Relay (W/ Urea Scr System) On-Vehicle Inspection

INSPECT NO. 1 INTEGRATION RELAY
INSPECT DCU RELAY (DCU)
INSPECT NOx PM RELAY (NOx PM)

Relay (W/ Urea Scr System) -- On-Vehicle Inspection

1. INSPECT NO. 1 INTEGRATION RELAY

Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.1Gd-Ftv Engine Control.Ecd System.Relay (W/ Urea Scr System) On-Vehicle Inspection

Text in Illustration
*a	Component without harness connected (No. 1 Integration Relay)	-	-

NOTICE:

The EDU relay, IG2 relay, EFI MAIN1 relay and EFI MAIN2 relay are built into the No. 1 integration relay.
Before performing the relay inspections for the relays of the No. 1 integration relay, inspect the EDU, IG2, EFI-MAIN NO. 1 and EFI-MAIN NO. 2 fuses.

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

Inspect 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 - 1J-7
  Battery voltage not applied to terminals 1J-6 and 1J-3
  10 kΩ or higher
  Battery voltage applied to terminals 1J-6 and 1J-3
  Below 1 Ω
  If the result is not as specified, replace the No. 1 integration relay.

Inspect the EFI MAIN1 relay.
1. Measure the resistance according to the value(s) in the table below.
  Standard Resistance:
  Tester Connection
  Condition
  Specified Condition
  1C-1 - 1J-10
  Battery voltage not applied to terminals 1K-7 and 1J-3
  10 kΩ or higher
  Battery voltage applied to terminals 1K-7 and 1J-3
  Below 1 Ω
  If the result is not as specified, replace the No. 1 integration relay.

Inspect the EFI MAIN2 relay.
1. Measure the resistance according to the value(s) in the table below.
  Standard Resistance:
  Tester Connection
  Condition
  Specified Condition
  1C-1 - 1J-12
  Battery voltage not applied to terminals 1J-10 and 1J-3
  10 kΩ or higher
  Battery voltage applied to terminals 1J-10 and 1J-3
  Below 1 Ω
  If the result is not as specified, replace the No. 1 integration relay.

2. INSPECT DCU RELAY (DCU)

Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.1Gd-Ftv Engine Control.Ecd System.Relay (W/ Urea Scr System) 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 not applied to terminals 1 and 2
10 kΩ or higher
Battery voltage applied to terminals 1 and 2
Below 1 Ω
If the result is not as specified, replace the DCU relay.

3. INSPECT NOx PM RELAY (NOx PM)

Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.1Gd-Ftv Engine Control.Ecd System.Relay (W/ Urea Scr System) 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 not applied to terminals 1 and 2
10 kΩ or higher
Battery voltage applied to terminals 1 and 2
Below 1 Ω
If the result is not as specified, replace the NOx PM relay.