Toggle Side Panel

Shopping Cart

No products in the basket.

Shopping Cart

No products in the basket.

Close search
Home / DTC / C165900 — CAN Time-Out SAS

C165900 — CAN Time-Out SAS

Detailed page for trouble code C165900.

34,481codes
59brands
11,925generic
22,556specific
All codes P-codes (Powertrain) B-codes (Body) C-codes (Chassis) U-codes (Network/User) Tesla Alerts
Reset
Code

C165900

HYUNDAI C — Chassis

CAN Time-Out SAS

Brand: HYUNDAI
Type: C — Chassis
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Open or short in CAN bus wiring between SAS module and CAN network
  • Loose, corroded or disconnected connector at SAS module or junctions
  • Failed SAS control module
  • Blown fuse or loss of power/ground to SAS module
  • Faulty termination resistor(s) or bus short to battery/ground
  • Other module on the same CAN bus causing bus-off condition or excessive traffic

Symptoms

  • SAS-related warning lamp or steering angle warning illuminated
  • ABS/ESC/Traction Control warnings may also be present or those systems disabled
  • No steering angle data displayed by scan tool for the SAS module
  • Loss of features that use steering angle (lane-keep, stability control, adaptive systems)
  • Intermittent communication faults or stored multiple network communication codes

What to check

  • Read all stored and pending codes from all control modules on both CAN buses
  • Confirm presence of SAS module in scan tool network (attempt to communicate)
  • Visually inspect SAS connectors and wiring for corrosion, damage, water intrusion, or recent repairs
  • Check fuses and power/ground at SAS module connector for proper battery voltage and ground continuity
  • Measure CANH and CANL voltages with key ON (see signal_params) and check for expected idle levels
  • Measure termination resistance between CANH and CANL (approx. 60 ohms for a properly terminated two-terminator bus)

Signal parameters

  • CAN bus idle voltages: CANH ≈ 2.5 V, CANL ≈ 2.5 V (recessive state)
  • Dominant state: CANH typically rises ≈3.5 V and CANL falls ≈1.5 V (differential ≈2.0 V)
  • Termination resistance: ≈60 Ω measured between CANH and CANL with ignition OFF (two 120 Ω terminators in parallel)
  • Data rate: commonly 500 kbps for powertrain/ABS/ESC networks (some vehicles use 250 kbps or other rates)
  • SAS module supply: battery voltage on power pin with key ON (~12 V) and good ground continuity

Diagnostic algorithm

  1. Retrieve and record all fault codes and freeze-frame data from all modules; note related U-codes on the CAN network
  2. Attempt communication with the SAS module using a manufacturer-level scan tool; note if the module is present and responding
  3. Visually inspect SAS connector and harness for damage, corrosion, pins pushed back, or water ingress; repair as needed
  4. Check fuses and verify battery voltage at the SAS module power pin and ground continuity to chassis
  5. Measure CANH and CANL voltages at the SAS connector with a DMM (and with an oscilloscope if available) to verify recessive/dominant levels and signal quality
  6. Measure termination resistance between CANH and CANL with ignition OFF (expect ≈60 Ω). If open or far from expected, locate missing/failed terminator or shorted branch
  7. Isolate the SAS module by disconnecting it and checking if the rest of the bus recovers (careful: some vehicles will generate additional codes when a module is disconnected)
  8. If wiring and bus parameters are good but the SAS module does not respond, consider replacing or reprogramming the SAS module and then perform required steering angle sensor calibration/zero-point alignment
  9. After repair or module replacement, clear codes and perform road test and calibration procedures per manufacturer instructions to confirm return to normal operation

Likely causes

  • Disconnected or corroded connector at SAS module
  • Damaged CANH/CANL wires (pinch, chafe, rodent damage)
  • Missing or failed termination resistor(s) (~60 Ω across CANH/CANL)
  • SAS module lost power/ground due to blown fuse or poor ground connection
  • SAS control module internal failure after a recent crash or module replacement

Fault status

⚠️ Status
CAN Time-Out — Steering Angle Sensor (SAS) module communication not detected on CAN bus; SAS messages not received within timeout window.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0-3.0 hours

Similar codes

U0073 U0100 U0121 U0155 U0077
371

Browse 371 HYUNDAI manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

HYUNDAI

Your experience will help others
+100 karma for a short comment :)
Keep it short and practical. Up to 500 characters.
Send to email

Report

Harassment or bullying behavior
Contains mature or sensitive content
Contains misleading or false information
Contains abusive or derogatory content
Contains spam, fake content or potential malware

Block Member?

Please confirm you want to block this member.

You will no longer be able to:

  • See blocked member's posts
  • Mention this member in posts
  • Invite this member to groups
  • Message this member
  • Add this member as a connection

Please note: This action will also remove this member from your connections and send a report to the site admin. Please allow a few minutes for this process to complete.

Report

You have already reported this .