Pinpoint Test AJ : U0212:00

Normal Operation and Fault Conditions

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
IPMB U0212:00	Lost Communication With Steering Column Control Module: No Sub Type Information	Sets in continuous memory in the IPMB if data messages received from the SCCM through the GWM are missing for 5 seconds or longer.

Possible Sources

Communication concern
SCCM
IPMB

AJ1 VERIFY THE CUSTOMER CONCERN

Ignition ON.

Verify there is an observable symptom present.

Is an observable symptom present?

Yes

GO to AJ2

No	CLEAR the DTC. The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AJ2 CHECK THE COMMUNICATION NETWORK
- Using a diagnostic scan tool, perform the network test.
Does the SCCM pass the network test?

Yes GO to AJ3

No REFER to: Communications Network .

AJ3 PERFORM THE IPMB (IMAGE PROCESSING MODULE B) SELF-TEST
- Using a diagnostic scan tool, perform the IPMB self-test.
Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes REFER to Diagnostic Trouble Code (DTC) Chart .

No GO to AJ4

AJ4 PERFORM THE SCCM (STEERING COLUMN CONTROL MODULE) SELF-TEST
- Using a diagnostic scan tool, perform the SCCM self-test.
Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes REFER to: Steering Wheel and Column Electrical Components .

No GO to AJ5

AJ5 RECHECK THE IPMB (IMAGE PROCESSING MODULE B) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, clear the IPMB Diagnostic Trouble Codes (DTCs).

Ignition OFF.

Ignition ON.

Wait 10 seconds.

Using a diagnostic scan tool, perform the continuous memory self-test.

Check the IPMB Diagnostic Trouble Codes (DTCs).

Is DTC U0212:00 present?

Yes

GO to AJ6

No	The system is operating correctly at this time. The DTC may have been set due to high network traffic, or an intermittent fault condition.

AJ6 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI, or the PMI may not have been carried out.

CHECK the vehicle service history for recent service actions related to the SCCM or IPMB. If recent service history is found:
- verify correct replacement module was installed
  - vehicle parts build may be used to verify correct part fitment
- verify the configuration of replacement module was correct
  - re-configure module using as-built data if prior configuration is suspect
- verify the module was not obtained from a like vehicle and installed into customer vehicle
  - return the swapped module to source vehicle and obtain new replacement module
  - if a new replacement module is installed, PERFORM PMI using as-built data

Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to AJ7

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AJ7 CHECK FOR CORRECT SCCM (STEERING COLUMN CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the SCCM connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/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 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, INSTALL a new SCCM. REFER to: Steering Column Control Module (SCCM) .

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.