Двигатель. COROLLA, AURIS. ZZE150 ZRE151,152 NDE150
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
READ VALUE OF INTELLIGENT TESTER (STARTER SIGNAL)
CHECK ECM (STSW TERMINAL VOLTAGE)
CHECK CLUTCH PEDAL SWITCH (INPUT VOLTAGE)
INSPECT CLUTCH PEDAL SWITCH
CHECK HARNESS AND CONNECTOR (ECM - MAIN BODY ECU)
INSPECT ST CUT RELAY
CHECK HARNESS AND CONNECTOR (ST CUT RELAY - BODY GROUND)
INSPECT IGN FUSE
CHECK HARNESS AND CONNECTOR (ST CUT RELAY - IG2 RELAY)
CHECK HARNESS AND CONNECTOR (ST CUT RELAY - ECM)
CHECK HARNESS AND CONNECTOR (ST CUT RELAY - MAIN BODY ECU)
CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - CLUTCH PEDAL SWITCH)
CHECK ST RELAY (ST RELAY VOLTAGE)
INSPECT ST RELAY
CHECK HARNESS AND CONNECTOR (ST RELAY - BODY GROUND)
CHECK ST RELAY INPUT VOLTAGE
CHECK HARNESS AND CONNECTOR (ST RELAY - STARTER)
INSPECT STARTER
INSPECT FUSE (AM2 FUSE)
СИСТЕМА ECD - Цепь функции полуавтоматического запуска двигателя |
DESCRIPTION
The cranking holding control system keeps energizing the ST relay after the ECM detects the starter signal (STSW signal) from the main body ECU until the ECM performs a judgment of "Engine started". Furthermore, the ECM outputs an accessory cut signal (ACCR signal) to the ACC relay during cranking to prevent flickering of the combination meter, clock, audio system, and other areas.When the ECM detects the STSW signal, the ECM outputs the starter relay drive signal (STAR signal) to the starter relay through the clutch pedal switch, and then the engine is cranked. When the ECM receives a stable engine speed signal (NE signal) (more specifically, when the NE signal reaches a predetermined value), the ECM stops outputting the STAR signal. Also, the ECM monitors the ST relay operating conditions based on the STA terminal voltage status.
WIRING DIAGRAM
INSPECTION PROCEDURE
- ПРИМЕЧАНИЕ:
- After replacing the ECM, the new ECM needs registration (See page Нажмите здесь) and initialization (See page Нажмите здесь).
1.READ VALUE OF INTELLIGENT TESTER (STARTER SIGNAL) |
Connect the intelligent tester to the DLC3.
Turn the ignition switch on (IG) and turn the tester on.
Enter the following menu items: Powertrain / Engine and ECT / Data List / Starter Signal.
Check the result when the ignition switch is turned on (IG).
Check the result when the engine starts.
- OK:
Ignition Switch Condition
| Tester Display (Starter Signal)
|
On (IG)
| OFF
|
Engine starts
| ON
|
- Result:
2.CHECK ECM (STSW TERMINAL VOLTAGE) |
Disconnect the ECM connector.
Depress the clutch pedal fully.
Measure the voltage between the ECM terminal and body ground when operating the ignition switch to start cranking.
- Standard voltage:
Tester Connection
| Switch Condition
| Specified Condition
|
A50-9 (STSW) - Body ground
| Engine start (does not cranking)
| 11 to 14 V
|
Reconnect the ECM connector.
3.CHECK CLUTCH PEDAL SWITCH (INPUT VOLTAGE) |
Disconnect the clutch pedal switch connector.
Measure the voltage between the terminal of the clutch pedal switch connector and body ground while cranking the engine.
- Standard voltage:
Tester Connection
| Switch Condition
| Specified Condition
|
A5-2 - Body ground
| Engine start (does not cranking)
| 11 to 14 V
|
Reconnect the clutch pedal switch connector.
4.INSPECT CLUTCH PEDAL SWITCH |
Disconnect the clutch pedal switch connector.
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Switch Condition
| Condition
| Specified Condition
|
Pushed
| Always
| Below 1 Ω
|
Not pushed
| Always
| 10 kΩ or higher
|
Reconnect the clutch pedal switch connector.
OK |
|
|
|
REPAIR OR REPLACE HARNESS OR CONNECTOR (CLUTCH PEDAL SWITCH - ECM) |
|
5.CHECK HARNESS AND CONNECTOR (ECM - MAIN BODY ECU) |
Disconnect the main body ECU connector.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
- Standard resistance (Check for open):
Tester Connection
| Condition
| Specified Condition
|
E52-4 (STSW) - A50-9 (STSW)
| Always
| Below 1 Ω
|
- Standard resistance (Check for short):
Tester Connection
| Condition
| Specified Condition
|
E52-4 (STSW) or A50-9 (STSW) - Body ground
| Always
| 10 kΩ or higher
|
Reconnect the main body ECU connector.
Reconnect the ECM connector.
| REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - MAIN BODY ECU) |
|
|
Remove the ST CUT relay from the No. 6 relay block.
Measure the resistance.
- Standard resistance:
Tester Connection
| Condition
| Specified Condition
|
3 - 5
| Battery voltage is not applied between terminals 1 and 2
| 10 kΩ or higher
|
3 - 5
| Battery voltage is applied between terminals 1 and 2
| Below 1 Ω
|
Reinstall the ST CUT relay.
7.CHECK HARNESS AND CONNECTOR (ST CUT RELAY - BODY GROUND) |
Remove the ST CUT relay from the No. 6 relay block.
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Tester Connection
| Condition
| Specified Condition
|
ST CUT relay terminal 1 - Body ground
| Always
| Below 1 Ω
|
Reinstall the ST CUT relay.
| REPAIR OR REPLACE HARNESS OR CONNECTOR (ST CUT RELAY - BODY GROUND) |
|
|
Remove the IGN fuse form the instrument panel junction block.
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Tester Connection
| Condition
| Specified Condition
|
IGN fuse
| Always
| Below 1 Ω
|
Reconnect the IGN fuse.
9.CHECK HARNESS AND CONNECTOR (ST CUT RELAY - IG2 RELAY) |
Remove the ST CUT relay from the No. 6 relay block.
Remove the integration relay from the engine room relay block.
Disconnect the integration connector.
Measure the resistance according to the value(s) in the table below.
- Standard resistance (Check for open):
Tester Connection
| Condition
| Specified Condition
|
1A-4 - ST CUT relay terminal 2
| Always
| Below 1 Ω
|
- Standard resistance (Check for short):
Tester Connection
| Condition
| Specified Condition
|
1A-4 or ST CUT relay terminal 2 - Body ground
| Always
| 10 kΩ or higher
|
Reinstall the ST CUT relay.
Reconnect the integration connector.
Reinstall the integration relay.
| REPAIR OR REPLACE HARNESS OR CONNECTOR (ST CUT RELAY - IG2 RELAY) |
|
|
10.CHECK HARNESS AND CONNECTOR (ST CUT RELAY - ECM) |
Disconnect the ECM connector.
Remove the ST CUT relay from the No. 6 relay block.
Measure the resistance according to the value(s) in the table below.
- Standard resistance (Check for open):
Tester Connection
| Condition
| Specified Condition
|
ST CUT relay terminal 3 - B31-53 (STAR)
| Always
| Below 1 Ω
|
- Standard resistance (Check for short):
Tester Connection
| Condition
| Specified Condition
|
ST CUT relay terminal 3 or B31-53 (STAR) - Body ground
| Always
| 10 kΩ or higher
|
Reconnect the ECM connector.
Reinstall the ST CUT relay.
| REPAIR OR REPLACE HARNESS OR CONNECTOR (ST CUT RELAY - ECM) |
|
|
11.CHECK HARNESS AND CONNECTOR (ST CUT RELAY - MAIN BODY ECU) |
Disconnect the main body ECU connector.
Remove the ST CUT relay from the No. 6 relay block.
Measure the resistance according to the value(s) in the table below.
- Standard resistance (Check for open):
Tester Connection
| Condition
| Specified Condition
|
ST CUT relay terminal 3 - E52-14 (STR2)
| Always
| Below 1 Ω
|
ST CUT relay terminal 5 - E52-3 (STR)
| Always
| Below 1 Ω
|
- Standard resistance (Check for short):
Tester Connection
| Condition
| Specified Condition
|
ST CUT relay terminal 3 or E52-14 (STR2) - Body ground
| Always
| 10 kΩ or higher
|
ST CUT relay terminal 5 or E52-3 (STR) - Body ground
| Always
| 10 kΩ or higher
|
Reconnect the main body ECU connector.
Reinstall the ST CUT relay.
| REPAIR OR REPLACE HARNESS OR CONNECTOR (ST CUT RELAY - MAIN BODY ECU) |
|
|
12.CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - CLUTCH PEDAL SWITCH) |
Disconnect the main body ECU connector.
Disconnect the clutch pedal switch connector.
Measure the resistance according to the value(s) in the table below.
- Standard resistance (Check for open):
Tester Connection
| Condition
| Specified Condition
|
E52-3 (STR) - A5-2
| Always
| Below 1 Ω
|
- Standard resistance (Check for short):
Tester Connection
| Condition
| Specified Condition
|
E52-3 (STR) or A5-2 - Body ground
| Always
| 10 kΩ or higher
|
Reconnect the main body ECU connector.
Reconnect the clutch pedal switch connector.
| REPAIR OR REPLACE HARNESS OR CONNECTOR (MAIN BODY ECU - CLUTCH PEDAL SWITCH) |
|
|
13.CHECK ST RELAY (ST RELAY VOLTAGE) |
Remove the ST relay from the No. 5 relay block.
Measure the voltage according to the value(s) in the table below.
- Standard voltage:
Tester Connection
| Switch Condition
| Specified Condition
|
ST relay terminal 1 - Body ground
| Engine cranking position
| 11 to 14 V
|
Reinstall the ST relay from the No. 5 relay block.
| REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - ST RELAY) |
|
|
Remove the ST relay from the No. 5 relay block.
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Tester Connection
| Condition
| Specified Condition
|
3 - 5
| Battery voltage is not applied between terminals 1 and 2
| 10 kΩ or higher
|
3 - 5
| Battery voltage is applied between terminals 1 and 2
| Below 1 Ω
|
Reinstall the ST relay.
15.CHECK HARNESS AND CONNECTOR (ST RELAY - BODY GROUND) |
Remove the ST relay from the No. 5 relay block.
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Tester Connection
| Condition
| Condition
|
ST relay terminal 2 - Body ground
| Always
| Below 1 Ω
|
Reinstall the ST relay.
| REPAIR OR REPLACE HARNESS OR CONNECTOR (ST RELAY - BODY GROUND) |
|
|
16.CHECK ST RELAY INPUT VOLTAGE |
Remove the ST relay from the No. 5 relay block.
Measure the voltage according to the value(s) in the table below.
- Standard voltage:
Tester Connection
| Switch Condition
| Specified Condition
|
ST relay terminal 5 - Body ground
| Ignition switch ON (IG)
| 11 to 14 V
|
Reinstall the ST relay.
17.CHECK HARNESS AND CONNECTOR (ST RELAY - STARTER) |
Remove the ST relay from the No. 5 relay block.
Disconnect the starter connector.
Measure the resistance according to the value(s) in the table below.
- Standard resistance (Check for open):
Tester Connection
| Condition
| Specified Condition
|
ST relay terminal 3 - B8-1
| Always
| Below 1 Ω
|
- Standard resistance (Check for short):
Tester Connection
| Condition
| Specified Condition
|
ST relay terminal 3 or B8-1 - Body ground
| Always
| 10 kΩ or higher
|
Reinstall the ST relay.
Reconnect the starter connector.
| REPAIR OR REPLACE HARNESS OR CONNECTOR (ST RELAY STARTER) |
|
|
Inspect the starter (See page Нажмите здесь).
OK |
|
|
|
REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - STARTER) |
|
19.INSPECT FUSE (AM2 FUSE) |
Remove the AM2 fuse from engine room relay block.
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Tester Connection
| Condition
| Specified Condition
|
AM2 fuse
| Always
| Below 1 Ω
|
Reinstall the AM2 fuse.
OK |
|
|
|
REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - ST RELAY) |
|