AC10 CHECK FOR CORRECT SCCM (STEERING COLUMN CONTROL MODULE) OPERATION

Are the resistances greater than 10,000 ohms?

Yes		GO to AC10
No		INSTALL a new clockspring. REFER to: Clockspring (501-20B Supplemental Restraint System, Removal and Installation).

Ignition OFF. Disconnect and inspect all the SCCM connectors. Repair:

Corrosion (clean module pins or install new connectors or terminals) Damaged or bent pins (install new terminals or pins) Pushed-out pins (install new pins as necessary)

Reconnect the SCCM connectors. Make sure they seat and latch correctly. Operate the system and determine if the concern is still present.

Is the concern still present?

Yes		CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new SCCM. REFER to: Steering Column Control Module (SCCM) (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
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.

The CD Player Is Inoperative Or Does Not Operate Correctly

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - System Operation and Component Description (415-00B Information and Entertainment System - General Information - Vehicles With: Touchscreen Display, Description and Operation). See ACM.

DTC Fault Trigger Conditions

			Description	Fault Trigger Conditions	DTC Type
	DTC
B1D19:49	Compact Disc Unit: Internal Electronic Failure	Set by the ACM when the internal circuit board cannot communicate with the CD mechanism while in CD mode for more than 28 seconds during normal operation or for more than 5 seconds during the self-test.	Continuous and on-demand
			B1D19:4B Compact Disc Unit: Over Temperature	Set by the ACM when the internal circuit board detects that the CD mechanism exceeds the temperature threshold for more than 1 second while in CD mode.	Continuous

Description

Fault Trigger Conditions

DTC Type

DTC

B1D19:49

Compact Disc Unit: Internal Electronic Failure

Set by the ACM when the internal circuit board cannot communicate with the CD mechanism while in CD mode for more than 28 seconds during normal operation or for more than 5 seconds during the self-test.

Continuous and on-demand

B1D19:4B Compact Disc Unit:

Over Temperature

Set by the ACM when the internal circuit board detects that the CD mechanism exceeds the temperature threshold for more than 1 second while in CD mode.

Continuous

Possible Sources

Source reference 4481

2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.