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3 CHECK SPEAKER RELAY Check continuity speaker relay terminals in the condition below. Speaker relay 1 2 3 4 5 6 7 8 Condition Terminal Other than 5V direct 1 2 3 4 5 6 7 8 SEL624X OK or NG OK © GO TO 4. NG © Replace speaker relay. 4 CHECK SPEAKER OPERATION Does front LH speaker sound when audio operates? Yes or No Yes © Check harness for open or short between speaker relay terminals 6, 7 and also between No © Check the following. + Speaker + Harness for open or short between audio and speaker relay NAVIGATION SYSTEM Trouble Diagnoses (Cont’d) EL-431 |