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DTC P16BB:
Alternator B Terminal Circuit Low Voltage
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Turn the ignition switch to ON (II).
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Clear the DTC with HDS.
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Start the engine.
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Check under these conditions:
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Hold the engine speed at 2,000 rpm (min
−1
) (A/T in P or N, M/T in neutral) for 1 minute.
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Check for Temporary DTCs or DTCs with the HDS.
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YES
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NO
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-
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Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the alternator and the battery terminal fuse box, and
check the battery performance.
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Check for poor connections or loose terminals at the alternator and the battery terminal fuse box (+B line).
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Are the connections and terminals OK?
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YES
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-
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NO
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-
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Repair the connectors or terminals, then go to
Step 9
.
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Check for an open in the wire between the alternator and battery terminal fuse box at the engine wire harness.
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YES
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-
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NO
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-
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Repair open in the wire between the alternator and the battery terminal fuse box, then go to
Step 9
.
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Turn the ignition switch to ON (II).
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Reset the ECM/PCM with the HDS.
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Start the engine.
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Check under these conditions:
-
Hold the engine speed at 2,000 rpm (min
−1
) (A/T in P or N, M/T in neutral) for 1 minute.
-
Check for Temporary DTCs or DTCs with the HDS.
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YES
|
-
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Check for poor connections or loose terminals at the alternator and the battery terminal fuse box, then go to
Step 1
.
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NO
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-
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Troubleshooting is complete. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.■
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