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Home / DTC / C1653 — CAN time-out Cluster for SCC (Check Cluster) | CAN Time-out Cluster for SCC

C1653 — CAN time-out Cluster for SCC (Check Cluster) | CAN Time-out Cluster for SCC

Detailed page for trouble code C1653.

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C1653

HYUNDAI C — Chassis

CAN time-out Cluster for SCC (Check Cluster) | CAN Time-out Cluster for SCC

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

Causes

  • Open or short in CANH/CANL wiring between cluster and SCC
  • Poor or corroded connector pins at cluster, SCC or junctions
  • Loss of power or ground to cluster or SCC
  • Failed SCC or instrument cluster module
  • Missing/incorrect CAN termination (open/failed resistor)
  • Intermittent wiring damage (chafing, rodent, water intrusion)

Symptoms

  • Instrument cluster warning or communications fault message
  • Smart Cruise Control functions unavailable or disabled
  • Loss of speedometer/odometer or related instrument messages (intermittent)
  • Cruise control fault indicator or inability to engage cruise
  • Other modules showing related communication errors or limp behavior

What to check

  • Read and record all stored and pending codes from all modules with a capable scan tool
  • Visual inspection of connectors and wiring at the cluster, SCC and intermediate junctions for corrosion, damage or looseness
  • Verify power and ground supplies to both the instrument cluster and SCC (voltage and ground integrity)
  • Check CAN bus idle voltages at the cluster and SCC (CANH and CANL) with ignition ON
  • Measure bus termination resistance (expected ~60 ohms across CANH-CANL with power off)
  • Attempt to communicate with SCC and cluster via scan tool; note presence/absence of live data

Signal parameters

  • CAN idle (recessive) common-mode voltage: ~2.5 V on CANH and CANL
  • CAN dominant differential: CANH ~3.5 V, CANL ~1.5 V (approximate)
  • Bus resistance: ~60 ohms between CANH and CANL (two 120Ω terminators in parallel)
  • Expected message frequency: depends on parameter (tens to hundreds of ms); code indicates messages not received within manufacturer timeout window

Diagnostic algorithm

  1. Connect a professional scan tool and record all related DTCs from the cluster, SCC and gateway modules. Note freeze-frame and live data availability.
  2. Clear codes and see if C1653 returns; attempt to reproduce symptom while monitoring CAN traffic for missing frames.
  3. Perform a visual inspection of connectors and harnesses at instrument cluster, SCC, junction blocks and any splice points. Repair corroded or loose connectors.
  4. Verify both modules have correct power and ground voltages. Check related fuses and relays.
  5. With ignition ON, measure CANH and CANL voltages at both the cluster and SCC and compare. Look for proper recessive and dominant levels or signs of short to battery/ground.
  6. With vehicle power off, measure resistance between CANH and CANL near each end to confirm ~60Ω. If open or out of range, isolate segment and locate open/failed terminator.
  7. If bus voltages and resistance are acceptable, use a diagnostic tool or oscilloscope to observe CAN frames while exercising the system; confirm whether SCC transmits expected messages.
  8. Isolate fault by disconnecting other nonessential modules or dividing the bus to find the segment causing the timeout. Re-test after each change.
  9. If a specific connector or harness is found faulty, repair or replace and retest. If a module does not communicate while powered and grounded correctly, consider module replacement or reprogramming per factory procedures.
  10. After repair, clear codes, verify normal communication, and road test to confirm the fault does not return.

Likely causes

  • Corroded/loose connector at instrument cluster or SCC
  • Damaged CAN pair (open or short to ground/ battery) in harness
  • Lost module power or ground (blown fuse, disconnected connector)
  • Failed SCC or cluster module
  • Faulty termination or network interference causing message loss

Fault status

⚠️ Status
CAN time-out: instrument cluster did not receive expected messages from SCC within the configured timeout interval — communication fault between cluster and SCC.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0 - 3.0 hours

Similar codes

U0100 U0073 U0140 U0155 U0121
371

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