Inspection Procedure

Total OBD & ECU Auto Diagnostics

TOAD Auto Diagnostics

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PERFORM ACTIVE TEST USING INTELLIGENT TESTER (OPERATE C/OPN RELAY)

(a) Connect the intelligent tester to the DLC3.

(b) Turn the ignition switch to the ON position and turn the tester on.

(c) Select the following menu items: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / FUEL PUMP / SPD.

(d) Check whether the fuel pump operation sound occurs when performing the Active Test on the tester.

Fuel pump operating sound occurs.

Go to step 2

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

CHECK ECM POWER SOURCE CIRCUIT

REPAIR OR REPLACE ECM POWER SOURCE CIRCUIT

INSPECT ENGINE ROOM J/B (C/OPN RELAY)

Engine Room J/B:

Engine Room R/B

Engine Room R/B

[□□r nnL

1 DDD J nDDD

DDDD DDDDD

GO D

JUU !□□□□□□□□□□

(a) Remove the engine room J/B from the engine room R/B.

(b) Inspect the C/OPN relay.

(1) Measure the C/OPN relay resistance. Standard resistance

Tester Connection

Specified Condition

1E-7 - 1E-13

10 kQ or higher

Below 1 Q

(Apply battery voltage between terminals 1D-12 and 1E-8)

(c) Reinstall the engine room J/B.

REPLACE ENGINE ROOM J/B

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