Inspection Procedure

CHECK HARNESS AND CONNECTOR (ECM - BODY GROUND)

Wire Harness Side:

(C2^ ECM Connector

(C2^ ECM Connector

H

fr-

1 II

/

(a) Disconnect the C24 ECM connector.

(b) Measure the resistance. Standard resistance

Tester Connection

Specified Condition

C24-104 (E1) - Body ground

Below 1 Q

(c) Reconnect the ECM connector.

REPAIR OR REPLACE HARNESS OR CONNECTOR

INSPECT ENGINE ROOM J/B (EFI RELAY VOLTAGE)

Engine Room J/B:

Engine Room J/B:

Engine Room R/B:

nn'-LnDDD.

DDDD DDDDD

GO 1

V

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

(b) Disconnect the 1E engine room J/B connector.

(c) Turn the ignition switch to the ON position.

(d) Measure the voltage between the terminals. Standard voltage

Tester Connection

Specified Condition

1E-12 - Body ground

9 to 14 V

(e) Reconnect the engine room J/B connector.

(f) Reinstall the engine room J/B.

OK

Go to step 4

INSPECT FUSE (EFI MAIN FUSE)

EFI MAIN

11

1 1

11

1 1

11

1 1

11

1 1

11

1 1

11

1 1

1 1

1 1

u

Engine Room R/B:

(a) Inspect the EFI MAIN fuse.

(1) Remove the EFI MAIN fuse from the engine room R/B.

(2) Measure the EFI MAIN fuse resistance. Standard resistance:

Below 1 Q

(3) Reinstall the EFI MAIN fuse.

REPLACE FUSE (EFI MAIN FUSE)

CHECK AND REPAIR HARNESS AND CONNECTOR (BATTERY - EFI RELAY)

INSPECT ENGINE ROOM J/B (EFI RELAY)

TTt1

TTt1

Engine Room R/B:

icon DDD

nnH__nl00.

DDDD DDDDD

UUUUUUL

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

(b) Inspect the EFI relay.

(1) Measure the EFI relay resistance. Standard resistance

Tester Connection

Specified Condition

1E-6 - 1E-12

10 kQ or higher

Below 1 Q

(Apply battery voltage between terminals 1E-9 and 1E-11)

(c) Reinstall the engine room J/B.

REPLACE ENGINE ROOM J/B

INSPECT FUSE (EFI NO. 2 FUSE)

(

\

n

11

1 1

11

1 1

II

11

1 1

11

1 1

[1

11

1 1

¡=1

n

u

1-1

1 1

¡=1

II

u

¡EE;

n

1—1

1—ii==i

Engine Room R/B:

A135067E01

(1) Remove the EFI No. 2 fuse from the engine room R/ B.

(2) Measure the EFI No. 2 fuse resistance. Standard resistance:

Below 1 Q

REPLACE FUSE (EFI NO. 2 FUSE)

CHECK HARNESS AND CONNECTOR (EFI RELAY - ECM)

Wire Harness Side:

ECM Connector

Front View

A115671E24

(a) Disconnect the A24 ECM connector.

Engine Room J/B:

Engine Room J/B:

□ [dddddI

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

(c) Disconnect the 1E engine room J/B connector.

(d) Measure the resistance between the terminals. Standard resistance (Check for open)

Tester Connection

Specified Condition

A24-2 (+B) - 1E-6

Below 1 Q

A24-1 (+B2) - 1E-6

Below 1 Q

Standard resistance (Check for short)

Tester Connection

Specified Condition

A24-2 (+B) or 1E-6 - Body ground

10 kQ or higher

A24-1 (+B2) or 1E-6 - Body ground

10 kQ or higher

(e) Reconnect the ECM connector.

(f) Reconnect the engine room J/B connector.

(g) Reinstall the engine room J/B.

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

Don't pay hundreds of dollars to find out what is wrong with your car. This book is dedicated to helping the do it yourself home and independent technician understand and use OBD-II technology to diagnose and repair their own vehicles.

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