C2361

Code

Generic C — Chassis

Right Rear Wheel Speed Sensor Circuit — Intermittent/No Signal

Brand: Generic

Type: C — Chassis

Views: UK: 20 EN: 32 RU: 20

AI status

Completed

ready

Completed 100%

Page language: EN

Causes

Damaged or contaminated right rear wheel speed sensor
Broken, chafed or corroded wiring or connector between sensor and ABS module
Loose, bent or corroded connector pins
Damaged or missing tone ring (reluctor) or excessive air gap between sensor and tone ring
Wheel bearing failure allowing sensor/tone ring misalignment
Water or debris intrusion at sensor or connector causing intermittent contact

Symptoms

ABS warning lamp and/or traction/stability warning illuminated
Intermittent or persistent ABS/TC intervention or disabled ABS
Reduced or inconsistent wheel speed reading for right rear shown on scan tool
ABS/ESC warnings may appear only while driving or when hitting bumps
Possible noise or roughness from the rear wheel (if bearing or tone ring damaged)

What to check

Retrieve and record all stored ABS/traction codes and freeze frame data
Visually inspect right rear sensor, wiring and connector for damage, corrosion or contamination
Compare live wheel speed values at key-on and while rolling vehicle using a scan tool — watch for loss or dropouts on right rear
Perform a wiggle test on the harness while monitoring live data to reproduce intermittent behavior
Inspect tone ring (reluctor) for missing teeth, heavy corrosion, or excessive runout
Check sensor mounting and air gap; confirm sensor is secured and not contacting tone ring

Signal parameters

Passive (VR) sensor resistance typically ~500–2,500 Ω (manufacturer specific) — open circuit indicates failed sensor
VR sensor AC output: increases with wheel speed; may be a few hundred mV to several volts peak-to-peak at road speeds
Active (Hall) sensor: reference supply usually ~5 V; signal is square or pulse 0–5 V or ~0.5–4.5 V depending on design
Pulse frequency should increase smoothly with wheel speed and match other wheels proportionally
Exact resistance, voltage and frequency specs are vehicle/manufacturer specific — consult service data

Diagnostic algorithm

Safety first: park on level surface, chock wheels, lift vehicle with jack and support on stands before working at wheel.
Scan tool: record C2361 and any related codes, view live wheel speed data (key on and while rotating wheel). Note behavior and when code sets (static, intermittent, driving, cornering, bump).
Visual: inspect right rear sensor, connector, harness, and tone ring for obvious damage, grease, corrosion or foreign material. Check sensor mounting and air gap. Repair obvious damage.
Wiggle test: with scan tool monitoring wheel speed, gently move harness/connector and suspension to try to reproduce signal loss. If the signal drops with movement, suspect wiring/connector fatigue.
Electrical checks: disconnect sensor and inspect pins. Measure sensor resistance (passive) or check reference and ground (active). With wheel rotated, measure AC output for VR or square wave for Hall sensor. Compare to manufacturer values or to another wheel as a reference.
Continuity and shorts: check continuity between sensor connector and ABS module; check for short to ground or battery. Repair wires or connectors as needed.
Tone ring/hub: inspect tone ring for missing/damaged teeth, heavy corrosion or magnetic debris; check wheel bearing for play that could change gap. Replace damaged parts.
Repair: replace sensor, repair harness or connector, clean or replace tone ring/hub/bearing as indicated. Use dielectric grease in connector if specified.
Clear codes and road test: erase codes, drive to verify the fault does not return and that wheel speed readings are steady and match other wheels. Re-scan for pending codes.
Note: If electrical checks pass and harness is good but problem persists, consider ABS control module input fault and consult manufacturer procedures.

Likely causes

Corroded connector at the right rear sensor
Wiring rubbed through and shorting when suspension moves (intermittent)
Contaminated or damaged tone ring on hub or axle
Failed wheel speed sensor (open, short or intermittent internal failure)

Fault status

⚠️ Status

Right Rear Wheel Speed Sensor Circuit — Intermittent/No Signal. ABS/traction control may be reduced or disabled. Inspect sensor, connector, harness, tone ring and wheel bearing; repair any damaged components and clear codes.

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 0.5 - 2.0 hours