Pinpoint Test R: Abs Module Communication Concern With CCM (Cruise Control Module)

Normal Operation and Fault Conditions

The CCM communicates with the IPMA over a CAN. The IPMA sends the CCM messages to the ABS module over the FD-CAN. If the ABS module does not receive these messages within the allotted time frame or if the messages contain invalid data, the module sets a DTC. This can be due to a CCM failure, a circuit failure on the network or an excessive load on the network. For information on the messages sent to the ABS module by the CCM and IPMA, REFER to: Anti-Lock Brake System (ABS) and Stability Control - System Operation and Component Description .

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
ABS U0405:86	Invalid Data Received From Cruise Control Module: Signal Invalid	Sets when the cruise control messages from the CCM contain invalid or faulty information.
ABS U2107:00	Collision Mitigation By Braking: No Sub Type Information	This DTC sets when the collision deceleration message from the is sent too often or the duration of the message is too long.

Possible Causes

Network communication concern
CCM

R1 CHECK THE IPMA (IMAGE PROCESSING MODULE A) COMMUNICATION NETWORK

Press the Read Vehicle Information button to view the results of the modules communicating on the network.

Press Read Vehicle Information button to retrieve DTC's from the vehicle.
NOTE: DTC's may be displayed from previous diagnostic actions.

Read vehicle information.

Did the IPMA pass the Network Test?

Yes	RETRIEVE and RECORD all IPMA DTC's. REFER to: Lane Keeping System . If there are no DTC's in the IPMA. GO to R2

No	DIAGNOSE the no communication concern with the IPMA. REFER to: Communications Network in the appropriate Module Communications Network article.

R2 CHECK THE MODULE COMMUNICATION

Ignition ON.

Review the results of the modules communicating on the network from the previous step.

Does the CCM pass the Network Test?

Yes	RETRIEVE and RECORD all CCM DTC's. REFER to: Cruise Control . If there are no DTC's in the CCM, GO to R3

No	DIAGNOSE the CCM does not communicate with the diagnostic scan tool. REFER to: Communications Network in the appropriate Module Communications Network article.

R3 RECHECK FOR THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE DTCS

Clear the ABS module DTC's.

Put the ABS module in sleep mode by performing the following steps:
- With ALL doors closed, set the ignition from ON to OFF.
- Disconnect the diagnostic scan tool.
- Open the door, exit the vehicle and close the door.
- Wait a minimum of 90 seconds for the ABS module to enter sleep mode.

Ignition ON.

Carry out the ABS module self-test.

Record all ABS module DTC's.

Are any of the DTC's listed in the DTC Fault Trigger Conditions Table retrieved again?

Yes

GO to R4

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.

R4 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U3003:16 AND U3003:17
- Review the results from the ABS module self-test.
Is DTC U3003:16 or U3003:17 present?

Yes For DTC U3003:16: GO to Pinpoint Test A For DTC U3003:17: GO to Pinpoint Test F

No GO to R5

R5 CHECK FOR DTCS IN THE IPMA (IMAGE PROCESSING MODULE A)
- Carry out the IPMA self-test.
Are any DTC's present?

Yes DIAGNOSE the IPMA DTC. REFER to: Lane Keeping System .

No GO to R6

R6 CHECK FOR DTCS IN THE CCM (CRUISE CONTROL MODULE)
- Carry out the CCM self-test.
Are any DTC's present?

Yes DIAGNOSE the CCM DTC's. REFER to: Cruise Control .

No GO to R7

R7 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 IPMA, CCM or ABS module. If recent service history is found:
- Verify the correct replacement module was installed. HVBOM may be used to verify correct part fitment.
- Verify the configuration of replacement module was correct. Re-configure the 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.

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

Is the observable symptom still present?

Yes

GO to R8

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

R8 CHECK FOR COMMUNICATION DTCS IN OTHER MODULES
- Press Read Vehicle Information button to retrieve DTC's from the vehicle.
  NOTE: DTC's may be displayed from previous diagnostic actions.
- Read vehicle information.
Is DTC U0104:xx, U0405:xx or U2107:xx set in 1 or more modules in addition to the ABS module?

Yes GO to R9

No GO to R10

R9 CHECK FOR CORRECT CCM (CRUISE CONTROL MODULE) OPERATION

Put the ABS module in sleep mode by performing the following steps:
- With ALL doors closed, set the ignition from ON to OFF.
- Disconnect the diagnostic scan tool.
- Open the door, exit the vehicle and close the door.
- Wait a minimum of 90 seconds for the ABS module to enter sleep mode.

Disconnect CCM connector C1582.

Disconnect ABS module connector C135.

Using a good light source, inspect all disconnected electrical connectors for the following:
- Corrosion - install new connector or terminal and clean the module pins
- Damaged or bent pins - install new terminals or pins
- Pushed-out pins - install new pins as necessary
- Spread terminals - install new terminals as necessary

Connect ABS module connector C135. Make sure the connector seats and latches correctly.

Connect CCM connector C1582. Make sure the connector seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes	CHECK OASIS for any 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 CCM. REFER to: CRUISE CONTROL MODULE (CCM) .

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.

R10 CHECK FOR CORRECT ABS (ANTI-LOCK BRAKE SYSTEM) OPERATION

Put the ABS module in sleep mode by performing the following steps:
- With ALL doors closed, set the ignition from ON to OFF.
- Disconnect the diagnostic scan tool.
- Open the door, exit the vehicle and close the door.
- Wait a minimum of 90 seconds for the ABS module to enter sleep mode.

Disconnect ABS module connector C135.

Disconnect CCM connector C1582.

Using a good light source, inspect all disconnected electrical connectors for the following:
- Corrosion - install new connector or terminal and clean the module pins
- Damaged or bent pins - install new terminals or pins
- Pushed-out pins - install new pins as necessary
- Spread terminals - install new terminals as necessary

Connect CCM connector C1582. Make sure the connector seats and latches correctly.

Connect ABS module connector C135. Make sure the connector seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

The HCU and ABS module are a single assembly known as the EBB unit. The OASIS for any service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. rn, INSTALL a new EBB unit. REFER to: Electric Brake Booster (EBB) . REFER to: Electric Brake Booster (EBB) - Full Hybrid Electric Vehicle (FHEV)/Plug-In Hybrid Electric Vehicle (PHEV) .

No	The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.