Honda HR-V Owners & Service Manuals

Honda HR-V: Lane Departure Warning (LDW) Symptom Troubleshooting - LDW OFF Switch Does Not Work Or OFF Indicator Does Not Come ON

Honda HR-V (2015-2021) Service Manual / Accessories & Equipment / Driving Assistance Warning - Testing & Troubleshooting / Symptom Troubleshooting / Lane Departure Warning (LDW) Symptom Troubleshooting - LDW OFF Switch Does Not Work Or OFF Indicator Does Not Come ON

1. LDW OFF switch indicator check 1:

  1. Turn the vehicle to the ON mode.
  2. Operate the LDW OFF switch.
  3. Check and note the parameter below with the HDS.

Driving Assistance Warning - Testing & Troubleshooting

Does the value change?

YES

Go to step 2.

NO

Go to step 5.

2. LDW OFF switch indicator check 2:

  1. Check the LDW OFF switch indicator.

Does the indicator stay on?

YES

Go to step 3.

NO

Go to step 8.

3. LDW camera unit check:

  1. Turn the vehicle to the OFF (LOCK) mode.
  2. Wait for 10 seconds (For multi purpose camera unit shut down) and disconnect the following connector.

Multi purpose camera unit 12P connector

  1. Turn the vehicle to the ON mode.
  2. Check the LDW OFF switch indicator.

Does the indicator come on?

YES

Go to step 4.

NO

Replace the multi purpose camera unit.

4. Shorted wire check (LDW OFF IND line):

  1. Turn the vehicle to the OFF (LOCK) mode.
  2. Disconnect the following connector.

LDW OFF switch 12P connector

  1. Check for continuity between test points 1 and 2.

Driving Assistance Warning - Testing & Troubleshooting

Is there continuity?

YES

Repair a short to body ground in the wire between the LDW OFF switch and the multi purpose camera unit.

NO

The LDW OFF IND wire is OK. Replace the LDW OFF switch.

5. LDW OFF switch check:

  1. Check and note the parameter below with the HDS.

Driving Assistance Warning - Testing & Troubleshooting

Is the voltage OK?

YES

Go to step 6.

NO

Replace the LDW OFF switch.

6. Shorted wire check (LDW OFF SW line and LDW OFF IND line):

  1. Turn the vehicle to the OFF (LOCK) mode.
  2. Disconnect the following connector.

LDW OFF switch 12P connector

Multi purpose camera unit 12P connector

  1. Turn the vehicle to the ON mode.
  2. Measure the voltage between test points 1 and 2.

Driving Assistance Warning - Testing & Troubleshooting

Driving Assistance Warning - Testing & Troubleshooting

Is there battery voltage?

YES

Repair a short to power in the wire between the LDW OFF switch and the multi purpose camera unit.

NO

The LDW OFF SW and the LDW OFF IND wires are ok. Go to step 7.

7. Shorted wire check (LDW OFF SW line):

  1. Reconnect the following connector.

LDW OFF switch 12P connector

Multi purpose camera unit 12P connector

  1. Measure the voltage between test points 1 and 2.

Driving Assistance Warning - Testing & Troubleshooting

Is there battery voltage?

YES

Replace the multi purpose camera unit.

NO

Replace the LDW OFF switch.

8. LDW OFF switch indicator check 3:

  1. Connect terminals A and B with a jumper wire.

Driving Assistance Warning - Testing & Troubleshooting

Driving Assistance Warning - Testing & Troubleshooting

Does the indicator come on?

YES

Go to step 9.

NO

Replace the LDW OFF switch.

9. LDW OFF switch indicator check 4:

  1. Reconnect all connectors. (if necessary)
  2. Connect terminals A and B with a jumper wire.

Driving Assistance Warning - Testing & Troubleshooting

Does the indicator come on?

YES

Replace the multi purpose camera unit.

NO

Repair an open in the wire between the LDW OFF switch and the multi purpose camera unit.

Troubleshooting Start

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