Lexus ES: Relay
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT MAIN RELAY (EFI-MAIN NO. 1)
(a) 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 between terminals 1 and 2 | 10 kΩ or higher | Battery voltage applied between terminals 1 and 2 | Below 1 Ω | If the result is not as specified, replace the main relay (EFI-MAIN NO. 1). | |
2. INSPECT MAIN RELAY (EFI-MAIN NO. 2)
(a) 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 between terminals 1 and 2 | 10 kΩ or higher | Battery voltage applied between terminals 1 and 2 | Below 1 Ω | If the result is not as specified, replace the main relay (EFI-MAIN NO. 2). | |
3. INSPECT MAIN RELAY (A/F HTR)
(a) 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 between terminals 1 and 2 | 10 kΩ or higher | Battery voltage applied between terminals 1 and 2 | Below 1 Ω | If the result is not as specified, replace the main relay (A/F HTR). | |
4. INSPECT INJECTOR RELAY (D INJ)
(a) 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 between terminals 1 and 2 | 10 kΩ or higher | Battery voltage applied between terminals 1 and 2 | Below 1 Ω | If the result is not as specified, replace the injector relay (D INJ). | |
5. INSPECT VVT RELAY (VVT)
(a) 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 between terminals 1 and 2 | 10 kΩ or higher | Battery voltage applied between terminals 1 and 2 | Below 1 Ω | If the result is not as specified, replace the VVT relay (VVT). | |
6. INSPECT NO. 2 IGNITION RELAY (IG2 NO. 1)
(a) 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 between terminals 1 and 2 | 10 kΩ or higher | Battery voltage applied between terminals 1 and 2 | Below 1 Ω | If the result is not as specified, replace the No. 2 ignition relay (IG2 NO. 1). | |
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REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during mass air flow meter sub-assembly removal/installation are shown below. Necessary Procedures After Parts
If any of the electrical components
do not operate, a fuse may have
blown. If this happens, check and
replace the fuses as necessary.
Checking and replacing fuses
1. Turn the power switch off.
2. Open the Fuse box cover.
Engine compartment: type A fuse
box
Push the tab in and lift the lid
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