Honda HR-V: DTC B0021-11
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 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.
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DTC (SRS)
1. Problem verification:
- Clear the DTCs with the HDS.
Clear DTCs
- Turn the vehicle to the ON mode, then wait for 10 seconds.
- Check for DTCs with the HDS.
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Is DTC B0021-11 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 (LCA+, LCA- lines) 1:
- Turn the vehicle to the OFF (LOCK) mode.
- Disconnect the negative cable from the 12 volt battery, then wait at
least 3 minutes.
- Disconnect the following connector.
SRS unit connector B (39P)
- Measure the resistance between test points 1 and 2.
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Is there an open circuit?
YES
The LCA+ and LCA- wires are OK. Replace the SRS unit.
NO
Go to step 3.
3. Shorted wire check (LCA+, LCA- lines) 2:
- Remove the headliner.
- Disconnect the following connector.
Left side curtain airbag inflator 2P connector (on the floor wire harness)
- Measure the resistance between test points 1 and 2.
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Is there an open circuit?
YES
The LCA+ and LCA- wires are OK. Faulty left side curtain airbag inflator;
replace the left side curtain
airbag, then clear the DTC.
NO
Short to ground in the floor wire harness; replace the floor wire harness,
then clear the DTC.
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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
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
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
SEE MORE:
Removal & Installation
1. Passenger's Dashboard Panel - Remove
Remove the passenger's dashboard panel (A)
Disconnect the connector (B).
2. Passenger's Dashboard Vent- Remove
If necessary, remove the passenger's dashboard vent
(A).
3. Center Dashboard Vent - Remove
If necessary, remo
DESCRIPTION
EPS SYSTEM DESCRIPTION - STEERING COLUMN
The steering force from the steering wheel is sent to the column shaft. The
torque sensor measures the
difference between the force applied to the column shaft and the resistance to
turning the wheels due to road
friction, and converts it to a v