NO.8 AudioPilot®2 FUNCTION IS INOPERATIVE [ENTIRE AUDIO SYSTEM]

id0903e2996400

8 | AudioPilot®2 function is inoperative
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Possible DTC | Using the M-MDS | U0155:00, U0010:88
Without using M-MDS (On-board diagnostic test mode) | 16:Er12
Possible cause | • Audio amplifier malfunction • Open or short circuit in AudioPilot®2 signal wiring harness • Open or short circuit in AudioPilot®2 microphone signal wiring harness • Open or short circuit in vehicle speed signal wiring harness (e. g., instrument cluster) Note • Inspect the AudioPilot®2 function while driving the vehicle and playing a CD.

Diagnostic procedure

STEP | INSPECTION | ACTION
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1 | • Turn the AudioPilot®2 function on. • Inspect the AudioPilot®2 function operation while driving the vehicle. • Does the AudioPilot®2 system operation properly? | Yes | The system is normal. Explain the AudioPilot®2 function to the customer.
No | Go to the next step.
2 | • Inspect the connection of the audio amplifier connector (AudioPilot®2 microphone signal). • Inspect both the audio amplifier wiring harness-side connector terminal 1H, 1G and 1I for a poor connection (such as damaged/pulled-out pins, corrosion). • Are all the pins normal? | Yes | Repair or replace the pins and/or the connector.
No | Go to the next step.
3 | • Inspect the connection of the AudioPilot®2 microphone connector (2-pin). • Inspect the AudioPilot®2 microphone wiring harness-side connector terminal A and B (2-pin) for poor connection (such as damaged/pulled-out pins, corrosion). • Are all pins normal? | Yes | Repair or replace the pins and/or the connector.
No | Go to the next step.
4 | • Inspect continuity between the following terminals of the audio amplifier connector and body ground. ― Terminal 1H (AudioPilot®2 microphone+) ― Terminal 1G (AudioPilot®2 microphone-) ― Terminal 2C (vehicle speed signal) • Is there continuity? | Yes | Repair or replace the wiring harness for a possible short to ground.
No | Go to the next step.
5 | • Inspect continuity between the following terminals of the audio amplifier connector and AudioPilot®2 microphone/instrument cluster connector. ― Terminal 1H—AudioPilot®2 microphone terminal B (+) ― Terminal 1G—AudioPilot®2 microphone terminal A (-) ― Terminal 2C—Instrument cluster terminal O (vehicle speed signal) • Is there continuity? | Yes | Go to the next step.
No | Repair or replace for open circuit.
6 | • Retrieve the DTCs from all vehicle modules using the M-MDS. • Is there the following DTC displayed? ― Vehicle speed signal ― CAN communication | Yes | Go to the appropriate DTC inspection.
No | Replace the audio amplifier. (See AUDIO AMPLIFIER REMOVAL/INSTALLATION.)