U0319

1UR-FSE ENGINE CONTROL SYSTEM: SFI SYSTEM: U0319: Software Incompatible with Steering Effort Control Module or Internal Control Module EEPROM Error
U0319 - Software Incompatible with Steering Effort Control Module or Internal Control Module EEPROM Error

DESCRIPTION

The sport package information sent by the steering control ECU via CAN communication is stored in the EEPROM of the ECM. If the sport package information stored in the EEPROM is abnormal or CAN communication with the steering control ECU stops, the ECM stores a DTC.





*1: The sport package information is stored in the ECM the first time the engine switch is turned on (IG) after the ECM is replaced. This takes approximately 3 seconds to complete.

HINT
DTC U0319 is stored when the engine switch is turned off while the ECM is storing the sport package information.

If the vehicle is driven with DTC U0319 stored, the ECM and TCM operate as if the vehicle did not have the sport package. If the ECM failed to store the sport package information or when the information needs to be stored again, perform "Shift Control Synchronization" with the Techstream.

INSPECTION PROCEDURE

PROCEDURE

1. CHECK FOR ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC U0319)

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG) and turn the Techstream on.

(c) Enter the following menus: Powertrain / Engine / Trouble Codes.

(d) Read the DTCs.

Result





HINT
If any DTCs other than U0319 are output, troubleshoot those DTCs first.

B -- GO TO DTC CHART SFI System
A -- Continue to next step.

2. PERFORM SHIFT CONTROL SYNCHRONIZATION

(a) Perform Shift Control Synchronization Programming and Relearning.

NEXT -- Continue to next step.

3. CHECK WHETHER DTC OUTPUT RECURS (DTC U0319)

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG) and turn the Techstream on.

(c) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.

(d) Turn the engine switch on (IG) and wait for 3 seconds.

(e) Enter the following menus: Powertrain / Engine / Trouble Codes.

(f) Read the DTCs.

Result





B -- REPLACE ECM Removal

A -- END