Integrated Audio Module (ACM)

Integrated Audio Module (ACM)
Diagnostic Trouble Code (DTC) Index
Integrated Audio Module (ACM)
CAUTION: Diagnosis by substitution from a donor vehicle is NOT acceptable. Substitution of control modules does not guarantee
confirmation of a fault and may also cause additional faults in the vehicle being checked and/or the donor vehicle.
CAUTION: When probing connectors to take measurements in the course of the pinpoint tests, use the adaptor kit, part number
3548-1358-00.
NOTE:
If the control module or a component is suspect and the vehicle remains under manufacturer warranty, refer to the Warranty Policy and
Procedures manual (section B1.2), or determine if any prior approval programme is in operation, prior to the installation of a new
module/component.
NOTE:
Generic scan tools may not read the codes listed, or may read only 5-digit codes. Match the 5 digits from the scan tool to the first 5 digits of
the 7-digit code listed to identify the fault (the last 2 digits give extra information read by the manufacturer approved diagnostic system).
NOTE:
When performing voltage or resistance tests, always use a digital multimeter (DMM) accurate to three decimal places, and with an up-to-date
calibration certificate. When testing resistance, always take the resistance of the DMM leads into account.
NOTE:
Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests.
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NOTE:
If DTCs are recorded and, after performing the pinpoint tests a fault is not present, an intermittent concern may be the cause. Always check for
loose connections and corroded terminals.
NOTE:
Where an 'on demand self-test' is referred to, this can be accessed via the 'DTC Monitor' tab on the manufacturers approved diagnostic system.
The table below lists all Diagnostic Trouble Codes (DTCs) that could be logged in the Integrated Audio Module , for additional Diagnosis and
Testing information refer to the relevant Diagnosis and Testing Section. For additional information, refer to Information and Entertainment
System See: Accessories and Optional Equipment/Entertainment Systems/Testing and Inspection/Initial Inspection and Diagnostic Overview
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