CAN Time-Out Tilt/Tele

Component Location

General Description

This is DTC which is related with communication error between IPM and other units.
(** Control Units : IPM(Inter Panel Module), FAM(Front Area Module), PDM(Power Distribution Module), DDM(Drive Door Module), ADM(Assist Door Module), CLU(Cluster), PSM(Power Seat Module), SCM(Steering Control Module), RAM(Rear Area Module), SMK(Smart Key)
*1 CAN (Controller Area Network) : CAN is serial bus communication type which links not only communication system but also control units each other.
*2 LIN (Local Interconnect Network) : LIN is serial communication type which is used in electrical control system.






DTC Description

This code is outputted when IPM can't receive data from SCM by CAN Line for 10 sec.

DTC Detecting Condition





Diagnostic Circuit Diagram














Signal Waveform & Data








Fig 1) Signal waveform of CAN Low and HIGH
Fig 2) CAN BUS VOLTAGE LEVEL (LOW SPEED CAN)

Scantool Data Analysis

1. Connect GDS.
2. IG "ON" and engine "OFF".
3. Select "DTC Analysis" mode.
4. After erase DTC, keep the vehicle condition within "the enable conditions" .




5. Is the same DTC occurred again?






Terminal and Connector Inspection

1. Many malfunctions in the electrical system are caused by poor harness(es) and terminals. Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.
2. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
3. Has a problem been found?






Signal Circuit Inspection

1. Check CAN high circuit
(1) IG "ON" & ENG "OFF"
(2) Connect GDS and select Scope meter function.
(3) Measure signal waveform of PSM CAN High line.

Specification :Refer to signal waveform and data


(4) Is the measured signal waveform of CAN high circuit normal ?





2. Check CAN Low circuit
(1) IG "ON" & ENG "OFF"
(2) Connect GDS and select Scope meter function.
(3) Measure signal waveform of PSM CAN Low line.

Specification :Refer to signal waveform and data


(4) Is the measured signal waveform of CAN low circuit normal ?






Component Inspection

Check internal errors of CAN communication units.
1. Connect GDS.
2. IG "ON" and engine "OFF".
3. Select "DTC Analysis" mode.
4. Disconnect PSM and monitor DTC to find the cause.
5. Is the code erased?






Verification of Vehicle Repair

After a repair, it is essential to verify that the fault has been corrected.
1. Connect scan tool and select "DTC Analysis" mode.
2. Clear the DTCs and Operate the vehicle within DTC Enable conditions in General information.
3. Is any DTC outputted again?