Inspection Procedure

HINT:

When using the hand-held tester or the OBD II scan tool, start the inspection from step 1. When not using the hand-held tester or the OBD II scan tool, start from step 2.

Connect hand-held tester or OBD II scan tool, and read value of No. 2 vehicle speed sensor.
PREPARATION:
1. Warm up the engine.
2. Turn the ignition switch OFF.
3. Connect the hand-held tester or the OBD II scan tool to the DLC3.
4. Turn the ignition switch ON.
5. Turn ON the hand-held tester or the OBD II scan tool.
6. When using the hand-held tester:
  Enter the following menus: DIAGNOSIS/ENHANCED OBD II/DATA LIST
7. According to the display on the tester, read the "DATA LIST".
CHECK:

Read the DTCs using the hand-held tester or the OBD II scan tool.

OK:

Fig 1: Item Display & Normal Conditions Chart
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. OK: Check for intermittent problem (see HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE ).
2. NG: Go To Next Step
Check No. 2 vehicle speed sensor.
PREPARATION:

Remove the No. 2 vehicle speed sensor.

CHECK:

Measure the resistance between the sensor terminals.

OK:
1. Resistance: 560 to 680 Ω at 20°C (68 °F)
Fig 2: Measuring Resistance Of Speed Sensor
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. NG: Replace No. 2 vehicle speed sensor.
2. OK: Go To Next Step
Check resistance between terminals SP2+ and SP2- of ECM connector.
PREPARATION:

Disconnect the E6 ECM connector.

CHECK:

Measure the resistance between the terminals SP2+ and SP2- of the ECM connector.

OK:
1. Resistance: 560 to 680 Ω at 20 °C (68 °F)
CHECK:

Measure the resistance between the terminal SP2+ and body ground, and terminal SP2- and body ground of the ECM connector respectively.

OK:
1. Resistance: 10 kΩ or higher
Fig 3: Identifying E6 ECM Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. NG: Repair or replace harness and connector between ECM and turbine speed sensor.
2. OK: Check and replace ECM (see HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE ).