Code
P0705
MITSUBISHI
P — Powertrain
Transmission control range
Views:
UK: 32
EN: 32
RU: 64
AI status
Completed
Completed
100%
Causes
- Faulty transmission range (TR) sensor / neutral safety / PRNDL switch
- Damaged, shorted or open wiring between TR sensor and PCM
- Corroded or loose connector at the TR sensor or PCM
- Shift linkage misadjusted or mechanically binding
- Blown fuse or poor power/ground to sensor circuit
- Faulty PCM (less common)
Symptoms
- Malfunction indicator lamp (MIL) illuminated
- Vehicle may not start in Park/Neutral (no-start) or starter relay inhibited
- Incorrect or no PRNDL indicator on dash
- Transmission may go into limp mode or fail to shift correctly
- Intermittent loss of gear recognition or erratic behavior when moving shifter
What to check
- Read stored and pending codes and freeze-frame data with a scan tool
- Verify actual selector lever position vs. PRNDL displayed by PCM
- Visually inspect TR sensor connector and wiring for damage, corrosion, or loose terminals
- Check fuses and battery voltage; verify good power and ground at sensor connector
- Backprobe TR sensor connector and measure reference, output and ground
- Perform continuity check from TR connector to PCM pins
Signal parameters
- Reference/supply voltage typically from PCM (commonly ~5V) present at TR sensor power/REF pin with ignition ON
- Sensor output is a switched or discrete voltage signal to PCM — expected to change when shifter is moved (0–5 V range)
- Closed switch positions show near 0 Ω continuity between specified pins; open positions show very high resistance
- No signal (open circuit), stuck at a single voltage, or intermittent voltage indicates wiring or switch fault
Diagnostic algorithm
- Confirm P0705 is current and record freeze-frame data. Note vehicle conditions (ignition on, engine off/ running) when code set.
- Verify physical selector lever matches the PRNDL position reported by the scan tool. If mismatch present, inspect linkage/adjustment.
- Visually inspect TR switch connector and harness for damage, corrosion, bent pins or water intrusion; repair as needed.
- With ignition ON (engine off), backprobe the TR sensor connector and check for reference voltage and ground. Compare to expected values in service data.
- Move the shifter through positions while monitoring the output signal/voltages or continuity. Confirm the signal changes to the expected states for Park, Reverse, Neutral, Drive, etc.
- If signals are missing or incorrect, trace and test continuity between the TR connector and PCM. Repair any open/shorted wiring.
- If wiring and connectors are good but sensor outputs are incorrect, replace or bench-test the TR switch and recheck.
- After repairs, clear codes, perform a self-test and road test to confirm the fault does not return.
Likely causes
- Failed transmission range switch
- Connector corrosion or poor pin contact at the TR switch
- Broken/chafed wire or short to ground/power in harness to PCM
- Shift lever linkage out of adjustment preventing correct switch operation
Fault status
Status
Transmission range/position sensor circuit malfunction detected — gear position signal out of expected range.
Repair difficulty: Medium
Diagnostic time: 1.0-2.5 hours
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