DTC U0100-00: Lost Communication With The PCM (PGM-FI System) DTC U0101-00: Lost Communication With The PCM/TCM DTC U0122-00: Lost Communication With The VSA Modulator-Control Unit DTC U0126-00: Lost Communication With The Steering Angle Sensor DTC U0131-00: Lost Communication With The EPS Control Unit DTC U0155-00: Lost Communication With The Gauge Control Module
Refer to the DTC code shown on the display, and then inspect the connectors and terminals based on the instructions in the table below.
According to the detected DTC(s), check for the power circuit and the ground circuit of the control unit which cannot communicate with the multipurpose camera unit.
DTC Description
DTC
Freeze Frame
U0100-00 Lost Communication With The PCM (PGM-FI System)
U0101-00 Lost Communication With The PCM/TCM
U0122-00 Lost Communication With The VSA Modulator-Control Unit
U0126-00 Lost Communication With The Steering Angle Sensor
U0131-00 Lost Communication With The EPS Control Unit
U0155-00 Lost Communication With The Gauge Control Module
Check for poor connections or loose terminals at the CAN gateway and the multipurpose camera unit. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting. If they are OK, replace the multipurpose camera unit.?
NO
Repair an open in the F-CAN B_H wire or the F-CAN B_L wire between the multipurpose camera unit and the CAN gateway.?
4.
F-CAN circuit communication check (Transmitting control unit):
F-CAN circuit communication check (Transmitting control unit)
?1.
Select the FUNCTION TEST in the CAN gateway with the HDS, then select the F-CAN Bus Connected Unit Check.
?2.
According to the detected DTC on the following table, make sure that the transmitting control unit detects the CAN gateway Bus channel(s) normally.
DTC
Transmitting control unit
Detected CAN gateway Bus channel(s) at normal
U0100-00
PCM
A
U0101-00
PCM
A
U0122-00
VSA modulator-control unit
B
U0126-00
Steering angle sensor
B
U0131-00
EPS control unit
B
U0155-00
Gauge control module
A
Is it detected normally?
Detected normal
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the transmitting control unit and the CAN gateway.?
U0100-00: PCM is Not Available for Bus A
Go to step 5.
U0101-00: PCM is Not Available for Bus A
Go to step 5.
U0122-00: VSA modulator-control unit is Not Available for Bus B
Go to step 6.
U0126-00: Steering angle sensor is Not Available for Bus B
Go to step 6.
U0131-00: EPS control unit is Not Available for Bus B
Go to step 6.
U0155-00: Gauge control module is Not Available for Bus A
Go to step 5.
5.
Open wire check (F-CAN A_H line, F-CAN A_L line):
Open wire check (F-CAN A_H line, F-CAN A_L line)
?1.
Turn the vehicle to the OFF (LOCK) mode.
?2.
According to the detected DTC on the following table, disconnect the transmitting control unit connector(s).
DTC
Connector
CAN gateway 16P connector
U0100-00
PCM connector A (51P)
U0101-00
PCM connector A (51P)
U0155-00
Gauge control module 32P connector
NOTE: Before disconnecting the PCM connector A (51P), jump the SCS line with the HDS, and wait more than 1 minute.
?3.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
CAN gateway 16P connector: disconnected
Transmitting control unit connector(s) for indicated DTCs: disconnected
DTC
Circuit name
Test point 1 (Receiving control unit) (female terminals)
According to the detected DTC on the following table, substitute, or replace the correspond control unit.?
DTC
Operation for transmitting control unit
U0100-00
Check for poor connections or loose terminals at the CAN gateway and the PCM. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or substitute a known-good PCM, then recheck. If they are OK, replace the original PCM.?
U0101-00
Check for poor connections or loose terminals at the CAN gateway and the PCM. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or substitute a known-good PCM, then recheck. If they are OK, replace the original PCM.?
According to the detected DTC on the following table, substitute, or replace the correspond control unit.?
DTC
Operation for transmitting control unit
U0122-00
Check for poor connections or loose terminals at the CAN gateway and the VSA modulator-control unit. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting. If they are OK, replace the VSA modulator-control unit.?