Honda HR-V: 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:
- Turn the vehicle to the ON mode.
- Operate the LDW OFF switch.
- Check and note the parameter below with the HDS.
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Does the value change?
YES
Go to step 2.
NO
Go to step 5.
2. LDW OFF switch indicator check 2:
- 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:
- Turn the vehicle to the OFF (LOCK) mode.
- Wait for 10 seconds (For multi purpose camera unit shut down) and disconnect the following connector.
Multi purpose camera unit 12P connector
- Turn the vehicle to the ON mode.
- 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):
- Turn the vehicle to the OFF (LOCK) mode.
- Disconnect the following connector.
LDW OFF switch 12P connector
- Check for continuity between test points 1 and 2.
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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:
- Check and note the parameter below with the HDS.
.png)
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):
- Turn the vehicle to the OFF (LOCK) mode.
- Disconnect the following connector.
LDW OFF switch 12P connector
Multi purpose camera unit 12P connector
- Turn the vehicle to the ON mode.
- Measure the voltage between test points 1 and 2.
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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):
- Reconnect the following connector.
LDW OFF switch 12P connector
Multi purpose camera unit 12P connector
- Measure the voltage between test points 1 and 2.
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Is there battery voltage?
YES
Replace the multi purpose camera unit.
NO
Replace the LDW OFF switch.
8. LDW OFF switch indicator check 3:
- Connect terminals A and B with a jumper wire.
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Does the indicator come on?
YES
Go to step 9.
NO
Replace the LDW OFF switch.
9. LDW OFF switch indicator check 4:
- Reconnect all connectors. (if necessary)
- Connect terminals A and B with a jumper wire.
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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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Circuit Diagram, Inputs and Outputs
CIRCUIT DIAGRAM
FORWARD COLLISION WARNING (FCW) CIRCUIT DIAGRAM
LANE DEPARTURE WARNING (LDW) CIRCUIT DIAGRAM
INPUTS AND OUTPUTS
FORWARD COLLISION WARNING (FCW) (MULTIPURPOSE CAMERA UNIT) CONNECTOR F
SEE MORE:
DTC B0072-12
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, rev
Protecting Child Passengers
Each year, many children are injured or killed in vehicle crashes because
they are
either unrestrained or not properly restrained. In fact, vehicle accidents are
the
number one cause of death of children ages 12 and under.
To reduce the number of child deaths and injuries, every state, Canadian
