Inspection Procedure

WARNING: This page is about a different car, the 2004 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.

CHECK IF RADIO AUTO-SEARCH FUNCTIONS PROPERLY
1. Check if the radio auto-search function properly.
  1. Perform the auto-research of the radio and check that the operation is normal.
  Standard: malfunction disappear.
1. NG: GO to step 5
2. OK: GO TO NEXT STEP.
PRESS "EJECT" AND CHECK OPERATION
1. Press "EJECT" and check the operation.
  1. 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.
1. NG: CHECK AND REPLACE RADIO RECEIVER ASSY
2. OK: GO TO NEXT STEP.
CHECK CASSETTE TAPE
1. Check the cassette tape.
  1. Check that the ejected cassette tape does not have the label peeling, cassette body deformation and others.
    Standard: No fault on the cassette tape.
1. NG: CASSETTE TAPE FAULTY OK
2. OK: GO TO NEXT STEP.
REPLACE CASSETTE TAPE WITH ANOTHER AND RECHECK
1. Replace the cassette tape with another and recheck.
  1. Replace the faulty cassette tape with the normal one to see if the same trouble occurs again.
    Standard: malfunction disappear.
1. OK: CASSETTE TAPE FAULTY
2. NG:

INSPECT RADIO RECEIVER ASSY (+B, ACC, GND)

Check that the continuity between terminals at each condition, as shown in the chart.

Standard:

RADIO RECEIVER ASSY CONNECTOR TERMINAL CONTINUITY

Tester connection	Condition	Specified condition
GND-Body ground	Constant	Continuity

Fig 1: Inspecting Radio Receiver Assy Connector Terminal +B, ACC And GND

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Check that the voltage between terminals at each condition, as shown in the chart.

Standard:

RADIO RECEIVER ASSY CONNECTOR TERMINAL VOLTAGE

Tester connection	Condition	Specified condition
+B-GND	Constant	10-14 V
ACC-GND	Ignition switch ACC or ON	10-14 V

OK: CHECK AND REPLACE RADIO RECEIVER ASSY
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR