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Home / DTC / U1108 — Meter CAN timeout/Not equipped

U1108 — Meter CAN timeout/Not equipped

Detailed page for trouble code U1108.

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22,491specific
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Code

U1108

MITSUBISHI U — Network/User

Meter CAN timeout/Not equipped

Brand: MITSUBISHI
Type: U — Network/User
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Instrument cluster (meter) not responding or faulty
  • Module not fitted for this vehicle/configuration (NOT EQUIPPED)
  • Open, short, or high-resistance in CAN_H or CAN_L wiring
  • Loose, corroded or disconnected connectors at the meter or CAN junctions
  • Blown fuse or loss of power/ground to the meter
  • CAN bus termination missing or damaged (incorrect resistance)

Symptoms

  • Instrument cluster blank or partially nonfunctional (no speedometer, odometer, gauges)
  • Multiple CAN communication warning lights or errors on other modules
  • Loss of functions tied to cluster messages (lights, chimes, trip computer)
  • Intermittent or permanent DTCs related to other modules losing communication
  • Possible no-start or immobilizer related symptoms if cluster handles security

What to check

  • Read all stored and pending DTCs from all modules with a capable scan tool; note freeze/frame data
  • Verify whether the vehicle is supposed to be equipped with the meter (build sheet/option codes/VIN lookup)
  • Visually inspect fuses and relays related to instrument cluster power and ignition circuits
  • Inspect connectors at the instrument cluster and any nearby CAN junction connectors for corrosion, damage or looseness
  • Measure battery voltage and main grounds with engine off and key on
  • Measure CAN bus resistance between CAN_H and CAN_L (approx. 60 ohms with system powered) and check for shorts to ground/voltage

Signal parameters

  • CAN recessive voltage: ~2.5 V on both CAN_H and CAN_L (no dominant bits)
  • CAN dominant voltages: CAN_H ~3.5 V, CAN_L ~1.5 V (differential ~2 V) during active frames
  • Measured bus resistance: approx. 60 Ω between CAN_H and CAN_L (with ignition ON, two 120 Ω terminators in parallel)
  • Expected CAN data rate depends on network (commonly 250 kbps or 500 kbps) — verify per model
  • No periodic/expected meter CAN messages present when cluster times out

Diagnostic algorithm

  1. Confirm the DTC: Connect a professional scan tool, read U1108 and any related codes from all modules. Record occurrence conditions and freeze frame if available.
  2. Verify equipment: Check vehicle build sheet or VIN options to confirm whether the meter cluster should be fitted. If vehicle is not equipped, document and clear the code.
  3. Basic power/ground and fuse check: With key on, verify battery voltage at cluster power feed, check instrument cluster fuses, and verify good chassis/engine grounds.
  4. Visual inspection: Inspect meter connectors and wiring harness for corrosion, broken wires, pin damage or pushed-out terminals. Repair any obvious harness damage.
  5. Bus wiring checks: Measure resistance between CAN_H and CAN_L (expect ≈60 Ω). Check CAN_H and CAN_L for shorts to battery, ground, or each other when ignition off and on.
  6. Signal verification: Use an oscilloscope or CAN analyzer at the cluster connector to confirm CAN bus activity and proper voltage levels. Look for valid frames and absence of bus-off conditions.
  7. Isolate the fault: If bus is inactive or corrupted, disconnect the instrument cluster connector and observe whether bus activity is restored for other modules (helps locate a shorting/defective node).
  8. Repair/replace: Repair damaged wiring or connectors found. If the instrument cluster is confirmed faulty after isolation tests, replace or reflash per manufacturer procedure. Ensure new cluster is correctly coded/programmed if required.
  9. Clear codes and verify: After repairs, clear codes, verify the meter is communicating and re-check while exercising affected systems. Monitor for recurrence or intermittent faults.
  10. Escalation: If bus problems persist, inspect gateway/body ECU and other modules for network faults, and consider manufacturer technical bulletins or software updates.

Likely causes

  • Disconnected connector at instrument cluster
  • Damaged CAN wiring between cluster and gateway/ECU
  • Faulty instrument cluster electronics
  • Vehicle not equipped with that meter option (VIN/config mismatch)
  • Missing or incorrect CAN termination (open/short to chassis)

Fault status

⚠️ Status
Meter CAN timeout / Not equipped — instrument cluster did not respond on CAN within expected timeout or the meter module is not installed for this vehicle configuration.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0 - 3.0 hours

Similar codes

U0100 U0121 U0140 U0073 U1107
406

Browse 406 MITSUBISHI manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

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