Normal Operation and Fault Conditions

The cruise control system is controlled by the PCM. Vehicles equipped with adaptive cruise control also use a CCM to monitor the speed and distance set by the driver. With the ignition ON, the CCM sends messages to the ABS module over the HS-CAN 2. If the ABS module does not receive these messages within a certain time frame, the ABS module sets a DTC. For information on the messages sent to the ABS module by the CCM, refer to the Network Message Chart in Description and Operation of Anti-Lock Brake System (ABS) And Stability Control .

PPT R ABS MODULE DTC FAULT TRIGGER CONDITIONS

DTC	Description	Fault Trigger Conditions
U0104:00	Lost Communication With Cruise Control Module: No Sub Type Information	Sets when the ABS module detects any of the following CCM messages are missing: collision mitigation by braking deceleration, collision mitigation by braking precharge, adaptive cruise control deceleration or adaptive cruise control precharge.
U0405:41	Invalid Data Received From Cruise Control Module: General Checksum Failure	This DTC sets if the collision mitigation by braking deceleration message checksum is invalid.
U0405:82	Invalid Data Received From Cruise Control Module: Alive/Sequence Counter Incorrect/Not Updated	This DTC sets if the collision mitigation by braking deceleration message rolling counter is invalid.

Possible Causes

Wiring, terminals or connectors
Network communication concern
Battery or charging system concerns
CCM
ABS module

Fig 1: Antilock Braking System (ABS) Module Connector - C135

Courtesy of FORD MOTOR CO.

Harness Side

R1: CHECK THE COMMUNICATION NETWORK

Ignition ON, engine OFF.
Press the Read Vehicle Information button to view the results of the modules communicating on the network.
Retrieve the continuous memory DTCs.

Does the CCM pass the Network Test?

Yes	No
Go to R2.	DIAGNOSE the no communication with the CCM. REFER to Module Communications Network .

R2: RECHECK FOR THE ABS MODULE DTCS

Clear the ABS DTCs.
Ignition OFF.
Ignition ON, engine OFF.
Carry out the ABS self-test.

Is DTC U0104:xx or U0405:xx retrieved again?

Yes	No
Go to R3.	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

R3: CHECK FOR DTC U3003:16 AND U3003:17

Review the results from the ABS module self-test.

Is DTC U3003:16 or U3003:17 present?

Yes	No
For DTC U3003:16, Go to PINPOINT TEST A . For DTC U3003:17, Go to PINPOINT TEST F .	Go to R4.

R4: CHECK FOR DTCS IN THE CCM

Carry out the C-CM self-test.

Are any DTCs present?

Yes	No
DIAGNOSE the CCM DTCs. REFER to the appropriate Cruise Control article.	Go to R5.

R5: 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 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	No
Go to R6.	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

R6: CHECK FOR DTC U0100:XX OR U0401:XX SET IN OTHER MODULES

Retrieve the continuous memory DTCs.

Is DTC U0104:xx or U0405:xx set in 1 or more modules in addition to the ABS module?

Yes	No
Go to R7.	Go to R8.

R7: CHECK FOR CORRECT CCM OPERATION

Ignition OFF.
CCM connector disconnected.
NOTE: The battery must be removed to access the ABS module electrical connector.
Remove the battery. REFER to Charging System (Battery, Battery Mounting And Battery Cables) .
ABS Module connector disconnected. (C135)
Disconnect all in-line electrical connectors between the ABS module and the CCM.
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 all in-line electrical connectors between the ABS module and the CCM. Make sure the connectors seat and latch correctly.
ABS Module connector connected. (C135) Make sure the connector seats and latches correctly.
CCM connector connected. Make sure the connector seats and latches correctly.
Install the battery. REFER to Charging System (Battery, Battery Mounting And Battery Cables) .
Operate the system and determine if the concern is still present.

Is the concern still present?

Yes	No
INSTALL a new CCM. CHECK OASIS for any applicable TSBs. If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no TSBs address this concern, INSTALL a new CCM. REFER to the appropriate Cruise Control article.	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.

R8: CHECK FOR CORRECT ABS MODULE OPERATION

Ignition OFF.
NOTE: The battery must be removed to access the ABS module electrical connector.
Remove the battery. REFER to Charging System (Battery, Battery Mounting And Battery Cables) .
ABS Module connector disconnected. (C135)
CCM connector disconnected.
Disconnect all in-line electrical connectors between the ABS module and the CCM.
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 all in-line electrical connectors between the ABS module and the CCM. Make sure the connectors seat and latch correctly.
CCM connector connected. Make sure the connector seats and latches correctly.
ABS Module connector connected. (C135) Make sure the connector seats and latches correctly.
Install the battery. REFER to Charging System (Battery, Battery Mounting And Battery Cables) .
Operate the system and determine if the concern is still present.

Is the concern still present?

Yes	No
INSTALL a new ABS module. CHECK OASIS for any applicable TSBs. If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no TSBs address this concern, INSTALL a new ABS module. REFER to the ABS module Removal and Installation procedure in Anti-Lock Brake System (ABS) And Stability Control . ORDER a replacement ABS module and INCLUDE the RVC form. If this is a Ford repair, INCLUDE the RVC on the warranty claim form. When complete, SELECT the "X" in the top right corner to CLOSE this procedure.	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.

Yes

INSTALL a new ABS module.
CHECK OASIS for any applicable TSBs.
If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions.
If no TSBs address this concern, INSTALL a new ABS module.
REFER to the ABS module Removal and Installation procedure in Anti-Lock Brake System (ABS) And Stability Control .
ORDER a replacement ABS module and INCLUDE the RVC form.
If this is a Ford repair, INCLUDE the RVC on the warranty claim form.
When complete, SELECT the "X" in the top right corner to CLOSE this procedure.

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.