DTC Code | DTC Name |
---|---|
U010E | Lost Communication with Reductant Control Module |
DESCRIPTION
The ECM sends and receives data to and from the urea pump control ECU via local CAN communication.
DTC Detection Drive Pattern | DTC Detection Condition | Trouble Area |
---|---|---|
1.6 seconds or more after turning the ignition switch to ON. | Communication stops between the ECM and the urea pump control ECU for 1.6 seconds or more. |
|
MONITOR DESCRIPTION
The ECM stores a DTC when a communication malfunction occurs between the ECM and urea pump control ECU.
WIRING DIAGRAM
INSPECTION PROCEDURE
Note
Inspect the fuses of circuits related to this system before performing the following inspection procedure.
Tech Tips
Read freeze frame data using the GTS. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, and other data from the time the malfunction occurred.
PROCEDURE
CHECK DTC OUTPUT
Connect the GTS to the DLC3.
Turn the ignition switch to ON and turn the GTS on.
According to the display on the GTS, select "Health Check".
Check for currently output system DTCs.
Result | ||||||
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Tech Tips
*: If any other DTCs are output, perform troubleshooting for those DTCs first.
B |
GO TO DTC CHART Click here |
A |
CHECK HARNESS AND CONNECTOR (UREA PUMP CONTROL ECU - ECM)
Disconnect the urea pump control ECU connector.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
NG |
REPAIR OR REPLACE HARNESS AND CONNECTOR |
OK |
CHECK UREA PUMP CONTROL ECU (BATT TERMINAL)
*a | Front view of wire harness connector (to Urea Pump Control ECU) |
Disconnect the urea pump control ECU connector.
Measure the voltage according to the value(s) in the table below.
Standard Voltage | ||||||
---|---|---|---|---|---|---|
|
NG |
REPLACE UREA PUMP CONTROL ECU Click here |
OK |
CHECK DCU RELAY
Inspect the DCU relay Click here.
NG |
REPLACE DCU MAIN RELAY (DCU) |
OK |
CHECK UREA PUMP CONTROL ECU (UREL TERMINAL)
Remove the DCU relay from the instrument panel relay block.
Turn the ignition switch to ON.
Measure the voltage according to the value(s) in the table below.
Standard Voltage | ||||||
---|---|---|---|---|---|---|
|
NG |
CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL RELAY BLOCK - UREA PUMP CONTROL ECU) Click here |
OK |
CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL RELAY BLOCK - UREA PUMP CONTROL ECU)
Remove the DCU relay from the instrument panel relay block.
Disconnect the urea pump control ECU connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | ||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
NG |
REPAIR OR REPLACE HARNESS AND CONNECTOR |
OK |
REPAIR OR REPLACE HARNESS AND CONNECTOR (INSTRUMENT PANEL RELAY BLOCK - BATTERY)
CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL RELAY BLOCK - UREA PUMP CONTROL ECU)
Remove the DCU relay from the instrument panel relay block.
Disconnect the urea pump control ECU connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | |||||||||
---|---|---|---|---|---|---|---|---|---|
|
NG |
REPAIR OR REPLACE HARNESS AND CONNECTOR |
OK |
REPLACE UREA PUMP CONTROL ECU Click here