Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSTOYOTA2009CAMRY HYBRIDREPAIR AND DIAGNOSISENGINE MECHANICALSTARTERSTARTING SYSTEM (HYBRID)SMART KEY SYSTEMPOWER SOURCE MODE DOES NOT CHANGE TO ON (IG)INSPECTION PROCEDURE

2009 Toyota Camry Hybrid

Inspection Procedure

2009 Toyota Camry HybridSECTION Inspection Procedure

INSPECT FUSE (AM2)
1. Remove the AM2 fuse from the engine room J/B.
2. Measure the resistance of the fuse.
Standard resistance:

Below 1 Ω

NG: REPLACE FUSE

OK: Go to Next Step
CHECK CONNECTORS
1. Check that the connectors are securely connected and the terminals are not deformed or loose.
OK:

The connectors are securely connected and the terminals are not deformed or loose.

NG: REPAIR OR REPLACE CONNECTORS

OK: Go to Next Step

CHECK WIRE HARNESS (MAIN BODY ECU - BATTERY)

Disconnect the E6 and E7 ECU connectors.
Measure the voltage according to the value (s) in the table below.

Standard voltage

VOLTAGE SPECIFICATION

Tester Connection (Symbols)	Condition	Specified Condition
E7-6 (AM1) - Body ground	Always	10 to 14 V
E6-1 (AM2) - Body ground	Always	10 to 14 V

Fig 1: Identifying Wire Harness (Main Body ECU - Battery)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to Next Step

CHECK WIRE HARNESS (MAIN BODY ECU - BODY GROUND)

Disconnect the IF and IM ECU connectors.
Measure the resistance according to the value (s) in the table below.

Standard resistance

RESISTANCE SPECIFICATION

Tester Connection (Symbols)	Condition	Specified Condition
IF-10 (GND1) - Body ground	Always	Below 1 Ω
IM-9 (GND2) - Body ground	Always	Below 1 Ω

Fig 2: Identifying Wire Harness (Main Body ECU - Body Ground)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to Next Step

INSPECT RELAY (IG2 RELAY)

Remove the IG2 relay from the engine room R/B No. 2.
Measure the resistance according to the value (s) in the table below.

Standard resistance

RESISTANCE SPECIFICATION

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

Fig 3: View Of Relay (IG2 Relay)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE RELAY

OK: Go to Next Step

CHECK WIRE HARNESS (ENGINE ROOM R/B - MAIN BODY ECU AND BODY GROUND)

Remove the IG2 relay from the engine room R/B.

Fig 4: Identifying IG2 Relay From Engine Room R/B Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Disconnect the E6 ECU connector.

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

Standard resistance

RESISTANCE SPECIFICATION

Terminal No. (Symbol)	Specified Condition
Engine Room R/B IG2 relay terminal 1 - E6-11 (IG2D)	Below 1 Ω
Engine Room R/B IG2 relay terminal 2 - Body ground	Below 1 Ω
E6-11 (IG2D) - Body ground	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to Next Step

INSPECT RELAY (IG1 RELAY)

Remove the IG1 relay from the instrument panel J/B.
Measure the resistance according to the value (s) in the table below.

Standard resistance

RESISTANCE SPECIFICATION

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

Fig 5: View Of Relay (IG1 Relay)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE RELAY

OK: Go to Next Step

CHECK WIRE HARNESS (INSTRUMENT PANEL J/B - MAIN BODY ECU)

Disconnect the II J/B connector.

Fig 6: Identifying Wire Harness (Instrument Panel J/B - Main Body ECU)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Disconnect the E7 ECU connector.
Measure the resistance according to the value (s) in the table below.

Standard resistance

RESISTANCE SPECIFICATION

Terminal No. (Symbol)	Condition	Specified Condition
II-9 - E7-3 (IG1D)	Always	Below 1 Ω
E7-3 (IG1D) - Body ground	Always	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to Next Step

CHECK WIRE HARNESS (INSTRUMENT PANEL J/B - BATTERY AND BODY GROUND)

Disconnect the IF and IA J/B connectors.

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

Standard resistance

RESISTANCE SPECIFICATION

Terminal No.	Condition	Specified Condition
IF-10 - Body ground	Always	Below 1 Ω

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

Standard voltage

VOLTAGE SPECIFICATION

Terminal No.	Condition	Specified Condition
IA-1 - Body ground	Always	10 to 14 V

Fig 7: Identifying Wire Harness (Instrument Panel J/B - Battery And Body Ground)

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to Next Step

INSPECT INSTRUMENT PANEL J/B

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

Fig 8: Identifying Instrument Panel J/B

Standard resistance

RESISTANCE SPECIFICATION

Terminal No.	Condition	Specified Condition
IF-10 - IG1 relay terminal-1	Always	Below 1 Ω
II-9 - IG1 relay terminal-2	Always	Below 1 Ω
IF-10 - Body ground	Always	10 kΩ or higher
II-9 - Body ground	Always	10 kΩ or higher

OK: REPLACE MAIN BODY ECU

NG: REPLACE INSTRUMENT PANEL J/B

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.