These instructions apply to the Nissan Titan Mk1 (A60) 2004-2015.
For other models, please choose your vehicle here.
After a battery disconnect, a throttle-body clean or an electronic-throttle repair, the Nissan Titan (A60, 2004–2015) with the 5.6-litre VK56DE V8 can idle roughly or hunt until the ECM relearns its idle settings. You can perform the full relearn yourself with no scan tool — it is a precise sequence of ignition and accelerator-pedal steps.
Before You Start
The relearn only takes if every condition below is met and held throughout — miss one for even a moment and it cancels:
- Battery voltage above 12.9 V at idle.
- Engine coolant temperature 70–100 °C (158–212 °F).
- Transmission in P or N; steering straight; vehicle stopped.
- All electrical loads off (air conditioning, headlights).
- Transmission warmed up — drive for about 10 minutes first.
How to Perform the Idle Relearn
The full procedure is three learnings in order: accelerator-pedal released position, throttle-valve closed position, then idle-air-volume. Read it through before you begin and count the timings accurately.
- Accelerator-pedal released position: with the pedal fully up, turn the ignition ON and wait at least 2 seconds; turn it OFF and wait at least 10 seconds; turn it ON again for at least 2 seconds; turn it OFF and wait at least 10 seconds.
- Throttle-valve closed position: start the engine from cold (coolant below 25 °C/77 °F), warm it to at least 65 °C (149 °F), then turn the ignition OFF and wait at least 10 seconds — you should hear the throttle valve move during that time.
- Start the engine and warm it to normal operating temperature, then confirm the conditions above are all met.
- Turn the ignition OFF and wait at least 10 seconds.
- With the pedal fully released, turn the ignition ON and wait 3 seconds.
- Within 5 seconds, fully depress and fully release the accelerator pedal 5 times.
- Wait about 7 seconds, then fully depress the pedal and hold it for about 20 seconds until the malfunction indicator lamp stops blinking and stays ON.
- Fully release the pedal within 3 seconds of the lamp turning ON.
- Start the engine and let it idle for 20 seconds.
- Rev the engine two or three times and confirm the idle is steady at about 650 rpm in P or N.
If the Relearn Does Not Take
The most common reasons are a condition that slipped out of range mid-sequence — a load switching on, the coolant cooling below the window, or a timing that was off. Recheck every precondition and repeat the sequence from the start. Persistent rough idle after a clean relearn points to an intake air leak, a dirty throttle body, or a fault that needs codes read.
Frequently Asked Questions
Do I need a scan tool? No — the sequence above is the no-tool method. A scan tool can do the same job faster but is not required.
When do I need to do this? After disconnecting or replacing the battery, cleaning the throttle body, or replacing the electronic throttle actuator or ECM — any time the idle is rough or hunts afterwards.
The MIL came on during the pedal steps — is that a fault? During the idle-air-volume step the lamp is meant to blink and then stay on as a signal — that is part of the procedure, not a fault code.
What idle speed is correct? About 650 rpm (±50) in P or N, with ignition timing around 15° BTDC.
If a check-engine light stays on afterwards and you need to look up the 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.