Inspection Procedure

HINT:

• If different DTCs that are related to a different system are output simultaneously while terminal E2 is used as a ground terminal, terminal E2 may be open.

• Read freeze frame data using the intelligent tester. Freeze frame data records the engine conditions when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was running or stopped, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.

INSPECT BATTERY CURRENT SENSOR ASSEMBLY

Component Side:

Component Side:

Battery Current Sensor

THB IB

Battery Current Sensor

THB IB

A124656E02

(a) Disconnect the B29 battery current sensor connector.

(b) Measure the resistance of the battery current sensor. Standard resistance

Tester Connection

Specified Condition

2 (VC5) - 4 (E2)

3 to 10 kQ

2 (VC5) - 3 (IB)

Below 0.5 kQ

3 (IB) - 4 (E2)

The resistance differs according to the tester type.

REPLACE BATTERY CURRENT SENSOR ASSEMBLY

CHECK HARNESS AND CONNECTOR (BATTERY CURRENT SENSOR - ECM)

Wire Harness Side:

Battery Current Sensor Connector

THB B29 IB

VCIB

EIB THB

4-

S

■7'

S

1

/ r

1--

ECM Connector

(a) Disconnect the B29 battery current sensor connector.

(b) Disconnect the B30 ECM connectors.

(c) Measure the resistance of the wire harness side connectors.

Standard resistance (Check for open)

Tester Connection

Specified Condition

B29-3 (IB) - B3G-68 (IB)

Below 1 Q

B29-2 (VC5) - B3G-69 (VCIB)

Below 1 Q

B29-4 (E2) - B3G-92 (EIB)

Below 1 Q

B29-1 (THB) - B3G-12G (THB)

Below 1 Q

Standard resistance (Check for short)

Tester Connection

Specified Condition

B29-3 (IB) or B30-68 (IB) - Body ground

10 kQ or higher

B29-2 (VC5) or B30-69 (VCIB) - Body ground

10 kQ or higher

B29-1 (THB) or B30-120 (THB) - Body ground

10 kQ or higher

REPAIR OR REPLACE HARNESS AND CONNECTOR

REPLACE ECM

P1602

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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