Relay On-Vehicle Inspection

INSPECT INJ NO. 2 RELAY (INJ NO. 2)
INSPECT CIRCUIT OPENING RELAY (C/OPN)
INSPECT AIR PUMP HEATER RELAY (AIR PMP HTR)
INSPECT NO. 1 INTEGRATION RELAY (IG2)
INSPECT NO. 1 INTEGRATION RELAY (EFI)
INSPECT NO. 1 INTEGRATION RELAY (A/F)
INSPECT MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK)

Relay -- On-Vehicle Inspection

1. INSPECT INJ NO. 2 RELAY (INJ NO. 2)

Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.2Tr-Fe Engine Control.Sfi System.Relay On-Vehicle Inspection

Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
Condition
Specified Condition
3 - 5
Battery voltage is not applied to terminals 1 and 2
10 kΩ or higher
Battery voltage is applied to terminals 1 and 2
Below 1 Ω
If the result is not as specified, replace the INJ NO. 2 relay.

2. INSPECT CIRCUIT OPENING RELAY (C/OPN)

Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.2Tr-Fe Engine Control.Sfi System.Relay On-Vehicle Inspection

Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
Condition
Specified Condition
3 - 5
Battery voltage is not applied to terminals 1 and 2
10 kΩ or higher
Battery voltage is applied to terminals 1 and 2
Below 1 Ω
If the result is not as specified, replace the circuit opening relay.

3. INSPECT AIR PUMP HEATER RELAY (AIR PMP HTR)

Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.2Tr-Fe Engine Control.Sfi System.Relay On-Vehicle Inspection

Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
Condition
Specified Condition
3 - 5
Battery voltage is not applied to terminals 1 and 2
10 kΩ or higher
Battery voltage is applied to terminals 1 and 2
Below 1 Ω
If the result is not as specified, replace the air pump heater relay.

4. INSPECT NO. 1 INTEGRATION RELAY (IG2)

Check the IG2 fuse.
1. Measure the resistance according to the value(s) in the table below.
  Standard Resistance:
  Tester Connection
  Condition
  Specified Condition
  IG2 fuse
  Always
  Below 1 Ω
  If the result is not as specified, replace the IG2 fuse.

Check the IG2 relay.
1. Measure the resistance according to the value(s) in the table below.
  Standard Resistance:
  Tester Connection
  Condition
  Specified Condition
  1C-1 - 1A-4
  Battery voltage not applied to terminals 1A-1 and 1A-3
  10 kΩ or higher
  Battery voltage applied to terminals 1A-1 and 1A-3
  Below 1 Ω
  Text in Illustration
  *a
  Component without harness connected
  (No. 1 Integration Relay)
  If the result is not as specified, replace the No. 1 integration relay.

5. INSPECT NO. 1 INTEGRATION RELAY (EFI)

Check the EFI fuse.
1. Measure the resistance according to the value(s) in the table below.
  Standard Resistance:
  Tester Connection
  Condition
  Specified Condition
  EFI fuse
  Always
  Below 1 Ω
  If the result is not as specified, replace the EFI fuse.

Check the EFI relay.
1. Measure the resistance according to the value(s) in the table below.
  Standard Resistance:
  Tester Connection
  Condition
  Specified Condition
  1C-1 - 1B-4
  Battery voltage not applied to terminals 1B-2 and 1B-3
  10 kΩ or higher
  Battery voltage applied to terminals 1B-2 and 1B-3
  Below 1 Ω
  Text in Illustration
  *a
  Component without harness connected
  (No. 1 Integration Relay)
  If the result is not as specified, replace the No. 1 integration relay.

6. INSPECT NO. 1 INTEGRATION RELAY (A/F)

Check the A/F fuse.
1. Measure the resistance according to the value(s) in the table below.
  Standard Resistance:
  Tester Connection
  Condition
  Specified Condition
  A/F fuse
  Always
  Below 1 Ω
  If the result is not as specified, replace the A/F fuse.

Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.2Tr-Fe Engine Control.Sfi System.Relay On-Vehicle Inspection

Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
Condition
Specified Condition
1C-1 - 1B-8
Battery voltage not applied to terminals 1B-4 and 1B-7
10 kΩ or higher
Battery voltage applied to terminals 1B-4 and 1B-7
Below 1 Ω
Text in Illustration
*a
Component without harness connected
(No. 1 Integration Relay)
If the result is not as specified, replace the No. 1 integration relay.

7. INSPECT MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK)

NOTICE:

The ACC relay and IG1 No. 1 relay are built into the main body ECU (driver side junction block).

Check the ACC fuse.
1. Measure the resistance according to the value(s) in the table below.
  Standard Resistance:
  Tester Connection
  Condition
  Specified Condition
  ACC fuse
  Always
  Below 1 Ω
  If the result is not as specified, replace the ACC fuse.

Check the ACC relay.
1. Measure the resistance according to the value(s) in the table below.
  
  Text in Illustration
  *a
  Component without harness connected
  (Main Body ECU)
  -
  -
  Standard Resistance:
  Tester Connection
  Condition
  Specified Condition
  2D-17 - 2K-1
  Battery voltage not applied to terminals 2A-48 and 2D-4
  10 kΩ or higher
  Battery voltage applied to terminals 2A-48 and 2D-4
  Below 1 Ω
  If the result is not as specified, replace the main body ECU.

Check the ECU-IG NO. 1 fuse.
1. Measure the resistance according to the value(s) in the table below.
  Standard Resistance:
  Tester Connection
  Condition
  Specified Condition
  ECU-IG No. 1 fuse
  Always
  Below 1 Ω
  If the result is not as specified, replace the ECU-IG NO. 1 fuse.

Inspect the IG1 NO. 1 relay.
1. Measure the resistance according to the value(s) in the table below.
  
  Text in Illustration
  *a
  Component without harness connected
  (Main Body ECU)
  -
  -
  Standard Resistance:
  Tester Connection
  Condition
  Specified Condition
  2A-31 - 2K-1
  Battery voltage not applied to terminals 2A-52 and 2D-4
  10 kΩ or higher
  Battery voltage applied to terminals 2A-52 and 2D-4
  Below 1 Ω
  If the result is not as specified, replace the main body ECU.