Inspection Procedure

WARNING: This page is about a different car, the 2007 Toyota Camry Solara. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT RELAY

Inspect ACC relay and IG1 relay continuity.

Fig 1: Identifying Headlight Relay

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

Standard resistance

RESISTANCE REFERENCE CHART

Tester connection	Specified condition
3 - 5	10 kΩ or higher
3 - 5	Below 1 Ω (When battery voltage is applied to terminals 1 - 2)

NG: REPLACE RELAY

OK: Go to next step.

INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (ACC, IG)

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

Fig 2: Identifying Instrument Panel Junction Block Assembly Back Side Wire Harness View Location

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Fig 3: Identifying Instrument Panel Junction Block Assembly Front Side Wire Harness View

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Standard voltage

VOLTAGE CHART

Tester connection	Condition	Specified condition
2G-9 - 2F-16	Ignition switch OFF → ACC, ON	Below 1 V → 10 to 14 V
2G-29 - 2F-16	Ignition switch OFF → ON	Below 1 V → 10 to 14 V

NG: Go to step 3

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

INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (POWER SOURCE CIRCUIT)

Disconnect the 2A connector from the instrument panel junction block assembly.

Fig 4: Identifying Instrument Panel Junction Block Assembly Front Side Wire Harness View
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

Standard voltage

VOLTAGE CHART

Tester connection	Condition	Specified condition
2A-1 - Body ground	Always	10 to 14 V

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)

OK: Go to next step.

INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

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

Fig 5: Identifying Instrument Panel Junction Block Assembly Back Side Wire Harness View

Standard voltage

VOLTAGE CHART

Tester connection	Condition	Specified condition
2G-10 - Body ground	Always	10 to 14 V

NG: REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

OK: Go to next step.

CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - BODY GROUND)

Disconnect the 2F connector from the instrument panel junction block assembly.

Fig 6: Identifying Instrument Panel Junction Block Assembly Front Side Wire Harness View
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

Standard resistance

RESISTANCE REFERENCE CHART

Tester connection	Condition	Specified condition
2F-16 - Body ground	Always	Below 1 Ω

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (GROUND CIRCUIT)

OK: REPAIR OR REPLACE HARNESS OR CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - IGNITION SWITCH)