Pinpoint Test R: DTC U049A:68

Remote Function Actuator (RFA) Module

Pinpoint Tests

Pinpoint Test R: DTC U049A:68

Refer to Wiring Diagram Set 14, Module Communications Network for schematic and connector information. Diagrams By Number

Normal Operation

The Remote Function Actuator (RFA) module and the Driver Seat Module (DSM) communicate using the Medium Speed Controller Area Network (MS-CAN). Messages are exchanged between the modules on the MS-CAN.

- DTC U049A:68 (Invalid Data Received From "Door Control Module A": Event Information) - set by the RFA module if more than 2500 ms of the
Driver_Lock_Switch_Status with data is invalid from the DSM over the MS-CAN.

This pinpoint test is intended to diagnose the following:

- Module communication
- DSM
- RFA module



PINPOINT TEST R: DTC U049A:68

NOTE: The ignition must be OFF to carry out the RFA module self-test.

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R1 VERIFY CUSTOMER CONCERN


- Ignition ON.
- Verify that there is an observable symptom present.
- Is an observable symptom present?

Yes
GO to R2.

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

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R2 CHECK THE COMMUNICATION NETWORK


- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Network Test.
- Carry out the network test.
- Does the IPC pass the network test?

Yes
GO to R3.

No
REFER to Information Bus.

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R3 RETRIEVE THE RECORDED DTCs FROM THE SELF-TEST


- Check for recorded RFA module DTCs from the self-test.
- Is DTC U3000:49 or DTC U3003:62 recorded?

Yes
For DTC U3000:49, REFER to DTC Charts. Remote Function Actuator (RFA) Module

For DTC U3003:62, REFER to Antitheft and Alarm Systems.

No
GO to R4.

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R4 RECHECK THE RFA MODULE DTCs


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

- Clear the DTCs. Repeat the RFA module self-test.
- Is DTC U049A:68 still present?

Yes
INSTALL a new RFA module. REFER to Remote Function Actuator (RFA) Module Remote Function Actuator (RFA) Module. RESET the parameters in both the RFA module and the PCM. REFER to Passive Anti-Theft System (PATS) Parameter Reset - Intelligent Access (IA) in Antitheft and Alarm Systems. TEST the system for normal operation. With Intelligent Access (IA)

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

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