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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) 13A-809 STEP 6. Measure the backup power supply voltage at PCM side. (2) Measure the voltage between terminal No. 66 and ground. • Voltage should be battery positive voltage. Q: Is battery positive voltage (approximately 12 volts) present? PCM connector C-90 (terminal No. 66). Then confirm AK103762 42 43 48 49 50 51 52 53 54 55 56 57 46 45 44 58 59 60 61 62 63 64 65 66 47 41 AB CONNECTOR: C-90 C-90(GR) HARNESS CONNECTOR: AKX01436 41 42 43 47 48 49 58 59 50 51 60 61 52 53 54 63 64 55 56 57 44 45 46 65 66 C-90 HARNESS BA |