Inspection Procedure

WARNING: This page is about a different car, the 2009 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT RADIO RECEIVER

Disconnect the radio receiver connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance

RESISTANCE SPECIFICATION

Tester Connection	Condition	Specified Condition
E103-20 (E) - Body ground*1	Always	Below 1 Ω
E1-7 (E) - Body ground*2	Always	Below 1 Ω

Measure the voltage according to the value(s) in the table below.

Standard Voltage

VOLTAGE SPECIFICATION

Tester Connection

Condition

Specified Condition

E103-1 (B) - E103-20 (E)⁽¹⁾

Always

11 to 14 V

E1-4 (B) - E1-7 (E)⁽²⁾

Always

11 to 14 V

E103-11 (ACC) - E103-20 (E)⁽¹⁾

Ignition switch ACC

11 to 14 V

E1-3 (ACC) - E1-7 (E)⁽²⁾

Ignition switch ACC

11 to 14 V

⁽¹⁾	for 8 Speakers

⁽²⁾	Except for 8 Speakers

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

Fig 1: Identifying Radio Receiver Connector Terminals

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See PROBLEM SYMPTOMS TABLE )