Refer to Dtc P See page ES

DTC No.

DTC Detection Conditions

Trouble Areas

P0418

After cold engine starts, all of following conditions met (1 trip detection logic):

(a)Air Injection (AIR) system not operating (air pump

OFF, Air Switching Valve [ASV] OFF)

(b)Diagnostic signal from Air Injection Control Driver

(AID) 20 % (c)Battery voltage 8 V or more

• Open in air pump drive circuit

• Short between air pump drive and +B circuits

• ECM

P0418

After cold engine starts, all of following conditions met (1 trip detection logic):

(a)Air Injection (AIR) system operating (air pump ON,

Air Switching Valve [ASV] ON)

(b)Diagnostic signal from Air Injection Control Driver

(AID) 20 % (c)Battery voltage 8 V or more

• Short between air pump drive circuit and body ground

• ECM

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