Integration Relay: Inspection

INSPECT INTEGRATION RELAY

Inner circuit (for 2GR-FE)

Fig 1: Integration Relay Circuit Diagram

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

for EFI MAIN relay

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

Standard Resistance

RESISTANCE SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
1A-1 - 1F-9	Battery positive (+) - 1A-1 Battery positive (+) - 1F-12 Battery negative (-) - 1F-4 Battery negative (-) - 1F-5	Below 1 Ω
1A-1 - 1F-9	Always	10 kΩ or higher
1A-1 - 1F-18	Battery positive (+) - 1A-1 Battery positive (+) - 1F-12 Battery negative (-) - 1F-4 Battery negative (-) - 1F-5	Below 1 Ω
1A-1 - 1F-18	Always	10 kΩ or higher

Fig 2: Identifying EFI Main Relay Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Text in Illustration

ILLUSTRATION LEGEND

*1	Component without harness connected (Integration Relay)

HINT:

If the result is not as specified, replace the integration relay.

for A/F relay

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

Standard Resistance

RESISTANCE SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
1E-1 - Body ground	Battery positive (+) - 1A-1 Battery positive (+) - 1F-9 Battery positive (+) - 1F-18 Battery negative (-) - 1F-4 Battery negative (-) - 1F-5	Below 1 Ω
1A-1 - 1E-1	Always	10 kΩ or higher

Text in Illustration

ILLUSTRATION LEGEND

*1	Component without harness connected (Integration Relay)

Fig 3: Identifying A/F Relay Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT:

If the result is not as specified, replace the integration relay.

for F/PMP relay (for AWD)

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

Standard Resistance

RESISTANCE SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
1A-1 - 1F-8	Always	10 kΩ or higher
1A-1 - 1F-10	Always	10 kΩ or higher
1F-8 - Body ground	Battery positive (+) - 1F-2 Battery positive (+) - 1F-12 Battery positive (+) - 1F-13 Battery negative (-) - 1F-3 Battery negative (-) - 1F-9 Battery negative (-) - 1F-18	Below 1 Ω

Fig 4: Identifying F/PMP Relay (AWD) Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Text in Illustration

ILLUSTRATION LEGEND

*1	Component without harness connected (Integration Relay)

HINT:

If the result is not as specified, replace the integration relay.

for C/OPN relay

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

Standard Resistance

RESISTANCE SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
1F-9 - Body ground	Battery positive (+) - 1A-1 Battery positive (+) - 1F-2 Battery positive (+) - 1F-12 Battery negative (-) - 1F-3 Battery negative (-) - 1F-4 Battery negative (-) - 1F-5	Below 1 Ω
1F-8 - 1F-9	Always	10 kΩ or higher
1F-18 - Body ground	Battery positive (+) - 1A-1 Battery positive (+) - 1F-2 Battery positive (+) - 1F-12 Battery negative (-) - 1F-3 Battery negative (-) - 1F-4 Battery negative (-) - 1F-5	Below 1 Ω
1F-8 - 1F-9	Always	10 kΩ or higher

Fig 5: Identifying C/OPN Relay Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Text in Illustration

ILLUSTRATION LEGEND

*1	Component without harness connected (Integration Relay)

HINT:

If the result is not as specified, replace the integration relay.

for HORN relay

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

Standard Voltage

VOLTAGE SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
1E-3 - Body ground	Battery positive (+) - 1A-1 Battery negative (-) - 1F-7	11 to 14 V

Text in Illustration

ILLUSTRATION LEGEND

*1	Component without harness connected (Integration Relay)

HINT:

If the result is not as specified, replace the integration relay.

Fig 6: Identifying HORN Relay Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

for H-LP LO (LH) relay

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

Standard Voltage

VOLTAGE SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
1D-1 - Body ground	Battery positive (+) - 1A-1 Battery negative (-) - 1F-17	11 to 14 V
1A-1 - 1D-1	Always	Below 1 V

Text in Illustration

ILLUSTRATION LEGEND

*1	Component without harness connected (Integration Relay)

HINT:

If the result is not as specified, replace the integration relay.

Fig 7: Identifying H-LP LO (LH) Relay Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

for H-LP LO (RH) relay

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

Standard Voltage

VOLTAGE SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
1D-2 - Body ground	Battery positive (+) - 1A-1 Battery negative (-) - 1F-17	11 to 14 V
1A-1 - 1D-2	Always	Below 1 V

Text in Illustration

ILLUSTRATION LEGEND

*1	Component without harness connected (Integration Relay)

HINT:

If the result is not as specified, replace the integration relay.

Fig 8: Identifying H-LP LO (RH) Relay Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

for H-LP HI (DRL) relay

for Halogen headlight

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

Standard Voltage

VOLTAGE SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
1A-1 - 1D-3	Always	Below 1 V
1A-1 - 1D-4	Always	Below 1 V
1F-15 - Body ground	Battery positive (+) - 1A-1 Battery negative (-) - 1F-15 Battery negative (-) - 1F-16	11 to 14 V
1F-15 - Body ground	Battery positive (+) - 1A-1 Battery negative (-) - 1F-15 Battery negative (-) - 1F-16	Pulse generation
1F-16 - Body ground	Battery positive (+) - 1A-1 Battery negative (-) - 1F-15 Battery negative (-) - 1F-16	11 to 14V
1F-16 - Body ground	Battery positive (+) - 1A-1 Battery negative (-) - 1F-15 Battery negative (-) - 1F-16	Pulse generation

Fig 9: Identifying H-LP HI (DRL) Relay Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

for HID headlight

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

Standard Voltage

VOLTAGE SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
1A-1 - 1D-3	Always	Below 1 V
1A-1 - 1D-4	Always	Below 1 V
1 F-15 - Body ground	Battery positive (+) - 1A-1 Battery negative (-) - 1F-15 Battery negative (-) - 1F-16	Pulse generation
1F-16 - Body ground	Battery positive (+) - 1A-1 Battery negative (-) - 1F-15 Battery negative (-) - 1F-16	Pulse generation

Text in Illustration

ILLUSTRATION LEGEND

*1	Component without harness connected (Integration Relay)

HINT:

If the result is not as specified, replace the integration relay.

Inner circuit (for 1AR-FE)

Fig 10: Inner Circuit Diagram (1AR-FE)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

for No. 2 EFI MAIN relay

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

Standard Resistance

RESISTANCE SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
1A-1 - 1F-9	Battery positive (+) - 1A-1 Battery positive (+) - 1F-12 Battery negative (-) - 1F-4 Battery negative (-) - 1F-5	Below 1 Ω
1A-1 - 1F-9	Always	10 kΩ or higher
1A-1 - 1F-18	Battery positive (+) - 1A-1 Battery positive (+) - 1F-12 Battery negative (-) - 1F-4 Battery negative (-) - 1F-5	Below 1 Ω
1A-1 - 1F-18	Always	10 kΩ or higher

Fig 11: Identifying No. 2 EFI MAIN Relay Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Text in Illustration

ILLUSTRATION LEGEND

*1	Component without harness connected (Integration Relay)

HINT:

If the result is not as specified, replace the integration relay.

for EFI MAIN relay

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

Standard Resistance

RESISTANCE SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
1E-1 - Body ground	Battery positive (+) - 1A-1 Battery positive (+) - 1F-9 Battery positive (+) - 1F-18 Battery negative (-) - 1F-4 Battery negative (-) - 1F-5	Below 1 Ω
1A-1 - 1E-1	Always	10 kΩ or higher
1E-2 - Body ground	Battery positive (+) - 1A-1 Battery positive (+) - 1F-9 Battery positive (+) - 1F-18 Battery negative (-) - 1F-4 Battery negative (-) - 1F-5	Below 1 Ω
1A-1 - 1E-2	Always	10 kΩ or higher

Fig 12: Identifying EFI Main Relay Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Text in Illustration

ILLUSTRATION LEGEND

*1	Component without harness connected (Integration Relay)

HINT:

If the result is not as specified, replace the integration relay.

for C/OPN relay

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

Standard Resistance

RESISTANCE SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
1F-9 - Body ground	Battery positive (+) - 1A-1 Battery positive (+) - 1F-2 Battery positive (+) - 1F-12 Battery negative (-) - 1F-3 Battery negative (-) - 1F-4 Battery negative (-) - 1F-5	Below 1 Ω
1F-8 - 1F-9	Always	10 kΩ or higher
1F-18 - Body ground	Battery positive (+) - 1A-1 Battery positive (+) - 1F-2 Battery positive (+) - 1F-12 Battery negative (-) - 1F-3 Battery negative (-) - 1F-4 Battery negative (-) - 1F-5	Below 1 Ω
1F-8 - 1F-9	Always	10 kΩ or higher

Fig 13: Identifying C/OPN Relay Connector Terminal

Text in Illustration

ILLUSTRATION LEGEND

*1	Component without harness connected (Integration Relay)

HINT:

If the result is not as specified, replace the integration relay.

for HORN relay

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

Standard Voltage

VOLTAGE SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
1E-3 - Body ground	Battery positive (+) - 1A-1 Battery negative (-) - 1F-7	11 to 14 V

Text in Illustration

ILLUSTRATION LEGEND

*1	Component without harness connected (Integration Relay)

HINT:

If the result is not as specified, replace the integration relay.

Fig 14: Identifying HORN Relay Connector Terminal

for H-LP LO (LH) relay

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

Standard Voltage

VOLTAGE SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
1D-1 - Body ground	Battery positive (+) - 1A-1 Battery negative (-) - 1F-17	11 to 14 V
1A-1 - 1D-1	Always	Below 1 V

Text in Illustration

ILLUSTRATION LEGEND

*1	Component without harness connected (Integration Relay)

HINT:

If the result is not as specified, replace the integration relay.

Fig 15: Identifying H-LP LO (LH) Relay Connector Terminal

for H-LP LO (RH) relay

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

Standard Voltage

VOLTAGE SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
1D-2 - Body ground	Battery positive (+) - 1A-1 Battery negative (-) - 1F-17	11 to 14 V
1A-1 - 1D-2	Always	Below 1 V

Text in Illustration

ILLUSTRATION LEGEND

*1	Component without harness connected (Integration Relay)

HINT:

If the result is not as specified, replace the integration relay.

Fig 16: Identifying H-LP LO (RH) Relay Connector Terminal

for H-LP HI (DRL) relay

for Halogen headlight

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

Standard Voltage

VOLTAGE SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
1A-1 - 1D-3	Always	Below 1 V
1A-1 - 1D-4	Always	Below 1 V
1F-15 - Body ground	Battery positive (+) - 1A-1 Battery negative (-) - 1F-15 Battery negative (-) - 1F-16	11 to 14 V
1F-15 - Body ground	Battery positive (+) - 1A-1 Battery negative (-) - 1F-15 Battery negative (-) -1F-16	Pulse generation

Fig 17: Identifying H-LP HI (DRL) Relay Connector Terminal

VOLTAGE SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
1F-16 - Body ground	Battery positive (+) - 1A-1 Battery negative (-) - 1F-15 Battery negative (-) - 1F-16	11 to 14 V
1F-16- Body ground	Battery positive (+) - 1A-1 Battery negative (-) - 1F-15 Battery negative (-) - 1F-16	Pulse generation

for HID headlight

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

Standard Voltage

VOLTAGE SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
1A-1 - 1D-3	Always	Below 1 V
1A-1 - 1D-4	Always	Below 1 V
1F-15 - Body ground	Battery positive (+) - 1A-1 Battery negative (-) - 1F-15 Battery negative (-) - 1F-16	Pulse generation
1F-16 - Body ground	Battery positive (+) - 1A-1 Battery negative (-) - 1F-15 Battery negative (-) - 1F-16	Pulse generation

Text in Illustration

ILLUSTRATION LEGEND

*1	Component without harness connected (Integration Relay)

HINT:

If the result is not as specified, replace the integration relay.