Inspection Procedure

HINT:

Using the intelligent tester's DATA LIST allows switch, sensor, actuator and other item values to be read without removing any parts. Reading the DATA LIST early in troubleshooting is one way to save time. NOTICE:

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

1. Warm up the engine.

2. Turn the ignition switch OFF.

3. Connect the intelligent tester to the CAN VIM. Then connect the CAN VIM to the DLC3.

4. Turn the ignition switch ON.

5. Turn the intelligent tester ON.

6. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / DATA LIST.

7. Follow the instructions on the tester and read the DATA LIST.

Item

Measurement Item/ Range (Display)

Normal Condition

Diagnostic Note

STOP LIGHT SW

Stop light switch status/ ON or OFF

• Brake pedal is depressed: ON

• Brake pedal is released: OFF

INSPECT STOP LIGHT SWITCH

(a) Remove the A3 stop light switch.

(b) Measure the resistance of the switch. Standard resistance

Tester Connection

Switch Condition

Specified Condition

1 - 2

Pin pushed (pedal released)

Below 1 Q

1 - 2

Pin not pushed (pedal depressed)

10 kQ or higher

3 - 4

Pin pushed (pedal released)

10 kQ or higher

3 - 4

Pin not pushed (pedal depressed)

Below 1 Q

REPLACE STOP LIGHT SWITCH

CHECK WIRE HARNESS (ECM - BATTERY)

Wire Harness Side

-s\

Front View

(a) Measure the voltage of the wire harness side connector. Standard voltage

Tester Connection

Condition

Specified Condition

A9-36 (STP) - Body ground

Brake pedal is depressed

10 to 14 V

A9-36 (STP) - Body ground

Brake pedal is released

Below 1 V

REPAIR OR REPLACE HARNESS AND CONNECTOR

REPLACE ECM

DTC

P1550

Battery Current Sensor Circuit

DTC

P1551

Battery Current Sensor Circuit Low

DTC

P1552

Battery Current Sensor Circuit High

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