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Start the engine, and let it idle.
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Monitor the ALTERNATOR in the DATA LIST with the HDS.
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Check if the indicated percentage varies when the headlight switch is turned on.
Does the percentage vary?
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YES
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-
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The alternator signal circuit is OK.■
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NO
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-
|
|
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Turn the headlight switch off and the ignition switch to LOCK (0).
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Jump the SCS line with the HDS.
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Disconnect the alternator 4P connector.
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Disconnect ECM/PCM connector B (49P).
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Check for continuity between body ground and ECM/PCM connector terminal B47.
YES
|
-
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Repair short in the wire between the ECM/PCM (B47) and the alternator.■
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NO
|
-
|
|
|
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