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 FOR ANY FOREIGN OBJECT
1. Check for any foreign object.
  1. Check that no foreign object or defect is detected in the cassette tape player of radio receiver assembly.
    Standard: No foreign object and defect detected.
1. NG: REMOVE FOREIGN OBJECT
2. OK: GO TO NEXT STEP.
CHECK CASSETTE TAPE
1. Check the cassette tape.
  1. Check that the cassette tape is a normal tape to which music or voice is recorded.
    Standard: Proper cassette tape to which music or voice is recorded.
1. NG: CASSETTE TAPE FAULTY
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: The function is recovered to be normal.
1. OK: CASSETTE TAPE FAULTY
2. NG:
CHECK IF RADIO AUTO-SEARCH FUNCTIONS PROPERLY
1. Check if the radio auto-search functions properly.
  1. Perform the auto-search of the radio and check that the operation is normal.
    Standard: The operation returns to be normal.
1. OK: CHECK AND REPLACE RADIO RECEIVER ASSY
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