Inspection Procedure

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If the vehicle run out of fuel, the air-fuel ratio is LEAN and DTC P0125 will be recorded . The MIL then comes on.

Read freeze frame data using TOYOTA hand-held tester or OBD II scan tool. Because freeze frame records the engine conditions when the malfunction is detected, when troubleshooting it is useful for determining whether the vehicle was running or stopped, the engine warmed up or not, the air-fuel ratio lean or rich, etc at the time of the malfunction.

There is a possibility that P0125 is detected because of abnormal fuel system, so, when P0125 is memorized, check P0171 and P0172 even if P0171 and P0172 are memorized.

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