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Home / DTC / P1716 — PG assy

P1716 — PG assy

Detailed page for trouble code P1716.

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P1716

MITSUBISHI P — Powertrain

PG assy

Brand: MITSUBISHI
Type: P — Powertrain
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Open or short in PG assembly wiring (power, ground, or signal)
  • Corroded, bent, or loose connectors at the PG assembly
  • Failed PG assembly (internal short, open circuit, or intermittent output)
  • Incorrect sensor alignment or mechanical damage to the sensor target
  • Faulty PCM/ECM or damaged module input circuit

Symptoms

  • Malfunction Indicator Lamp (MIL) illuminated
  • Transmission shift irregularities or limp-in mode
  • No-start or starter inhibited when gear selector not recognized (if park/neutral related)
  • Erratic speed/position readings or related system warnings
  • Intermittent faults that may appear under vibration or temperature change

What to check

  • Read freeze frame and freeze data to capture conditions when the fault set
  • Visually inspect PG assembly, harness and connectors for damage or corrosion
  • Check related fuses and connector pin integrity
  • Backprobe connector and measure reference voltage, ground, and signal
  • Wiggle test harness while monitoring signal to reproduce fault

Signal parameters

  • Reference voltage: typically 5V (verify with service literature)
  • Signal type: pulsed frequency or switched position signal (varies by vehicle)
  • At rest or specific gear: defined logic level (0V or ~5V) per manufacturer spec
  • Resistance or continuity across sensor terminals: compare to service values
  • Oscilloscope trace: consistent clean square or sine pulses without dropout or noise

Diagnostic algorithm

  1. Retrieve and record DTCs and live data; note related codes and freeze frame.
  2. Visually inspect PG assembly, wiring harness, and connectors for damage, corrosion, or poor routing.
  3. Verify power and ground at the PG connector with ignition on; confirm correct reference voltage.
  4. Backprobe signal wire and monitor with multimeter/oscilloscope while cranking/operating to confirm expected waveform/levels.
  5. Perform continuity and resistance checks from PCM connector to PG assembly to detect opens/shorts; repair as needed.
  6. If wiring and connector are good, substitute a known-good PG assembly or bench-test the sensor per service manual.
  7. After repair, clear codes and perform a road test to confirm the fault does not return; re-scan to verify.

Likely causes

  • Wiring chafed against chassis or moving components
  • Connector contaminated with moisture/corrosion
  • Connector pins pushed out or damaged
  • PG assembly worn or internally failed
  • Aftermarket repairs or improper installation disturbed sensor location

Fault status

⚠️ Status
Stored when the engine/transmission control module detects an abnormal, open, shorted or inconsistent signal from the PG assembly circuit. The fault remains until the circuit and signal return to normal and required drive cycles pass.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0-3.0 hours

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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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