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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <3.0L> 13B-923 . CIRCUIT OPERATION • The malfunction indicator lamp (SERVICE ENGINE SOON or Check Engine Lamp) power is • The ECM <M/T> or PCM <A/T> controls the ground of the malfunction indicator lamp (SER- . COMMENT • In cases such as the above, the cause is proba- bly that the ECM <M/T> or PCM <A/T> is detect- . AK300072 CONNECTOR: C-41 AB C-41 (B) AK300124 CONNECTOR: C-111 AB C-111 AK300123 CONNECTOR: C-108 AB C-108 AK300119 CONNECTOR: C-28 AB C-28 AK300091 CONNECTOR: C-51 <M/T> ECM AF C-51 (GR) AK300244 CONNECTOR: C-52 <A/T> AC PCM C-52 (GR) AK300116 CONNECTOR: C-87 AB C-87 |