Asian Fault Code
Free · no signupP0705 / P0841
"AT CHECK" light; Transmission won't shift out of 1st; Erratic RPM; Cruise control inop.
System
Not specified
Symptom
"AT CHECK" light; Transmission won't shift out of 1st; Erratic RPM; Cruise control inop.
Diagnosis & fix steps
Transmission Range Sensor / Fluid Pressure Sensor.
LOGIC: The TCM receives conflicting signals about what gear the driver has selected.
ACTION: 1. Check external shifter linkage.
2. Inspect TCM connector for green corrosion.
3. Check fluid level/condition.
FIX: Replace Range Sensor (Neutral Safety Switch); repair harness corrosion; replace Valve Body.
Red Seal field insights
On Nissans, the grounding for the CVT transmission is vital. Adding an extra ground strap from the transmission case to the frame can often cure "ghost" sensor codes.
Same code keeps coming back?
That's a program problem, not a part problem. Book a 30-minute uptime review with Grant, a Red Seal Heavy Duty Technician.
Read before you touch anything
- This is general reference information, not a repair manual. It is for trained, qualified technicians.
- Fault codes, meanings and procedures vary by model, serial number and software version. Confirm the code and the procedure against the manufacturer's service manual before acting.
- Follow the OEM service manual, torque specs and your site's safety procedures: lockout/tagout, block raised equipment, relieve hydraulic, fuel and air pressure, and let hot systems cool.
- You use this information at your own risk. Adventure Mechanical and AM Fleet Integrity accept no liability for damage, injury, downtime or loss arising from its use.
- Not affiliated with or endorsed by any manufacturer. Brand names are used only to identify the equipment a code applies to.
Track this across your whole fleet
This code is free to read. AM Fleet Integrity lets your team log fault codes against assets, plus the full fault-code library, QR operator reporting, PM scheduling and predictive alerts. Start free — no credit card required.
Start your free trial