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SYMPTOM 3: STATIC PRESENT WITH Table 8-40. Symptom 3: Static Present with Engine Running Diagnostic Faults POSSIBLE CAUSES Alternator malfunction Regulator malfunction Loose power connections Loose antenna connections 1. Static Observation Test 1. Is static present only when the engine is operating? a. Yes. b. No. See 8.5 ADVANCED AUDIO SYSTEM SYMP- TOMS, Symptom 2: Poor or No Reception . 2. Regulator Test 1. Disconnect alternator [47] and start engine. 2. Is static still present? a. Yes. b. No. 3. Regulator Connectors Test 1. Inspect regulator connectors for damaged, pushed out or 2. Are connector terminations okay and the connectors tight? a. Yes. Replace voltage regulator. See the service b. No. Clean and tighten connections. (5041) 4. Ignition System Test 1. Test for proper spark plug wire resistance of 4975-11,950 2. Is resistance within the specified range? a. Yes. If spark plug wires are in good condition, replace b. No. Replace spark plug wires. See the service SYMPTOM 4: CB TRANSMITTER TOOL NAME PART NUMBER CB MICROPHONE LOAD DEVICE HD-39448 Table 8-41. Symptom 4: CB Transmitter Inoperative Diagnostic Faults POSSIBLE CAUSES CB module malfunction Radio malfunction 1. Set-Up Test 1. Perform the following: a. Press POWER button to turn radio ON. b. Set Headset/Speaker switch on fairing to SPEAKER. c. Press COM button. d. Press softkey 1 to turn CB radio ON. e. Set volume control to middle position on horizontal 2. Does CB radio power up? a. Yes. b. No. See 8.4 SERIAL DATA BUS DIAGNOSTICS, DTC U1307 Infotainment Bus Lost Communication . 2. Push-to-Talk (PTT) Test 1. Press any PTT switch. 2. Does the channel number on the display invert? a. Yes. System okay. b. No. 3. CB Transmission Test 1. Tune a known good receiver to the same channel as the 2. Press any PTT switch. 3. Does transmitter transmit? a. Yes. b. No. See appropriate PTT switch inoperative test. If 4. CB Reception Test 1. Tune to different CB channels while listening. 2. Are any signals being received? a. Yes. b. No. Replace CB Module. (6625) 5. CB Modulation Test 1. Disconnect antenna [50] and connect CB MICROPHONE 2. With CB ON, press any PTT button, and speak into the 3. Does dummy load change in brilliance when transmitting a. Yes. b. No. 6. Microphone Test 1. Repeat Test 5 with a known good microphone. 8-36 2011 Touring Diagnostics: Audio System |