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Home / DTC / C062D — ABS Valves Range/Performance

C062D — ABS Valves Range/Performance

Detailed page for trouble code C062D.

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Code

C062D

Generic C — Chassis

ABS Valves Range/Performance

Brand: Generic
Type: C — Chassis
Views: UK: 18 EN: 26 RU: 23
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Page language: EN

Causes

  • Open or shorted valve solenoid coil
  • Poor electrical connection at valve harness or connector
  • Faulty ABS valve/solenoid or hydraulic modulator assembly
  • Corroded or damaged wiring (short to power or ground)
  • Faulty ABS control module driver circuit
  • Low battery/poor power supply or blown fuse/relay

Symptoms

  • ABS warning lamp and/or traction/stability lamp ON
  • ABS activation unavailable or limited during braking
  • Brake pedal feel may be different (pulsation absent or abnormal)
  • Increased stopping distance under ABS activation conditions
  • Stored DTC(s) related to ABS valves or hydraulic system

What to check

  • Read and record all ABS and related codes and freeze frame data with a capable scan tool
  • Visually inspect ABS modulator, wiring harness, and connectors for damage, corrosion, water intrusion or bent pins
  • Check battery voltage (should be ~12.6 V resting, >11 V cranking) and relevant fuses/relays
  • Unlock and reconnect ABS connectors to confirm good contact (inspect terminals)
  • Backprobe valve connector and command valve with scan tool active test to observe behavior
  • Measure solenoid coil resistance at the valve(s) and compare to manufacturer spec

Signal parameters

  • Supply voltage to ABS module: ~11–14 V (vehicle dependent) — verify battery/system voltage before testing
  • Valve driver output: either switched 12 V or low-side switching to ground; may be PWM — duty cycle varies with ABS operation
  • Solenoid coil resistance: typically a few ohms to tens of ohms depending on design (consult vehicle service data)
  • Command frequency (if PWM): often between ~50–500 Hz depending on manufacturer — consult OEM spec
  • Cranking voltage should not drop below ~9–10 V during valve activation tests

Diagnostic algorithm

  1. Connect a capable ABS scan tool, read/record all DTCs and live data; clear codes and attempt to re-create C062D to capture freeze-frame values.
  2. Visually inspect ABS modulator assembly, valve harness and connectors for corrosion, water ingress or damage. Repair any obvious faults.
  3. Verify battery and power supply to ABS module; check fuses and relays. Repair as needed.
  4. With ignition on, backprobe the valve connector. Command valve ON/OFF with scan tool while monitoring voltage/current and compare to expected behavior.
  5. Measure solenoid coil resistance at the valve. If open/shorted or out of spec, replace the valve/solenoid or modulator cartridge as required.
  6. If coil resistances are OK, check the valve driver output at the ABS module pins for proper switching/PWM. If no output while the module commands it, suspect module driver fault or communication issue.
  7. Wiggle-test wiring and connectors while commanding valves to look for intermittent faults. Repair wiring or connectors as needed.
  8. If valve operation is electrically correct but hydraulic function is impaired, inspect/replace hydraulic modulator or valve assembly and perform proper bleeding procedure.
  9. After repairs, clear codes, perform ABS self-tests with scan tool and road-test in a safe area to confirm normal ABS function and that C062D does not return.

Likely causes

  • Corroded connector or pin causing intermittent connection
  • High-resistance or open solenoid coil in one or more ABS valves
  • Failed valve driver inside ABS control module
  • Hydraulic valve mechanically stuck due to contamination or internal wear

Fault status

⚠️ Status
ABS Valves Range/Performance — hydraulic valve(s) or their control circuit are not operating within expected parameters.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.5-3.0 hours

Similar codes

C0620 C062E C0605 C0271 C0235
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