DESCRIPTION
w/ Stop and Start System
While the engine is being cranked, current flows from terminal STA2 of the engine stop and start ECU to terminal STA of the ECM (STA signal).
w/o Stop and Start System
While the engine is being cranked, current flows from terminal STAR of the certification ECU (smart key ECU assembly) to the park/neutral position switch assembly and to terminal STA of the ECM (STA signal).
WIRING DIAGRAM
CAUTION / NOTICE / HINT
Note
Inspect the fuses for circuits related to this system before performing the following procedure.
After turning engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.
PROCEDURE
CHECK WHETHER ENGINE CAN BE CRANKED
Check if the engine can be cranked.
| Result | ||||||||
|---|---|---|---|---|---|---|---|---|
|
| B |
|
READ VALUE USING GTS (STARTER SW) Click here |
| C |
|
READ VALUE USING GTS (STARTER SW) Click here |
| A |
|
READ VALUE USING GTS (STARTER SW)
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Data List / Starter SW.
| Tester Display |
|---|
| Starter SW |
Check the value displayed on the GTS when the engine switch is turned on (IG) and the engine is cranked.
| OK | ||||||
|---|---|---|---|---|---|---|
|
| Result | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
| B |
|
INSPECT RELAY (ST NO. 1 RELAY) Click here |
| C |
|
CHECK STOP AND START SYSTEM Click here |
| D |
|
INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY Click here |
| A |
|
INSPECT RELAY (ST NO. 2 RELAY)
Inspect the ST NO. 2 relay.
| Result | |||
|---|---|---|---|
|
| NG |
|
REPLACE RELAY (ST NO. 2 RELAY) |
| OK |
|
INSPECT RELAY (ST NO. 1 RELAY)
Inspect the ST NO. 1 relay.
| Result | |||
|---|---|---|---|
|
| NG |
|
REPLACE RELAY (ST NO. 1 RELAY) |
| OK |
|
INSPECT STARTER ASSEMBLY
Inspect the starter assembly.
| Result | |||
|---|---|---|---|
|
| NG |
|
REPLACE STARTER ASSEMBLY Click here |
| OK |
|
CHECK HARNESS AND CONNECTOR (ST NO. 2 RELAY - STARTER ASSEMBLY)
Remove the ST NO. 2 relay from the No. 2 engine room relay block and No. 2 junction block assembly.
Disconnect the starter assembly connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
CHECK HARNESS AND CONNECTOR (ST NO. 2 RELAY - ECM)
Remove the ST NO. 2 relay from the No. 2 engine room relay block and No. 2 junction block assembly.
Disconnect the ECM connector.
Disconnect the engine stop and start ECM connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
CHECK HARNESS AND CONNECTOR (ST NO. 2 RELAY - BODY GROUND)
Remove the ST NO. 2 relay from the No. 2 engine room relay block and No. 2 junction block assembly.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
CHECK HARNESS AND CONNECTOR (BATTERY - ST NO. 2 RELAY)
Remove the ST NO. 2 relay from the No. 2 engine room relay block and No. 2 junction block assembly.
Measure the voltage according to the value(s) in the table below.
| Standard Voltage | ||||||
|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
CHECK HARNESS AND CONNECTOR (BATTERY - ST NO. 1 RELAY)
Remove the ST NO. 1 relay from the No. 2 engine room relay block and No. 2 junction block assembly.
Measure the voltage according to the value(s) in the table below.
| Standard Voltage | ||||||
|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
CHECK HARNESS AND CONNECTOR (ST NO. 1 RELAY - STARTER ASSEMBLY)
Remove the ST NO. 1 relay from the No. 2 engine room relay block and No. 2 junction block assembly.
Disconnect the starter assembly connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
CHECK HARNESS AND CONNECTOR (ST NO. 1 RELAY - BODY GROUND)
Remove the ST NO. 1 relay from the No. 2 engine room relay block and No. 2 junction block assembly.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| OK |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - STARTER ASSEMBLY) |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
INSPECT RELAY (ST NO. 1 RELAY)
Inspect the ST NO. 1 relay.
| Result | |||
|---|---|---|---|
|
| NG |
|
REPLACE RELAY (ST NO. 1 RELAY) |
| OK |
|
INSPECT STARTER ASSEMBLY
Inspect the starter assembly.
| Result | |||
|---|---|---|---|
|
| NG |
|
REPLACE STARTER ASSEMBLY Click here |
| OK |
|
CHECK HARNESS AND CONNECTOR (ST NO. 1 RELAY - STARTER ASSEMBLY)
Remove the ST NO. 1 relay from the No. 2 engine room relay block and No. 2 junction block assembly.
Disconnect the starter assembly connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
CHECK HARNESS AND CONNECTOR (ST NO. 1 RELAY - BODY GROUND)
Remove the ST NO. 1 relay from the No. 2 engine room relay block and No. 2 junction block assembly.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH ASSEMBLY - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - ST NO. 1 RELAY)
Disconnect the park/neutral position switch assembly connector.
Disconnect the certification ECU (smart key ECU assembly) connector.
Remove the ST NO. 1 relay from the No. 2 engine room relay block and No. 2 junction block assembly.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
CHECK HARNESS AND CONNECTOR (BATTERY - ST NO. 1 RELAY)
Remove the ST NO. 1 relay from the No. 2 engine room relay block and No. 2 junction block assembly.
Measure the voltage according to the value(s) in the table below.
| Standard Voltage | ||||||
|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| OK |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - STARTER ASSEMBLY) |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
CHECK STOP AND START SYSTEM
Check the stop and start system.
| Result | |||
|---|---|---|---|
|
| OK |
|
CHECK ENTRY AND START SYSTEM Click here |
| NG |
|
REPAIR OR REPLACE STOP AND START SYSTEM |
INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY
Inspect the park/neutral position switch assembly.
| Result | |||
|---|---|---|---|
|
| NG |
|
REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY Click here |
| OK |
|
CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH ASSEMBLY - ECM - ST NO. 1 RELAY - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))
Disconnect the park/neutral position switch assembly connector.
Disconnect the ECM connector.
Remove the ST NO. 1 relay from the No. 2 engine room relay block and No. 2 junction block assembly.
Disconnect the certification ECU (smart key ECU assembly) connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - PARK/NEUTRAL POSITION SWITCH ASSEMBLY - ECM)
Disconnect the certification ECU (smart key ECU assembly) connector.
Disconnect the park/neutral position switch assembly connector.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| OK |
|
CHECK ENTRY AND START SYSTEM Click here |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
READ VALUE USING GTS (STARTER SW)
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Data List / Starter SW.
| Tester Display |
|---|
| Starter SW |
Check the value displayed on the GTS when the engine switch is turned on (IG) and the engine is cranked.
| OK | ||||||
|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR (ST NO. 2 RELAY - ECM) |
READ VALUE USING GTS (STARTER SW)
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Data List / Starter SW.
| Tester Display |
|---|
| Starter SW |
Check the value displayed on the GTS when the engine switch is turned on (IG) and the engine is cranked.
| OK | ||||||
|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR (ST NO. 1 RELAY - ECM) |