Lexus ES: Inspection

Lexus ES (XZ10) Service Manual / Engine & Hybrid System / A25a-fks (fuel) / Fuel Sender Gauge Assembly / Inspection

INSPECTION

PROCEDURE

1. INSPECT FUEL SENDER GAUGE ASSEMBLY

CAUTION:

Perform the inspection in a well-ventilated area.

Do not perform the inspection near an open flame.

(a) Check that the float moves smoothly between F and E.

(b) Check the fuel sender gauge assembly voltage.

(1) Apply 5 V between terminals 2 and 3.

NOTICE:

Be careful when connecting the leads, as the fuel sender gauge assembly may be damaged if the leads are connected to the wrong terminals.
Do not apply more than 6 V to terminals 2 or 3.

HINT:

If a stable power supply is not available, connect 4 nickel-metal hydride batteries (1.2 V each) or equivalent in series.

Component without harness connected

(Fuel Sender Gauge Assembly)

Voltage Applied between Terminals

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

Standard Voltage:

Tester Connection	Float Level	Specified Condition
1 - 2	F	4.255 to 4.605 V*
	Between F and E	0.345 to 4.605 V* (Gradually changes)
	E	0.345 to 0.695 V*

*: The output voltage changes depending on the voltage applied to the terminals.

Output voltage (F) = (0.851 x Voltage applied to terminals) to (0.921 x Voltage applied to terminals)

Output voltage (E) = (0.069 x Voltage applied to terminals) to (0.139 x Voltage applied to terminals)

If the result is not as specified, replace the fuel sender gauge assembly.

*a	Component without harness connected (Fuel Sender Gauge Assembly)

2. INSPECT NO. 2 FUEL SENDER GAUGE ASSEMBLY

CAUTION:

Perform the inspection in a well-ventilated area.

Do not perform the inspection near an open flame.

(a) Check that the float moves smoothly between F and E.

(b) Check the No. 2 fuel sender gauge assembly voltage.

(1) Apply 5 V between terminals 2 and 3.

NOTICE:

Be careful when connecting the leads, as the No. 2 fuel sender gauge assembly may be damaged if the leads are connected to the wrong terminals.
Do not apply more than 6 V to terminals 2 or 3.

HINT:

If a stable power supply is not available, connect 4 nickel-metal hydride batteries (1.2 V each) or equivalent in series.

Component without harness connected

(No. 2 Fuel Sender Gauge Assembly)

Voltage Applied between Terminals

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

Standard Voltage:

Tester Connection	Float Level	Specified Condition
1 - 2	F	4.255 to 4.605 V*
	Between F and E	0.345 to 4.605 V* (Gradually changes)
	E	0.345 to 0.695 V*

*: The output voltage changes depending on the voltage applied to the terminals.

Output voltage (F) = (0.851 x Voltage applied to terminals) to (0.921 x Voltage applied to terminals)

Output voltage (E) = (0.069 x Voltage applied to terminals) to (0.139 x Voltage applied to terminals)

If the result is not as specified, replace the No. 2 fuel sender gauge assembly.

*a	Component without harness connected (No. 2 Fuel Sender Gauge Assembly)

SEE MORE:

Problem Symptoms Table

PROBLEM SYMPTOMS TABLE NOTICE: After replacing the radio receiver assembly of vehicles subscribed to pay-type satellite radio broadcasts, registration of the XM radio ID is necessary (w/ SXM Function). If the DCM (telematics transceiver) has been replaced, perform the DCM Activation procedure.

Installation

INSTALLATION PROCEDURE 1. INSTALL ENGINE SWITCH (a) Attach the claw to install the engine switch as shown in the illustration. Install in this Direction 2. INSTALL SWITCH BASE Click here 3. INSTALL INSTRUMENT CLUSTER FINISH PANEL ASSEMBLY Click here 4. INSTALL NO. 1 INSTRUMENT CLUSTER

Lexus ES: Inspection

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Installation

Fuel System

Precaution

SEE MORE:

Problem Symptoms Table

Installation