the OFF (LOCK) mode.
  2. Disconnect the negative cable from the 12 volt battery, then wait at least 3 minutes.
  3. Disconnect the following connector.

SRS unit connector B (39P)

  1. Reconnect the negative cable to the 12 volt battery.
  2. Turn the vehicle to the ON mode.
  3. Measure the voltage between test points 1 and 2.

Supplemental Restraint System - Diagnostics

Is there 0.2 V or less?

YES

The LRP+ and LRP- wires are OK. Replace the SRS unit.

NO

Go to step 3.

3. Shorted wire check (LRP+, LRP- lines to power) 2:

  1. Turn the vehicle to the OFF (LOCK) mode.
  2. Disconnect the negative cable from the 12 volt battery, then wait at least 3 minutes.
  3. Remove the left side B-pillar lower trim - Refer to: Interior Trim Removal and Installation - Pillar Areas (With Side Curtain Airbag), or Interior Trim Removal and Installation - Pillar Areas (Without Side Curtain Airbag).
  4. Disconnect the following connector.

Driver's seat belt tensioner 2P connector (on the floor wire harness)

  1. Reconnect the negative cable to the 12 volt battery.
  2. Turn the vehicle to the ON mode.
  3. Measure the voltage between test points 1 and 2.

Supplemental Restraint System - Diagnostics

Is there 0.2 V or less?

YES

The LRP+ and LRP- wires are OK. Faulty driver's seat belt tensioner; replace the driver's seat belt, then clear the DTC.

NO

Short to power in the floor wire harness; replace the floor wire harness, then clear the DTC.

    READ NEXT:

     DTC B0070-13

    NOTE: Before doing this troubleshooting procedure, find out if the vehicle was in a collision. If so, verify that all the required components were replaced with new components of the correct pa

     DTC B0070-1A

    Special Tools Required SRS Short Canceller 070AZ-SAA0100 NOTE: Before doing this troubleshooting procedure, find out if the vehicle was in a collision. If so, verify that all the required compone

     DTC B0072-11

    NOTE: Before doing this troubleshooting procedure, find out if the vehicle was in a collision. If so, verify that all the required components were replaced with new components of the correct pa

    SEE MORE:

     DTC U1281, U128D (Keyless Access Power Control Unit)

    NOTE: Refer to the DTC code shown on the display, and then inspect the connectors and terminals based on the instructions in the table below. The DTC may be stored due to the grounding failure or the power source failure at the transmitting control unit (the grounding inspection and the powe

     Description

    CLUTCH SYSTEM DESCRIPTION - CLUTCH PEDAL POSITION SWITCH (M/T) A clutch pedal position switch A is installed on the clutch pedal. The clutch pedal position switch A is mostly used to start up the engine by turning the ignition to ON or to restart the engine when recovering from an engine stall. T

    © 2019-2024 Copyright www.hohrv2.com