FUEL GAUGE READING IS NOT CORRECT [INSTRUMENT CLUSTER]

id0903d5012800

Possible cause

2WD

• Instrument cluster malfunction

• Rear body control module (RBCM) malfunction

• Fuel gauge sender unit malfunction

• Open or short circuit in wiring harness between fuel gauge sensor unit and rear body control module (RBCM)

4WD

• Instrument cluster malfunction

• Rear body control module (RBCM) malfunction

• Fuel gauge sender unit (main/sub) malfunction

• Open or short circuit in wiring harness between fuel gauge sender unit (main/sub) and rear body control module (RBCM)

Diagnostic Procedure

Step

Inspection

Action

1

PERFORM CAN MALFUNCTION DIAGNOSIS AND DTC INSPECTION

•  Perform the CAN malfunction diagnosis according to the recommendation of FOREWORD [INSTRUMENT CLUSTER] malfunction diagnosis, and if there is no CAN malfunction, perform inspection for DTCs.
(See DTC INSPECTION [INSTRUMENT CLUSTER].)

•  Is the DTC displayed?

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [INSTRUMENT CLUSTER].)

No

Go to the next step.

2

Inspection of instrument cluster

•  Perform inspection of the fuel gauge/LCD display referring to the instrument cluster inspection.
(See INSTRUMENT CLUSTER INSPECTION.)

•  Is the display normal?

Yes

Go to the next step.

No

Replace the instrument cluster.

(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)

3

DETERMINE IF MALFUNCTION CAUSE IS FUEL GAUGE SENDER

•  Display the following rear body control module (RBCM) PIDs using the M-MDS.

―  FUEL_SEN_M

―  FUEL_SEN_S (4WD)

•  Verify the voltage in the display monitor while shaking the vehicle.

•  Does the voltage change?

Yes

Go to the next step.

No

Go to Step 5.

4

DETERMINE IF MALFUNCTION CAUSE IS REAR BODY CONTROL MODULE (RBCM)

•  Display the following instrument cluster PIDs using the M-MDS.

―  FUEL_SEN_M

―  FUEL_SEN_S (4WD)

•  Verify the resistance in the display monitor while shaking the vehicle.

•  Does the resistance change?

Yes

Replace the instrument cluster.

(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)

No

Replace the rear body control module (RBCM).

(See REAR BODY CONTROL MODULE (RBCM) REMOVAL/INSTALLATION.)

5

INSPECT FUEL GAUGE SENDER UNIT

•  Switch the ignition off (LOCK).

•  Inspect the fuel gauge sender unit (2WD) or the fuel gauge sender unit (main/sub) (4WD).
(See FUEL GAUGE SENDER UNIT INSPECTION [2WD].)

(See FUEL GAUGE SENDER UNIT INSPECTION [4WD].)

•  Is the fuel gauge sender unit (2WD) or the fuel gauge sender unit (main/sub) (4WD) normal?

Yes

Inspect the wiring harness between the fuel gauge sender unit (2WD) or the fuel gauge sender unit (main/sub) (4WD) and the rear body control module (RBCM), and repair or replace the malfunctioning part.

No

Replace the fuel gauge sender unit (2WD) or the fuel gauge sender unit (main/sub) (4WD).

(See FUEL GAUGE SENDER UNIT REMOVAL/INSTALLATION [2WD].)

(See FUEL GAUGE SENDER UNIT REMOVAL/INSTALLATION [4WD].)

Step	Inspection	Action
1	PERFORM CAN MALFUNCTION DIAGNOSIS AND DTC INSPECTION • Perform the CAN malfunction diagnosis according to the recommendation of FOREWORD [INSTRUMENT CLUSTER] malfunction diagnosis, and if there is no CAN malfunction, perform inspection for DTCs. (See DTC INSPECTION [INSTRUMENT CLUSTER].) • Is the DTC displayed?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [INSTRUMENT CLUSTER].)
1		No	Go to the next step.
2	Inspection of instrument cluster • Perform inspection of the fuel gauge/LCD display referring to the instrument cluster inspection. (See INSTRUMENT CLUSTER INSPECTION.) • Is the display normal?	Yes	Go to the next step.
2		No	Replace the instrument cluster. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
3	DETERMINE IF MALFUNCTION CAUSE IS FUEL GAUGE SENDER • Display the following rear body control module (RBCM) PIDs using the M-MDS. ― FUEL_SEN_M ― FUEL_SEN_S (4WD) • Verify the voltage in the display monitor while shaking the vehicle. • Does the voltage change?	Yes	Go to the next step.
3		No	Go to Step 5.
4	DETERMINE IF MALFUNCTION CAUSE IS REAR BODY CONTROL MODULE (RBCM) • Display the following instrument cluster PIDs using the M-MDS. ― FUEL_SEN_M ― FUEL_SEN_S (4WD) • Verify the resistance in the display monitor while shaking the vehicle. • Does the resistance change?	Yes	Replace the instrument cluster. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
4		No	Replace the rear body control module (RBCM). (See REAR BODY CONTROL MODULE (RBCM) REMOVAL/INSTALLATION.)
5	INSPECT FUEL GAUGE SENDER UNIT • Switch the ignition off (LOCK). • Inspect the fuel gauge sender unit (2WD) or the fuel gauge sender unit (main/sub) (4WD). (See FUEL GAUGE SENDER UNIT INSPECTION [2WD].) (See FUEL GAUGE SENDER UNIT INSPECTION [4WD].) • Is the fuel gauge sender unit (2WD) or the fuel gauge sender unit (main/sub) (4WD) normal?	Yes	Inspect the wiring harness between the fuel gauge sender unit (2WD) or the fuel gauge sender unit (main/sub) (4WD) and the rear body control module (RBCM), and repair or replace the malfunctioning part.
5		No	Replace the fuel gauge sender unit (2WD) or the fuel gauge sender unit (main/sub) (4WD). (See FUEL GAUGE SENDER UNIT REMOVAL/INSTALLATION [2WD].) (See FUEL GAUGE SENDER UNIT REMOVAL/INSTALLATION [4WD].)