C1953

Code

MITSUBISHI C — Chassis

Acceleration sensor,Tire5

Brand: MITSUBISHI

Type: C — Chassis

Views: UK: 12 EN: 17 RU: 13

AI status

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Page language: EN

ABS/traction/stability or TPMS warning lamp illuminated
Reduced or altered operation of ABS, traction control or stability control
Inconsistent wheel/tire acceleration readings in diagnostic tool
Possible warning message for sensor or service reminder
No obvious driveability change in some cases (fault may be limited to sensor data)

Read stored DTCs and freeze frame with an OBD/diagnostic scanner; note conditions (speed, temperature, etc.)
Visually inspect the sensor at Tire 5, its connector and harness for damage, corrosion or looseness
Check for water intrusion, wheel bearing/seal failure or physical damage to sensor mounting
Backprobe connector and measure signal, reference voltage and ground with engine off and while rotating wheel if safe
Check continuity and resistance of the wiring between sensor connector and the control module
Confirm proper CAN or serial communication if sensor transmits digitally

Parameters depend on sensor type (analog accelerometer, piezo, or digital). Consult model service data before relying on values.
Analog accelerometer: typical quiescent output near vehicle reference mid‑rail (≈2.5 V on a 5 V system); deflects above/below with acceleration
Reluctor-type wheel sensors: AC voltage amplitude and frequency increase with wheel speed (mV to volts depending on sensor)
Hall/magnetic sensors: square wave or pulse signal; amplitude typically 0–5 V or 0–12 V depending on system
Digital sensors: CAN or LIN messages — verify expected message presence and content with a scan tool
Typical DC resistance (if applicable) commonly falls in the hundreds to low thousands of ohms — see service manual

Connect a full-function scan tool, confirm C1953 and any related codes. Record freeze frame and live data for Tire 5 sensor.
Perform a visual inspection of wheel, hub and sensor (position 5). Look for damage, contamination or loose mounting.
With ignition ON, backprobe the sensor connector and check reference voltage, ground and signal lines. Compare to known-good ranges in service data.
Rotate the wheel (safe on a hoist) and observe signal behavior (AC waveform or pulses). Look for dropouts or noise.
Wiggle the harness and connector while watching live data to identify intermittent faults.
Check continuity and for short to ground/power between sensor and the module. Repair any wiring faults found.
If wiring and connectors are good, substitute a known-good sensor (or swap with identical position on another wheel if applicable) to verify sensor failure.
If sensor replacement is required, install new sensor, perform any required calibrations/initializations and clear codes.
Recheck by road test under the same conditions that created the DTC and reconfirm no recurrence. If code persists, investigate control module or communication bus faults.

⚠️ Status

Acceleration sensor circuit fault — Tire 5: signal missing, out of range, intermittent, or communication error detected by control module.

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 1.0-2.5 hours

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