Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Inspection Procedure
- CHECK IF RADIO AUTO-SEARCH FUNCTIONS PROPERLY
- Check if the radio auto-search function properly.
- Perform the auto-research of the radio and check that the operation is normal.
Standard: malfunction disappear.
- Perform the auto-research of the radio and check that the operation is normal.
- NG: Go to step 5
OK: Go to next step.
- Check if the radio auto-search function properly.
- PRESS "EJECT" AND CHECK OPERATION
- Press "EJECT" and check the operation.
- Press the cassette tape EJECT switch of the radio receiver assembly for 2 sec. or more and check that the cassette tape is ejected.
Standard: The cassette tape is ejected.
- Press the cassette tape EJECT switch of the radio receiver assembly for 2 sec. or more and check that the cassette tape is ejected.
- NG: CHECK AND REPLACE RADIO RECEIVER ASSY
OK: Go to next step.
- Press "EJECT" and check the operation.
- CHECK CASSETTE TAPE
- Check the cassette tape.
- Check that the ejected cassette tape does not have the label peeling, cassette body deformation and others.
Standard: No fault on the cassette tape.
- Check that the ejected cassette tape does not have the label peeling, cassette body deformation and others.
- NG: CASSETTE TAPE FAULTY
OK: Go to next step.
- Check the cassette tape.
- REPLACE CASSETTE TAPE WITH ANOTHER AND RECHECK
- Replace the cassette tape with another and recheck.
- Replace the faulty cassette tape with the normal one to see if the same trouble occurs again.
Standard: malfunction disappear.
- Replace the faulty cassette tape with the normal one to see if the same trouble occurs again.
- OK: CASSETTE TAPE FAULTY
NG: Go to next step.
- Replace the cassette tape with another and recheck.
- INSPECT RADIO RECEIVER ASSY (BU+B, ACC+B, GND)
- Check that the continuity between terminals at each condition, as shown in the chart.
Standard:
TESTER CONNECTION SPECIFIED CONDITION CHART (1 OF 2)Tester connection Condition Specified condition GND - Body ground Constant Continuity - Check that the voltage between terminals at each condition, as shown in the chart.
Standard:
TESTER CONNECTION SPECIFIED CONDITION CHART (2 OF 2)Tester connection Condition Specified condition BU+B - GND/E Constant 10-14V ACC+B - GND/E Ignition switch ACC or ON 10-14V
- OK: CHECK AND REPLACE RADIO RECEIVER ASSY
NG: Go to next step.
REPAIR OR REPLACE HARNESS OR CONNECTOR
- Check that the continuity between terminals at each condition, as shown in the chart.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.