These instructions apply to the Nissan Navara (D40) 2005-2015.
For other models, please choose your vehicle here.
The Nissan Navara (D40, 2005–2015) — sold in North America as the Nissan Frontier — has a built-in instrument-cluster self-diagnosis mode you can open yourself with no scan tool. It sweeps the gauges, lights every segment and warning lamp, and even shows the battery voltage the cluster sees — the fastest way to prove the cluster itself is healthy when a gauge or warning light behaves oddly.
What the Self-Test Shows
- A gauge sweep followed by the present gauge values.
- Illumination of all odometer, trip and transmission-indicator LCD segments.
- Illumination of all cluster-controlled lamps and LEDs, regardless of switch position.
- The estimated battery voltage the cluster is reading, and the driver’s seat-belt switch status.
How to Enter the Hidden Diagnostic Menu
You use the odometer/trip-meter switch (the button you press to change between ODO and TRIP A/B).
- Sit in the car with the ignition OFF.
- Press and hold the odometer/trip-meter switch, and while holding it turn the ignition to ON. Keep holding for 5 to 8 seconds.
- When the mode activates, the odometer display shows tESt.
- Release the switch — the gauges sweep (within about 10 seconds) and then show their present values.
- Press the switch again to light all LCD segments (compare against a known-good display for any missing segment).
- Press again to illuminate all lamps and LEDs, and to step on to the battery-voltage and seat-belt-switch readings.
- Turn the ignition OFF (or to ACC) to leave the mode.
Note: if you enter the mode with trip A on display, trip A is reset to 0000.0 — reset your trip reading afterwards if you were tracking a tank.
Reading the Result
Every gauge, segment and lamp should respond, and the battery-voltage reading should be in the normal range (about 12.4–12.7 V with the engine off). A dead segment, a lamp that will not light, or a needle that will not sweep points to a fault inside the cluster rather than the sensor or system it reports. Note that not every lamp position is fitted on every trim, so a lamp that stays off may simply not be installed — that is normal. If the mode will not start at all, the cluster power or ground is suspect; if those are good, the cluster itself is the likely cause.
How to Exit
Switch the ignition OFF or to ACC. The cluster returns to normal at the next start — the mode only reads and displays, it changes nothing (other than the trip-A reset noted above).
Frequently Asked Questions
My truck is a Frontier, not a Navara — does this apply? Yes — the D40 Frontier and Navara share the same cluster, so the sequence is the same.
Does this clear warning lights or codes? No — it is a display, lamp and gauge test only. It does not erase stored fault codes.
The mode will not start — what is wrong? Hold the odometer/trip switch as you turn the ignition ON and keep holding a full 5 to 8 seconds until tESt shows. If it still will not start, the cluster power/ground or the cluster itself may be faulty.
A warning lamp did not light — is the cluster bad? Not necessarily — some lamp positions are not fitted on lower trims, so they cannot light. Only a lamp that should be present but stays dark points to a fault.
If the engine warning lamp is lit and you need to look up an engine trouble code, visit our sister site autodtcs.com.
Independent guide — not affiliated with Nissan. Always follow your official service manual and safety precautions. Read our full disclaimer.