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Home / DTC / C2510 — Chassis Control Module Communication Error

C2510 — Chassis Control Module Communication Error

Detailed page for trouble code C2510.

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C2510

Generic C — Chassis

Chassis Control Module Communication Error

Brand: Generic
Type: C — Chassis
Views: UK: 2 EN: 3 RU: 2
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Page language: EN

Causes

  • Faulty or unresponsive Chassis Control Module
  • Broken, shorted or corroded wiring/connectors on CAN high/low or module power/ground
  • Blown fuse or faulty power supply/relay to the CCM
  • CAN bus short (to battery/ground) or open circuit
  • Poor/chafed ground or multiple-ground fault
  • Incorrect module programming or firmware mismatch after replacement

Symptoms

  • ABS, traction or stability warning lamps illuminated
  • Loss or intermittent function of chassis features (electronic parking brake, steering assist, stability control)
  • Instrument cluster displays communication or module missing messages
  • Scanner reports no communication with CCM or timeouts
  • Intermittent/flickering warnings or features working intermittently

What to check

  • Read and record all stored and pending DTCs with a capable scan tool (include manufacturer U/C codes). Note freeze frame and occurrence conditions.
  • Check battery voltage (key ON, engine OFF) and state of charge; low voltage can cause communication faults.
  • Visually inspect CCM connector and harness for corrosion, pin damage, water intrusion or rodent chew.
  • Check related fuses and relays for the CCM power feed; verify presence of ignition/switched power at the module.
  • Perform wiggle/pressure test on harness and connectors while monitoring bus traffic with a scanner or oscilloscope.
  • Measure CAN bus idle voltages at the CCM connector (CAN H and CAN L) and measure bus termination resistance (~60 ohms across H-L).

Signal parameters

  • Vehicle battery voltage: 11–14.5 V (key ON/engine running as applicable)
  • CAN High (recessive idle): about 2.5 V (typical range 2.0–3.0 V)
  • CAN Low (recessive idle): about 2.5 V (typical range 2.0–3.0 V)
  • CAN High (dominant): ~3.5 V, CAN Low (dominant): ~1.5 V (differential ~2.0 V)
  • Bus termination resistance (CAN H to CAN L with key OFF): ~60 ohms (two 120-ohm terminators in parallel)
  • Power/ground resistance to module: preferably

Diagnostic algorithm

  1. Record all codes and freeze-frame data with a manufacturer-capable scan tool. Note any U-codes indicating network issues.
  2. Verify battery voltage and system supply. Charge or replace battery if low and retest.
  3. Inspect CCM connector and harness for damage, corrosion or moisture. Repair any physical faults.
  4. Check fuses/relays supplying the CCM for continuity and verify supply voltage at the module pins (key ON).
  5. With key ON (engine OFF), measure CAN H and CAN L at the CCM connector. Confirm idle voltages and that both lines are present.
  6. Measure resistance between CAN H and CAN L (expect ~60 ohms). If open or shorted, trace wiring for breaks or shorts to ground/battery.
  7. Use an oscilloscope or bidirectional scan tool to confirm bus traffic and check for noise or dominant faults while exercising vehicle functions.
  8. Perform a wiggle test on relevant harness sections while watching live data or bus traffic to reproduce fault.
  9. If wiring and supplies are good, attempt to communicate with CCM using OEM tools. Check module software/calibration version and reflash or reprogram per OEM procedures if required.
  10. If CCM is confirmed faulty after verifying wiring, power and programming, replace or repair the module per factory service instructions, then clear codes and road test to confirm repair.
  11. Document repairs and retest for intermittent faults; consider extended road test if fault was intermittent.

Likely causes

  • Loose or poor ground/power to the CCM
  • Open or short on the CAN high/low wiring near the CCM
  • Intermittent connector/corrosion at CCM connector
  • Failed CCM requiring repair or replacement

Fault status

⚠️ Status
Chassis Control Module communication fault detected — CCM not responding or communication on the chassis network is impaired.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0-3.5 hours

Similar codes

U0100 U0073 U0140 U0121 C1210
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