Pinpoint Test O : Voice Command Is Inoperative Or Outgoing Audio Is Not Transmitted During A Phone Call
WARNING: This page is about a different car, the 2018 Ford EcoSport. However, it is still accessible from the selected car via links, so may be relevant.
- Audio System/Navigation - AM/FM/CD/SYNC for schematic and connector information.
Normal Operation and Fault Conditions
DTC Fault Trigger Conditions
DTC Description Fault Trigger Condition APIM B1D79:11 Microphone Input: Circuit Short To Ground Sets during the on-demand self-test when the APIM detects a short to ground from the microphone circuitry. APIM B1D79:12 Microphone Input: Circuit Short To Battery Sets during the on-demand self-test when the APIM detects a short to voltage from the microphone circuitry. APIM B1D79:13 Microphone Input: Circuit Open Sets during the on-demand self-test when the APIM detects an open from the microphone circuitry. Possible Sources
- Wiring, terminals, or connectors
- Steering wheel switch control concern
- Microphone
- APIM
- O1 CHECK THE SCCM (STEERING COLUMN CONTROL MODULE) STEERING WHEEL SWITCH PARAMETER IDENTIFICATIONS (PIDS)
- Using a diagnostic scan tool, view the SCCM Parameter Identifications (PIDs).
- Using a diagnostic scan tool, view the SCCM audio/media switch Parameter Identifications (PIDs) while pressing each button.
Do the Parameter Identifications (PIDs) correspond correctly?
Yes GO to O2 No GO to Pinpoint Test J - O2 CHECK THE MICROPHONE CIRCUITS FOR A SHORT TO VOLTAGE
- Ignition OFF.
- Disconnect APIM C2383A.
- Disconnect Microphone C9221 (vehicles not equipped with an overhead console).
- Disconnect Microphone C9222 (vehicles equipped with an overhead console).
- Ignition ON.
- Measure:
Positive Lead Measurement / Action Negative Lead Refer to C2383A-12 Ground Refer to C2383A-13 Ground
Is any voltage present?
Yes REPAIR the circuit in question. No GO to O3 - O3 CHECK THE MICROPHONE CIRCUITS FOR A SHORT TO GROUND
- Ignition OFF.
- Measure:
Positive Lead Measurement / Action Negative Lead Refer to C2383A-12 Ground Refer to C2383A-13 Ground
Are the resistances greater than 10, 000 ohms?
Yes GO to O4 No REPAIR the circuit in question. - O4 CHECK THE MICROPHONE CIRCUITS FOR A SHORT TO EACH OTHER OR SHORT TO SHIELD
- Measure:
Positive Lead Measurement / Action Negative Lead Refer to C2383A-12 Refer to C2383A-13 Refer to C2383A-12 Refer to C2383A-31 Refer to C2383A-13 Refer to C2383A-31
Are the resistances greater than 10, 000 ohms?
Yes GO to O5 No REPAIR the circuits in question. - Measure:
- O5 CHECK THE MICROPHONE CIRCUITS FOR AN OPEN
- Measure:
Vehicles Not Equipped With An Overhead Console
Positive Lead Measurement / Action Negative Lead Refer to C2383A-12 Refer to C9221-1 Refer to C2383A-13 Refer to C9221-2 Vehicles Equipped With An Overhead Console
Positive Lead Measurement / Action Negative Lead Refer to C2383A-12 Refer to C9222-1 Refer to C2383A-13 Refer to C9222-2
Are the resistances less than 3 ohms?
Yes Install a new microphone. TEST the system for normal operation. If the concern is still present, GO to O6 No REPAIR the circuit in question. - Measure:
- O6 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION
- Ignition OFF.
- Disconnect and inspect the APIM connectors.
- Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary
- Reconnect the APIM connectors. Make sure they seat and latch correctly.
- Wait 2 minutes for the APIM to re-initialize.
- Operate the system and determine if the concern is still present.
Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, Refer to APIM GUIDED ROUTINE TESTING No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.