DTC U0100-00: F-CAN Communication With PCM/TCM Malfunction DTC U0122-00: F-CAN Communication With VSA Modulator-Control Unit Malfunction DTC U0131-00: F-CAN Communication With EPS Malfunction DTC U0151-00: F-CAN Communication With SRS Malfunction
Refer to the DTC code shown on the display, and then inspect the connectors and terminals based on the instructions in the table below.
These DTC(s) may be stored due to the power/ground circuit failure of the appropriate transmitting control unit. Before this troubleshooting, check the power/ground circuit of the appropriate transmitting control unit first.
DTC Description
DTC
Freeze Frame
U0100-00 F-CAN Communication With PCM/TCM Malfunction
U0122-00 F-CAN Communication With VSA Modulator-Control Unit Malfunction
U0131-00 F-CAN Communication With EPS Malfunction
U0151-00 F-CAN Communication With SRS Malfunction
1.
Problem verification:
Problem verification
?1.
Turn the vehicle to the ON mode.
?2.
Clear the DTC with the HDS.
?3.
Turn the vehicle to the OFF (LOCK) mode, then to the ON mode.
?4.
Wait for 60 seconds or more.
?5.
Check for DTCs with the HDS.
DTC Description
DTC
Freeze Frame
U0100-00 F-CAN Communication With PCM/TCM Malfunction
U0122-00 F-CAN Communication With VSA Modulator-Control Unit Malfunction
U0131-00 F-CAN Communication With EPS Malfunction
U0151-00 F-CAN Communication With SRS Malfunction
Is DTC U0100-00, U0122-00, U0131-00, or U0151-00 indicated?
YES
The failure is duplicated. Go to step 2.
NO
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the transmitting control units, and adaptive damper control unit. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the freeze data/on-board snapshot.?
The F-CAN B_H wire and the F-CAN B_L wire are OK. Check for poor connections or loose terminals at the CAN gateway and the adaptive damper control unit. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or replace the adaptive damper control unit.?
NO
Repair an open in the F-CAN B_H wire and/or the F-CAN B_L wire between the CAN gateway and the adaptive damper control unit.?
5.
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, B
U0122-00
VSA modulator-control unit
A, B
U0131-00
EPS control unit
B
U0151-00
SRS unit
B
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 6.
U0100-00: PCM is Not Available for Bus B
Go to step 7.
U0122-00: VSA modulator-control unit is Not Available for Bus A
Go to step 6.
U0122-00: VSA modulator-control unit is Not Available for Bus B
Go to step 7.
U0131-00: EPS control unit is Not Available for Bus B
Go to step 7.
U0151-00: SRS unit is Not Available for Bus B
Go to step 7.
6.
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).
NOTE: Before disconnecting the PCM connector, jump the SCS line with the HDS, and wait more than 1 minute.
DTC
Connector
-
CAN gateway 16P connector
U0100-00
PCM connector No. 2 (58P)
U0122-00
VSA modulator-control unit 46P connector
?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
The F-CAN A_H wire and the F-CAN A_L wire are OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting.
According to the detected DTC on the following table, substitute or replace the correspond control unit.?
The F-CAN B_H wire and the F-CAN B_L wire are OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting.
According to the detected DTC on the following table, substitute or replace the correspond control unit.?
