Inspection Procedure

WARNING: This page is about a different car, the 2004 Lexus LX 470. However, it is still accessible from the selected car via links, so may be relevant.

Check voltage between terminals +B, ACC, IG and GND1 of television camera ECU.

Disconnect the T32 connector from the television camera ECU.

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

Standard:

VOLTAGE SPECIFICATION CHART

Tester connection	Condition	Specified condition
+B - Body ground	Always	10 to 14 V
ACC - Body ground	Ignition SW ACC	10 to 14 V
IG - Body ground	Ignition SW ON	10 to 14 V

Fig 1: Checking Voltage Between Terminals +B, ACC, IG And GND1 Of Television Camera ECU

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: Repair or replace harness or connector.
OK: Go To Next Step

Check continuity between terminal GND1 and body ground.

Disconnect the T32 connector from the television camera ECU.

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

Standard:

VOLTAGE SPECIFICATION CHART

Tester connection	Condition	Specified condition
GND1 - Body ground	Always	Below 1 Ω

Fig 2: Checking Continuity Between Terminal GND1 And Body Ground

NG: Repair or replace harness or connector.
OK: Replace television camera ECU.