TextNissan forklift codes - Note: This page is for forklifts using either K21 or K25 engines.
Q: How do I clear my Nissan forklift codes?
A: Clearing Nissan forklift codes can be a very intricate process for the user. It may be helpful to use a stopwatch during the process, as many steps require an accurate reading of time. It is also advised to read through the various procedures at least once as trying to wing it and perform the steps as you go may leave you lost due to the blinking lights and time constraints.
Having trouble with error codes from another brand? Check out these other helpful links:
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1. Turn the forklift key switch on while simultaneously starting the stopwatch.
2. Wait for 3 seconds, then proceed to press the forklift accelerator 5 times within 5 seconds. If it takes longer than 5 seconds to press the accelerator down 5 times, there is a chance you may forgo clearing the Nissan forklift codes.
3. Wait for another 7 seconds, then press and hold the forklift accelerator for 10 to 12 seconds until the Malfunction Indicator Light (MIL) begins to blink. You are now in Diagnostic Mode. If the MIL does not begin blinking, repeat steps 1 through 5.
Once the MIL starts flashing, you can start reading your Nissan forklift codes. The MIL will display 10 slow flashes; the forklift error code(s) will then follow.
Example: 1 flash (hesitation) 1 flash (hesitation) 8 flashes. This would indicate code P0118.
Example: 2 flashes (hesitation) 2 flashes (hesitation) 3 flashes. This would indicate code P0223.
After hesitation, another code may follow. If the MIL makes 10 quick flashes, pauses and gives another 10 quick flashes again 3 consecutive times, this would mean there are no codes stored in the ECM. After 10 slow flashes, the cycle is repeated.
To erase your Nissan forklift codes, the repairs must first be made. Following the necessary repairs, return to Diagnostic Mode. Hold the accelerator down for a minimum of 10 seconds, then release the accelerator and the Nissan forklift codes should be erased.
*If the accelerator pedal assembly has ever been replaced or disconnected on the lift truck, accelerator released position learning must be performed. This can be done in a few brisk steps. 1. Turn the ignition switch on and waiting for at least 2 seconds. 2. Turn ignition switch off and wait at least 10 seconds. 3. Turn ignition switch back on again and wait at least 2 seconds.
-Learning Completed-
Congratulations! You fixed the forklift.
Nissan Forklift Diagnostic Codes and Explanations
If you were wondering what those coded numbers mean, don’t fret we’ve got you covered!
P0031 – O2 heater low in put (breakage of wire)
P0032 – O2 heater high in put (electrical shortage)
P0102 – Airflow meter low in put (breakage of wire)
P0103 – Airflow meter high in put (electrical shortage)
P0117 – Water temperature sensor low in put (breakage of wire)
P0118 – Water temperature sensor high in put (electrical shortage)
P0122 – Throttle position sensor 2 low in put failure
P0123 – Throttle position sensor 2 high in put failure
P0132 – Front O2 sensor abnormal voltage (bank 1)
P0134 – Front O2 sensor breaking of wire (bank 1)
P0222 – Throttle position sensor 1 low in put failure
P0223 – Throttle position sensor 1 high in put failure
P0335 – Crank angle POS sensor break wire during start
Crank angle POS sensor break wire after start
Crank angle POS sensor momentary break
P0340 – Camshaft angle phase sensor break wire during start
Camshaft angle phase sensor break wire after start
Camshaft angle phase sensor momentary break
P0340 – Crankshaft position sensor
Crankshaft magnetic phase signal failure
P0350 – Ignition primary signal failure
P0500 – Vehicle speed sensor failure
P0605 – Change in ECM assembly needed
P0650 – Warning light diagnosis (valve wiring)
Warning light diagnosis (circuit line)
P1065 – Backup RAM system diagnosis (main)
P1121 – Return spring diagnosis
Default mechanism diagnosis (slightly open fixed angle)
Throttle open and fixed diagnosis
P1122 – Throttle F/B control monitoring diagnosis
Throttle servo error diagnosis
P1124 – Throttle motor power source short
P1126 – Throttle motor power source break
P1128 – Throttle motor short
P1129 – AVCC wiring short
P1217 – Overheat
P1218 – Overheat step #1
P1225 – TPS fully close study data down
P1226 – TPS fully close study data unusually renewal
P1240 – LPG fuel injector 1 damage (injection zone)
P1241 – LPG fuel injector 1 damage (not injection zone)
P1242 – LPG fuel injector 2 damage (injection zone)
P1243 – LPG fuel injector 2 damage (not injection zone)
P1245 – LPG fuel pressure sensor failure (electrical shortage)
P1249 – LPG extra high fuel pressure detected / pressure failure
P1805 – Brake switch OFF failure
P1810 – Lift height low switch OFF (high position ON)
P1811 – Lift height high switch OFF (low position ON)
P2122 – APS1 low in put failure
P2123 – APS1 high in put failure
P2127 – APS2 low in put failure
P2128 – APS2 high in put failure
P2135 – TPS 1 and/or 2 miss-matching failure
P2138 – TPS 1 and/or 2 miss-matching failure
U1001 – CAN non-emission related communication system failure (breaking of wire, circuit failure)
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