|
DTC Troubleshooting: B1646
DTC B1646: Driver Door LF Antenna Circuit Open
|
DTC Description |
DTC |
|
B1646 Driver's Door LF Antenna Circuit Open |
| |
|
|
1. |
Problem verification:
Problem verification
|
?1. |
Clear the DTCs with the HDS.
|
|
?2. |
Select the MODE MENU from the HDS, then enter the SELF CHECK.
|
|
?4. |
Check for DTCs with the HDS.
|
DTC Description |
DTC |
|
B1646 Driver's Door LF Antenna Circuit Open |
| |
| | |
Is DTC B1646 indicated?
|
|
|
|
|
|
|
Intermittent failure, the system is OK at this time. Check for loose or poor connections.? |
|
2. |
Keyless access control unit EXT FR DR+, EXT FR DR- line output check:
Keyless access control unit EXT FR DR+, EXT FR DR- line output check
|
?1. |
Press the engine start/stop button to select the OFF mode. |
|
?2. |
Disconnect the following connector.
|
|
?3. |
Press the engine start/stop button to select the ON mode. |
|
?4. |
Select KEYLESS ACCESS CONTROL from the ONE-PUSH START system select menu with the HDS, and enter FUNCTIONAL TESTS.
|
|
?5. |
Connect the voltmeter to test points 1 and 2.
|
Test point 1 |
Driver's door outer handle 8P connector No. 2 (GRN) |
|
Test point 2 |
Driver's door outer handle 8P connector No. 6 (BLU) | |
|
|
|
?6. |
Select DRIVER'S DOOR ANTENNA with the HDS. | |
Is there voltage?
|
3. |
Open wire check (EXT FR DR+, EXT FR DR- lines):
Open wire check (EXT FR DR+, EXT FR DR- lines)
|
?1. |
Press the engine start/stop button to select the OFF mode. |
|
?2. |
Disconnect the following connector.
|
|
?3. |
Check for continuity between test points 1 and 2 respectively.
|
Test condition |
OFF mode
Keyless access control unit connector A (32P): disconnected
Driver's door outer handle 8P connector: disconnected |
|
Test circuit |
EXT FR DR+ |
|
Test point 1 |
Keyless access control unit connector A (32P) No. 29 (GRN) |
|
Test point 2 |
Driver's door outer handle 8P connector No. 2 (GRN) | |
|
|
Test circuit |
EXT FR DR- |
|
Test point 1 |
Keyless access control unit connector A (32P) No. 13 (BLU) |
|
Test point 2 |
Driver's door outer handle 8P connector No. 6 (BLU) | |
|
| |
Is there continuity?
|
|
|
|
|
|
|
Repair an open or high resistance in the wire.? | |