Honda HR-V: DTC B0021-1A
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 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 B0021-1A 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. Left side curtain airbag inflator check:
- Turn the vehicle to the OFF (LOCK) mode.
- Disconnect the negative cable from the 12 volt battery, then wait at least 3 minutes.
- Remove the headliner.
- Disconnect the following connector.
Left side curtain airbag inflator 2P connector (on the floor wire harness)
- Reconnect the negative cable to the 12 volt battery.
- 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 B0021-1A indicated?
YES
Go to step 3.
NO
Faulty left side curtain airbag inflator; replace the left side curtain airbag, then clear the DTC.
3. Shorted wire check (LCA+ line to LCA- line):
- 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)
- Connect the SRS short canceller to SRS unit connector B (39P) terminals No. 1 and No. 2.
- 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
Short to another wire in the floor wire harness; replace the floor wire harness, then clear the DTC.
READ NEXT:
DTC B0028-11
Special Tools Required
SRS Inflator Simulator 07SAZ-TB4011A
SRS Simulator Lead L 070AZ-SNAA300
NOTE:
Before doing this troubleshooting procedure, find out if the vehicle was
in a collision. If
DTC B0028-12
Special Tools Required
SRS Inflator Simulator 07SAZ-TB4011A
SRS Simulator Lead L 070AZ-SNAA300
NOTE:
Before doing this troubleshooting procedure, find out if the vehicle was
in a collision. If
DTC B0028-13
Special Tools Required
SRS Inflator Simulator 07SAZ-TB4011A
SRS Simulator Lead L 070AZ-SNAA300
NOTE:
Before doing this troubleshooting procedure, find out if the vehicle was
in a collision. If
SEE MORE:
Rearview Camera Image Does Not Come ON Or Work Properly (Without Navigation,
Color Audio Type (5-inch Screen) )
NOTE:
Check the vehicle 12 volt battery condition first.
Check the connectors for poor connections or loose terminals.
1. Problem verification:
Turn the vehicle to the ON mode.
Shift the transmission to R position/mode.
Does the audio display image change when the transmission is shifted to
A/C Compressor Clutch Check
Check
1. A/C Compressor Clutch Clearance - Check
Check the armature plate (A) for discoloration, peeling, or other
damage. If there is
damage, replace the clutch set.
Check the pulley (B) bearing play and drag by rotating the pulley by
hand. Also check
for grease leakage from the bearing.
