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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 SYSTEMTERMINALS OF ECU

2009 Toyota Camry Hybrid

Terminals Of Ecu

2009 Toyota Camry HybridSECTION Terminals Of Ecu

CHECK MAIN BODY ECU (INSTRUMENT PANEL J/B)

Fig 1: Identifying ECU Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Disconnect the IR, IA, IK, ID, IF, IM E6, E7 and E8 ECU connectors.

Measure the voltage and resistance of the wire harness side connector.

TERMINAL DESCRIPTION AND SPECIFIED CONDITION

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified Condition
AM1 (E7-6) - Body ground	L - Body ground	+B power supply	Always	10 to 14 V
AM2 (E6-1) - Body ground	L - Body ground	+B power supply	Always	10 to 14 V
SSW1 (E7-17) - Body ground	L - Body ground	Power switch signal	Power switch pushed	Below 1 Ω
SSW1 (E7-17) - Body ground	L - Body ground	Power switch signal	Power switch not pushed	10 kΩ or higher
SSW2 (E7-16) - Body ground	V - Body ground	Power switch signal	Power switch pushed	Below 1 Ω
SSW2 (E7-16) - Body ground	V - Body ground	Power switch signal	Power switch not pushed	10 kΩ or higher
GND3 (E8-1) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
LIN1 (IR-9) - Body ground	O - Body ground	LIN line	Always	10 kΩ or higher
BATB (IA-1) - Body ground	B - Body ground	+B Power supply	Always	10 to 14 V
GND1 (IF-10) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
GND2 (IM-9) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
CANN (E8-15) - Body ground	W - Body ground	CAN Line	Always	10 kΩ or higher
CANP (E8-16) - Body ground	B - Body ground	CAN Line	Always	10 kΩ or higher
CANH (E8-5) - Body ground	B - Body ground	CAN Line	Always	10 kΩ or higher
CANL (E8-6) - Body ground	W - Body ground	CAN Line	Always	10 kΩ or higher

If the result is not as specified, there may be a malfunction on the wire harness side.

Reconnect the ECU connectors.

Measure the voltage of the connector.

TERMINAL DESCRIPTION AND SPECIFIED CONDITION

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified Condition
ACC (IF-2) - Body ground	L - Body ground	ACC power supply	Power switch on (ACC)	10 to 14 V
IG (IF-11) - Body ground	B - Body ground	IG power supply	Power switch on (IG)	10 to 14 V
ACCD (E7-22) - GND3 (E8-1)	W - W-B	ACC signal	Power switch on (ACC)	Output voltage at terminal AM1 or AM2 is -2V or more.
ACCD (E7-22) - GND3 (E8-1)	W - W-B	ACC signal	Power switch off	Below 1 V
IG1D (E7-3) - GND3 (E8-1)	P - W-B	IG1 signal	Power switch on (IG)	Output voltage at terminal AMI or AM2 is -2V or more.
IG1D (E7-3) - GND3 (E8-1)	P - W-B	IG1 signal	Power switch on (ACC)	Below 1 V
IG2D (E6-11) - GND3 (E8-1)	LG - W-B	IG2 signal	Power switch on (IG)	Output voltage at terminal AM1 or AM2 is -2V or more.
IG2D (E6-11) - GND3 (E8-1)	LG - W-B	IG2 signal	Power switch on (ACC)	Below 1 V
STP (IL-7) - GND3 (E8-1)	L - W-B	Stop light signal	Brake pedal depressed	Output voltage at terminal AM1 or AM2 is -2V or more.
STP (IL-7) - GND3 (E8-1)	L - W-B	Stop light signal	Brake pedal released	Below 1 V
SLR+ (E7-19) - GND3 (E8-1)	BR - W-B	Steering lock motor signal	Steering lock motor operating	Below 1 V
SLR+ (E7-19) - GND3 (E8-1)	BR - W-B	Steering lock motor signal	Steering lock motor does not operate	Output voltage at terminal AM1 or AM2 is -2V or more.
SLP (E7-18) - GND3 (E8-1)	P - W-B	Steering lock actuator position signal	Steering lock is locked	Pulse generation (See waveform 3)
SLP (E7-18) - GND3 (E8-1)	p. W-B	Steering lock actuator position signal	Steering lock is released	Pulse generation (See waveform 3)
SPD (E8-9) - GND3 (E8-1)	V - W-B	Vehicle speed signal	Power switch on (IG), rotate rear wheel slowly	Pulse generation (See waveform 1)
RDY (E8-8) - GND3 (E8-1)	SB^1 - W-B W^2 - W-B	Power switch on (READY) signal	Power switch on (READY)	Pulse generation (See waveform 2)
P (E9-2) - GND3 (E8-1)	G - W-B	Shift lock signal	Shift lever P position	Below 1 V
P (E9-2) - GND3 (E8-1)	G - W-B	Shift lock signal	Shift lever not P position	Output voltage at terminal AM1 or AM2 is -2V or more.
STSW (E9-4) - GND3 (E8-1)	GR - W-B	HV control system activation request signal	Brake pedal depressed, shift lever P position, power switch is pushed once	Output voltage at terminal AM1 or AM2 is -2 V or more.
INDS (E7-15) - GND3 (E8-1)	LG - W-B	Vehicle condition signal	Brake pedal depressed, shift lever P position.	Output voltage at terminal AM1 or AM2 is -3V or more.
INDW (E7-14) - GND3 (E8-1)	P - W-B	Warning signal	Power switch on (ACC, IG)	Output voltage at terminal AM1 or AM2 is -3V or more.
SWIL (E7-25) - GND3 (E8-1)	O - W-B	Illumination signal	Light control switch TAIL or HEAD	Output voltage at terminal AM1 or AM2 is -2V or more.
HINT: 1: TMC Made 2: TMMK Made

If the result is not as specified, the ECU may have a malfunction.

Using an oscilloscope, check the signal waveform of the ECU.

Waveform 1

Waveform 1 (Reference):

WAVEFORM REFERENCE

Terminal No.	SPD (E8-9) - GND3 (E8-1)
Tool Setting	5V/DIV., 10ms./DIV.
Vehicle Condition	Driving at approx. 20 km/h (12 mph)
HINT: As the vehicle speed increases, the wavelength shortens.

Fig 2: Identifying Waveform 1

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Waveform 2

Waveform 2 (Reference):

WAVEFORM REFERENCE

Terminal No.	RDY (E8-8) - GND3 (E8-1)
Tool Setting	10V/DIV., 10ms./DIV.
Vehicle Condition	Power switch on (IG) or on (READY)

Fig 3: Identifying Oscilloscope Waveform Graph 2

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Waveform 3

Waveform 3 (Reference):

WAVEFORM REFERENCE

Terminal No.	SLP (E7-18) - GND3 (E8-1)
Tool Setting	2V/DIV., 100ms./DIV.
Vehicle Condition	Steering lock/unlock

Fig 4: Identifying ECU Connector Terminals E58

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

CHECK CERTIFICATION ECU

Disconnect the E58 ECU connector.

Measure the voltage and resistance of the wire harness side connector.

TERMINAL DESCRIPTION AND SPECIFIED CONDITION

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified Condition
+B (E58-1) - Body ground	W - Body ground	+B power supply	Always	10 to 14 V
LIN (E58-10) - Body ground	O - Body ground	LIN line	Always	10 kΩ or higher
E (E58-17) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω

If the result is not as specified, there may be a malfunction on the wire harness side.

Reconnect the E58 ECU connector.
Measure the voltage of the connector.

TERMINAL DESCRIPTION AND SPECIFIED CONDITION

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified Condition
IG (E58-18) - Body ground	LG - Body ground	Ignition power supply	Power switch on (IG)	10 to 14 V
IG (E58-18) - Body ground	LG - Body ground	Ignition power supply	Power switch off	Below 1 V

If the result is not as specified, the main body ECU may have malfunction.

CHECK HV CONTROL ECU

Fig 5: Identifying ECU Connector Terminals C64 And A61

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Disconnect the A61 and C64 ECM connectors.

Measure the voltage and resistance of the wire harness side connectors.

TERMINAL DESCRIPTION AND SPECIFIED CONDITION

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified Condition
+B1 (A61-2) - Body ground	Y - Body ground	Power source of ECU	Power switch on (IG)	10 to 14 V
+B2 (A61-1) - Body ground	Y - Body ground	Power source of ECU	Power switch on (IG)	10 to 14 V
IGSW (A61-57) - Body ground	Y - Body ground	Ignition power supply	Power switch on (IG)	10 to 14 V
E01 (C64-51) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
E02 (C64-65) - Body ground	B-W - Body ground	Ground	Always	Below 1 Ω
E03 (C64-25) - Body ground	B - Body ground	Ground	Always	Below 1 Ω
E04 (C64-48) - Body ground	W - Body ground	Ground	Always	Below 1 Ω
E1 (C64-14) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
ME01 (C64-13) - Body ground	B - Body ground	Ground	Always	Below 1 Ω

If the result is not as specified, there may be a malfunction on the wire harness side.

Reconnect the ECU connectors.

Measure the voltage of the connectors.

TERMINAL DESCRIPTION AND SPECIFIED CONDITION

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified Condition
RDY (A61-9) - E1 (C64-14)	V - W-B	HV control system on (READY) signal (output)	Power switch on (READY)	Pulse generation (See WAVEFORM 1 )
STP (A61-56) - E1 (C64-14)	W - W-B	Stop light switch signal (input)	Brake pedal depressed	7.5 to 14 V
STP (A61-56) - E1 (C64-14)	W - W-B	Stop light switch signal (input)	Brake pedal released	Below 1.5 V
ST2 (A61-37) - E1 (C64-14)	R - W-B	HV control system activation request signal	Brake pedal depressed, shift lever P position, power switch is pushed once	Output voltage at terminal AM1 or AM2 is -2 V or more.

If the result is not as specified, the ECU may have a malfunction.

Using an oscilloscope, check the signal waveform of the ECU.

Waveform 1 (Reference):

WAVEFORM REFERENCE

Terminal No.	RDY (A61-9) - E1 (C64-14)
Tool Setting	10V/DIV., 10ms./DIV.
Vehicle Condition	Power switch on (IG) or on (READY)

Fig 6: Identifying Oscilloscope Waveform Graph 2

CHECK STEERING LOCK ECU

Fig 7: Identifying Steering Lock ECU Connector Terminals

Disconnect the E51 ECU connector.

Measure the voltage and resistance of the wire harness side connector.

TERMINAL DESCRIPTION AND SPECIFIED CONDITION

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified Condition
B (E51-7) - Body ground	P - Body ground	+B power supply	Always	10 to 14 V
IG2 (E51-6) - Body ground	B - Body ground	Ignition power supply	Power switch on (IG)	10 to 14 V
IG2 (E51-6) - Body ground	B - Body ground	Ignition power supply	Power switch off	Below 1 V
GND (E51-1) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
SGND (E51-2) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω

If the result is not as specified, there may be a malfunction on the wire harness side.

Reconnect the E51 ECU connector.
Measure the voltage of the connector.

TERMINAL DESCRIPTION AND SPECIFIED CONDITION

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified Condition
SLP1 (E51-4) - GND (E51-1)	P - W-B	Steering lock actuator position signal	Steering is locked	10 to 14 V
SLP1 (E51-4) - GND (E51-1)	P - W-B	Steering lock actuator position signal	Steering is released	Below 1 V

If the result is not as specified, the ECU may have a malfunction.

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.