Toyota Yaris: Stop And Start System / Engine Hood Courtesy Switch Circuit

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Engine & Hybrid System / Stop And Start / Stop And Start System / Engine Hood Courtesy Switch Circuit

DESCRIPTION

The engine stop and start ECU detects whether the engine hood is open or closed based on a signal received from the engine hood courtesy switch built into the hood lock assembly.

  • The engine stop and start ECU prohibits starting of the engine by stop and start control and changes the mode to "stalled" if the engine hood is open with the clutch pedal is released while the engine is stopped by stop and start control.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

For wire harness and connector inspection procedures and precautions, refer to

PROCEDURE

1.

READ VALUE USING GTS (HOOD COURTESY SWITCH)

NOTICE:

Before performing this step, check that the engine hood can be opened by pulling the hood lock control cable.

Powertrain > Stop and Start > Data List

Tester Display

Hood Courtesy Switch

(a) According to the display on the GTS, read the Data List.

OK:

GTS Display

Condition

Normal Condition

Hood Courtesy Switch

Engine hood closed

ON

Engine hood open

OFF

OK

CHECK AND ADJUST HOOD LOCK ASSEMBLY FITTING (ADJUST HOOD)

NG

2.

INSPECT ENGINE HOOD COURTESY SWITCH (HOOD LOCK ASSEMBLY)

(a) Inspect the engine hood courtesy switch (hood lock assembly).

Click here

NG

REPLACE ENGINE HOOD COURTESY SWITCH (HOOD LOCK ASSEMBLY)

OK

3.

CHECK HARNESS AND CONNECTOR (ENGINE HOOD COURTESY SWITCH (HOOD LOCK ASSEMBLY) - BODY GROUND)

(a) Disconnect the A58 engine hood courtesy switch (hood lock assembly) connector.

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

A58-2 (E) - Body ground

Always

Below 1 Ω

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

4.

CHECK HARNESS AND CONNECTOR (ENGINE STOP AND START ECU - ENGINE HOOD COURTESY SWITCH (HOOD LOCK ASSEMBLY))

(a) Disconnect the A67 engine stop and start ECU connector.

(b) Disconnect the A58 engine hood courtesy switch (hood lock assembly) connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

A67-7 (BNT1) - A58-1 (+)

Always

Below 1 Ω

A67-7 (BNT1) - Body ground

Always

10 kΩ or higher

A58-1 (+) - Body ground

Always

10 kΩ or higher

OK

CHECK AND ADJUST HOOD LOCK ASSEMBLY FITTING (ADJUST HOOD)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

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    Other information:

    Toyota Yaris XP210 (2020-2022) Reapir and Service Manual: Diagnostic Trouble Code Chart


    D..

    Toyota Yaris XP210 (2020-2022) Reapir and Service Manual: Components


    C..

    Categories

    Break-In Period

    No special break-in is necessary, but a few precautions in the first 600 miles (1,000 km) may add to the performance, economy, and life of the vehicle.

    Do not race the engine. Do not maintain one constant speed, either slow or fast, for a long period of time. Do not drive constantly at full-throttle or high engine rpm for extended periods of time. Avoid unnecessary hard stops. Avoid full-throttle starts.

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