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ZC6008760017 Connectors: C-14, C-22 C-14 C-22 ZC6008750019 Connector: C-129
ZC6008790004 Connectors: D-126, D-127 C-127 C-126
COMMENTS ON TROUBLE SYMPTOM PROBABLE CAUSES ⦆ Malfunctions of radio and CD changer ⦆ Malfunction of audio amplifier ⦆ Option coding information inconsistency ⦆ Damaged harness wires and connectors DIAGNOSIS Required Special Tools: ⦆ MB991223: Harness Set ⦆ MB992006: Extra Fine Probe ⦆ MB991958: Scan Tool (M.U.T.-III Sub Assembly) ⦆ MB991824: Vehicle Communication Interface (V.C.I.) ⦆ MB991827: M.U.T.-III USB Cable ⦆ MB991910: M.U.T.-III Main Harness A STEP 1. Check the ETACS-ECU coding data. (1) Operate the scan tool MB991958 to read the ETACS-ECU (2) Check that the "Speaker" is set to "Premium." Q:Is the check result normal? YES: Go to Step 2. NO: Operate scan tool MB991958 to set the option coding "Speaker" to "Premium," and check the trouble symptom. AUDIO AND NAVIGATION SYSTEM 54B-25 DIAGNOSIS |