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DTC Troubleshooting: B1648
DTC B1648: Passenger Door LF Antenna Circuit Open
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DTC Description |
DTC |
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B1648 Passenger's Door LF Antenna Circuit Open |
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1. |
Problem verification:
Problem verification
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?1. |
Clear the DTCs with the HDS.
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?2. |
Select the MODE MENU from the HDS, then enter the SELF CHECK.
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?4. |
Check for DTCs with the HDS.
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DTC Description |
DTC |
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B1648 Passenger's Door LF Antenna Circuit Open |
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Is DTC B1648 indicated?
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Intermittent failure, the system is OK at this time. Check for loose or poor connections.? |
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2. |
Keyless access control unit EXT FR AS+, EXT FR AS- line output check:
Keyless access control unit EXT FR AS+, EXT FR AS- line output check
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?1. |
Press the engine start/stop button to select the OFF mode. |
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?2. |
Disconnect the following connector.
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?3. |
Press the engine start/stop button to select the ON mode. |
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?4. |
Select KEYLESS ACCESS CONTROL from the ONE-PUSH START system select menu with the HDS, and enter FUNCTIONAL TESTS.
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?5. |
Connect the voltmeter to test points 1 and 2.
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Test point 1 |
Front passenger's door outer handle 8P connector No. 2 (GRN) |
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Test point 2 |
Front passenger's door outer handle 8P connector No. 6 (BLU) | |
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?6. |
Select FRONT PASSENGER DOOR ANTENNA with the HDS. | |
Is there voltage?
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3. |
Open wire check (EXT FR AS+, EXT FR AS- lines):
Open wire check (EXT FR AS+, EXT FR AS- lines)
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?1. |
Press the engine start/stop button to select the OFF mode. |
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?2. |
Disconnect the following connector.
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?3. |
Check for continuity between test points 1 and 2 respectively.
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Test condition |
OFF mode
Keyless access control unit connector A (32P): disconnected
Front passenger's door outer handle 8P connector: disconnected |
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Test circuit |
EXT FR AS+ |
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Test point 1 |
Keyless access control unit connector A (32P) No. 22 (GRN) |
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Test point 2 |
Front passenger's door outer handle 8P connector No. 2 (GRN) | |
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Test circuit |
EXT FR AS- |
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Test point 1 |
Keyless access control unit connector A (32P) No. 6 (BLU) |
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Test point 2 |
Front passenger's door outer handle 8P connector No. 6 (BLU) | |
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Is there continuity?
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Repair an open or high resistance in the wire.? | |