Relay On-Vehicle Inspection

Engine Hybrid System. Land Cruiser. Urj200, 202 Grj200 Vdj200

1Ur-Fe Engine Control. Land Cruiser. Urj200, 202 Grj200 Vdj200

INSPECT MAIN BODY ECU
INSPECT AIR INJECTION VSV RELAY (AI-VSV)
INSPECT INTEGRATION RELAY

Relay -- On-Vehicle Inspection

1. INSPECT MAIN BODY ECU

Land Cruiser. Urj200, 202 Grj200 Vdj200.1Ur-Fe Engine Control.Sfi System.Relay On-Vehicle Inspection

Text in Illustration
*a	Component without harness connected (Main Body ECU)	-	-

NOTICE:

The IG1 No. 1 relay, IG1 No. 2 relay and IG1 No. 3 relay are built into the main body ECU.
Before performing the relay inspections for the relays of the main body ECU, inspect the ECU-IG No. 1, ECU-IG No. 2 and ECU-IG No. 3 fuses.

Inspect the IG1 No. 1 relay.
1. Measure the resistance according to the value(s) in the table below.
  Standard Resistance:
  Tester Connection
  Condition
  Specified Condition
  2G-1 - 2H-24
  Battery voltage is not applied to terminals 2I-18 and 2J-1
  10 kΩ or higher
  Battery voltage is applied to terminals 2I-18 and 2J-1
  Below 1 Ω
  If the result is not as specified, replace the main body ECU.

Inspect the IG1 No. 2 relay.
1. Measure the resistance according to the value(s) in the table below.
  Standard Resistance:
  Tester Connection
  Condition
  Specified Condition
  2G-1 - 2H-14
  Battery voltage is not applied to terminals 2I-18 and 2J-1
  10 kΩ or higher
  Battery voltage is applied to terminals 2I-18 and 2J-1
  Below 1 Ω
  If the result is not as specified, replace the main body ECU.

Inspect the IG1 No. 3 relay.
1. Measure the resistance according to the value(s) in the table below.
  Standard Resistance:
  Tester Connection
  Condition
  Specified Condition
  2G-1 - 2H-16
  Battery voltage is not applied to terminals 2I-18 and 2J-1
  10 kΩ or higher
  Battery voltage is applied to terminals 2I-18 and 2J-1
  Below 1 Ω
  If the result is not as specified, replace the main body ECU.

2. INSPECT AIR INJECTION VSV RELAY (AI-VSV)

Land Cruiser. Urj200, 202 Grj200 Vdj200.1Ur-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 relay.

3. INSPECT INTEGRATION RELAY

Land Cruiser. Urj200, 202 Grj200 Vdj200.1Ur-Fe Engine Control.Sfi System.Relay On-Vehicle Inspection

Text in Illustration
*A	for LHD	*B	for RHD
*a	Component without harness connected (Integration Relay)	-	-

NOTICE:

The IG2 MAIN relay, FUEL PMP relay, EFI MAIN No. 1 relay, A/F relay and AIR PMP HTR relay are built into the integration relay.
Before performing the relay inspections for the relays of the integration relay, inspect the IG2 MAIN, FUEL PMP, EFI No. 2, EFI MAIN No. 1, A/F HTR and AIR PMP HTR fuses.

Inspect the IG2 MAIN relay.
1. Measure the resistance according to the value(s) in the table below.
  
  Standard Resistance:
  for LHD:
  Tester Connection
  Condition
  Specified Condition
  1Y-1 - 1R-1
  Battery voltage is not applied to terminals 1R-2 and 1S-4
  10 kΩ or higher
  Battery voltage is applied to terminals 1R-2 and 1S-4
  Below 1 Ω
  for RHD:
  Tester Connection
  Condition
  Specified Condition
  1X-1 - 1R-1
  Battery voltage is not applied to terminals 1R-2 and 1S-4
  10 kΩ or higher
  Battery voltage is applied to terminals 1R-2 and 1S-4
  Below 1 Ω
  If the result is not as specified, replace the integration relay.

Inspect the FUEL PMP relay.

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

Standard Resistance:

for LHD:
Tester Connection	Condition	Specified Condition
1Y-1 - 1R-6	Battery voltage is not applied to terminals 1R-7 and 1S-12	10 kΩ or higher
1Y-1 - 1R-6	Battery voltage is applied to terminals 1R-7 and 1S-12	Below 1 Ω

for RHD:
Tester Connection	Condition	Specified Condition
1X-1 - 1R-6	Battery voltage is not applied to terminals 1R-7 and 1S-12	10 kΩ or higher
1X-1 - 1R-6	Battery voltage is applied to terminals 1R-7 and 1S-12	Below 1 Ω

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

Inspect the EFI MAIN No. 1 relay.
1. Measure the resistance according to the value(s) in the table below.
  
  Standard Resistance:
  for LHD:
  Tester Connection
  Condition
  Specified Condition
  1Y-1 - 1S-1
  Battery voltage is not applied to terminals 1S-8 and 1S-4
  10 kΩ or higher
  Battery voltage is applied to terminals 1S-8 and 1S-4
  Below 1 Ω
  for RHD:
  Tester Connection
  Condition
  Specified Condition
  1X-1 - 1S-1
  Battery voltage is not applied to terminals 1S-8 and 1S-4
  10 kΩ or higher
  Battery voltage is applied to terminals 1S-8 and 1S-4
  Below 1 Ω
  If the result is not as specified, replace the integration relay.

Inspect the A/F relay.
1. Measure the resistance according to the value(s) in the table below.
  
  Standard Resistance:
  for LHD:
  Tester Connection
  Condition
  Specified Condition
  1Y-1 - 1S-3
  Battery voltage is not applied to terminals 1S-1 and 1S-4
  10 kΩ or higher
  Battery voltage is applied to terminals 1S-1 and 1S-4
  Below 1 Ω
  for RHD:
  Tester Connection
  Condition
  Specified Condition
  1X-1 - 1S-3
  Battery voltage is not applied to terminals 1S-1 and 1S-4
  10 kΩ or higher
  Battery voltage is applied to terminals 1S-1 and 1S-4
  Below 1 Ω
  If the result is not as specified, replace the integration relay.

Inspect the AIR PMP HTR relay.
1. Measure the resistance according to the value(s) in the table below.
  
  Standard Resistance:
  for LHD:
  Tester Connection
  Condition
  Specified Condition
  1Y-1 - 1P-9
  Battery voltage is not applied to terminals 1Y-1 and 1P-10
  10 kΩ or higher
  for RHD:
  Tester Connection
  Condition
  Specified Condition
  1X-1 - 1P-9
  Battery voltage is not applied to terminals 1X-1 and 1P-10
  10 kΩ or higher
  
  Standard Voltage:
  for LHD:
  Tester Connection
  Condition
  Specified Condition
  1P-9 - Battery negative (-)
  Battery positive (+) → 1Y-1
  Battery negative (-) → 1P-10
  11 to 14 V
  for RHD:
  Tester Connection
  Condition
  Specified Condition
  1P-9 - Battery negative (-)
  Battery positive (+) → 1X-1
  Battery negative (-) → 1P-10
  11 to 14 V
  If the result is not as specified, replace the integration relay.