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415-00-19 Entertainment System — General Information 415-00-19 DIAGNOSIS AND TESTING (Continued) Test Step Result/Action to Take Acronyms I4 Push the ICC audio power button. Yes POWER_SW Check pid’s using data logger. Go to I5. Does the ICC audio turn on? No Go to ICC does not turn on symptom in the symptom chart. I5 Check that each steering wheel audio switch Yes VOL_UP, functions correctly. Correct operation VOL_DN , Check pid’s using data logger. No SEEK_BTN, Does each switch function correctly? Continue MODE_SW I6 Remove steering wheel airbag as per airbag Yes removal procedure. Go to I7 Disconnect audio steering wheel connection. No Do switch resistance check Replace switches Volume- 0 Ohm Is switch resistance correct I7 Check wiring connection between ICC Instrument Yes panel connector and steering column Go to I8 Is wiring OK? No Repair/replace wiring as per wiring procedure I8 Check wiring connection between steering wheel Yes clock spring and audio steering wheel switches. Go to I9 Is wiring OK? No Repair/replace wiring as per wiring procedure I9 Remove ICC and check resistance readings at ICC Yes instrument panel connector. Replace faulty ICC with a Are resistance readings correct? new ICC and retest. No Replace original ICC and retest. TEST J : NAVIGATION NOT WORKING Using the WDS data logger function activate the following acronyms. RUN_POS, ACC_POS, POWER_SW, NAV_PRES Test Step Result/Action to Take Acronyms J1 Turn the ignition on. Yes RUN_POS Check pid’s using data logger. Go to J2 Is the ignition on? No Repair faulty ignition system and retest. G68759 en |