Honda HR-V: DTC B1646, B1648, B1660, B1664 Antenna Circuit Open
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.
DTC (Keyless Access Control Unit)
NOTE: If you are troubleshooting multiple DTCs, be sure to
follow the instructions in B-CAN System Diagnosis Test Mode A - Refer to: Body
Electrical Troubleshooting - B-CAN System Diagnosis Test Mode A - Initial
Communication and DTC Checks.
1. Problem verification:
- Clear the DTCs with the HDS.
Clear DTCs
- Select the KEYLESS ACCESS CONTROL UNIT from the ONE-PUSH START system
select menu
with the HDS, and enter the SELF CHECK.
One-Push - KEYLESS ACCESS CONTROL UNIT - SELF CHECK
- Do the SELF CHECK.
- Check for DTCs with the HDS.
Are any DTCs indicated?
YES
Go to step 2.
NO
Intermittent failure, the system is OK at this time. Check for loose or poor
connections.
2. Keyless access control unit EXT lines output check:
- Turn the vehicle to the OFF (LOCK) mode.
- Disconnect the following connector.
- Turn the vehicle to the ON mode.
- Connect the voltmeter to terminals as specified in the table.
- Select KEYLESS ACCESS CONTROL from the ONE-PUSH START system select menu
with the
HDS, and enter FUNCTIONAL TESTS.
One-Push - KEYLESS ACCESS CONTROL UNIT - FUNCTIONAL TESTS
- Select each ANTENNA L DC OUTPUT with the HDS.
Is there voltage?
YES
Replace the faulty LF antenna.
NO
Go to step 3.
3. Open wire check (EXT+ lines):
- Turn the vehicle to the OFF (LOCK) mode.
- Disconnect the following connector.
Keyless access control unit connector A (32P)
- Check for continuity between terminals as specified in the table while
in the vehicle OFF mode.
Is there continuity?
YES
The EXT+ wires are OK. Go to step 4.
NO
Repair an open or high resistance in the wire between the keyless access
control unit and the LF antenna.
4. Open wire check (EXT- lines):
Check for continuity between terminals as specified in the table while in the
vehicle OFF mode.
Is there continuity?
YES
Replace the keyless access control unit.
NO
Repair an open or high resistance in the wire between the keyless access
control unit and the LF antenna.
READ NEXT:
DTC (Keyless Access Control Unit)
NOTE: If you are troubleshooting multiple DTCs, be sure to follow the
instructions in B-CAN System
Diagnosis Test Mode A - Refer to: Body Electrical Troubleshooting
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 o
SEE MORE:
TESTING
AWD CONTROL UNIT INITIALIZATION (AWD)
Procedure
NOTE:
Whenever the AWD control unit is replaced, it must be initialized.
Park the vehicle on a flat and level surface.
1. HDS - Connect
2. AWD Control Unit - Initialization
Select the ADJUSTMENT in the AWD WITH INTELLIGENT CONTROL with t
You must change the engine oil and oil filter regularly in order to maintain
the
engine's lubrication. The engine may be damaged if they are not changed
regularly.
Change the oil and filter in accordance with the Maintenance Minder message on
the information display.
1. Run the engine until it re