DTC U3003:17 [AUDIO AMPLIFIER (TYPE-A)]
id1602b0012100
Description |
Audio amplifier high power supply voltage input |
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Detection condition
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• Audio amplifier power supply circuit voltage exceeding 16.0 ± 0.8 V is detected for 5 s or more with the ignition switched ON (engine off or on).
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Fail-safe
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Not applicable
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Possible cause
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• DTCs are stored in the PCM.
• Battery malfunction
• Generator malfunction
• Audio amplifier malfunction
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System wiring diagram
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Not applicable
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Diagnostic Procedure
Step |
Inspection |
Action |
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1
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VERIFY PCM DTCs
• Retrieve the PCM DTCs using the M-MDS.
(Refer to the [ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-G)]] in the workshop manual)
(Refer to the [ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D)]] in the workshop manual)
• Are any DTCs displayed?
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Yes
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Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.
(Refer to the [DTC TABLE [PCM (SKYACTIV-G)]] in the workshop manual)
(Refer to the [DTC TABLE [PCM (SKYACTIV-D)]] in the workshop manual)
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No
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Go to the next step.
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2
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INSPECT BATTERY
• Inspect the battery.
(Refer to the [BATTERY INSPECTION] in the workshop manual)
• Is the battery normal?
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Yes
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Go to the next step.
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No
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Replace the battery, then go to Step 4.
(Refer to the [BATTERY REMOVAL/INSTALLATION] in the workshop manual)
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3
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INSPECT GENERATOR
• Inspect the generator.
(Refer to the [GENERATOR INSPECTION] in the workshop manual)
• Is the generator normal?
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Yes
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Go to the next step.
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No
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Replace the generator, then go to the next step.
(Refer to the [GENERATOR REMOVAL/INSTALLATION] in the workshop manual)
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4
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VERIFY THAT REPAIRS HAVE BEEN COMPLETED
• Clear the DTC for the audio amplifier using the M-MDS.
• Retrieve the audio amplifier DTCs using the M-MDS.
• Is the same Pending DTC present?
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Yes
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Repeat the inspection from Step 1.
• If the malfunction recurs, replace the audio amplifier.
(Refer to the [AUDIO AMPLIFIER REMOVAL/INSTALLATION] in the workshop manual)
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No
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Go to the next step.
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5
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VERIFY IF OTHER DTCs DISPLAYED
• Are any other DTCs displayed?
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Yes
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Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.
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No
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DTC troubleshooting completed.
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