DESCRIPTION
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PROCEDURE
1. | STOP AND START SYSTEM OPERATION CHECK |
(a) Confirm if the engine restarts in a short period of time.
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ENGINE DOES NOT RESTART | END (Explain to the customer that the problem could not be reproduced) |
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2. | CHECK VEHICLE CONDITIONS (DRIVER OPERATION) |
(a) Check if the stop and start operation conditions (driver operation) are met.
(1) The driver seat belt is fastened.
(2) The stop and start system cancel switch (eco run cancel switch assembly) has not been pressed. (Stop and start cancel indicator light is not illuminated)
(3) The driver door is closed.
OK | GO TO STEP 4 |
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3. | STOP AND START SYSTEM OPERATION CHECK (DRIVER OPERATION) |
(a) Ensure the stop and start operation conditions (driver operation) are met, and check if the stop and start system operates.
(1) The driver seat belt is fastened.
(2) The stop and start system cancel switch (eco run cancel switch assembly) has not been pressed. (Stop and start cancel indicator light is not illuminated)
(3) The driver door is closed.
(b) Perform a stop and start system operation inspection and confirm if the engine restarts in a short period of time.
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ENGINE DOES NOT RESTART | END (Explain to the customer that the problem could not be reproduced) |
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4. | CHECK FOR DTC |
(a) Read the DTCs.
Powertrain > Stop and Start > Trouble Codes Result | Proceed to |
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DTCs are output | A |
DTCs are not output | B |
HINT:
When it is suspected that the stop and start system is malfunctioning, "Stop and start system failure" is displayed on the multi-information display.
A | GO TO DTC CHART |
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5. | CHECK MULTI-INFORMATION DISPLAY |
(a) Check that there are no stop and start system operation restriction messages displayed on the multi-information display.
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NOT DISPLAYED | GO TO STEP 7 |
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6. | CHECK VEHICLE CONDITIONS (MULTI-INFORMATION DISPLAY) |
(a) After resolving the problem indicated by the stop and start system operation restriction message on the multi-information display, check if the stop and start system operates.
Multi-information Display Message | Possible Cause / (Action to be Taken) | Related Data List Item If Problem Not Resolved | |
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In Preparation |
| Engine Start Request (Brake Negative Pressure Low) | |
"For Climate Control" |
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"Battery Charging" |
| Engine Start Request (Battery Condition) | |
Stop & Start System Malfunction Visit Your Dealer | Stop & Start System may be malfunctioning | Engine Start Request (Detect DTC) |
HINT:
Depending on the vehicle, some of the items are not displayed.
(b) Confirm if the engine restarts in a short period of time.
ENGINE DOES NOT RESTART | END (Explain to the customer that the problem could not be reproduced) |
ENGINE RESTARTS | GO TO STEP 7 |
7. | READ VALUE USING GTS (ENGINE START REQUEST) |
(a) Using the Data List, check if any engine start request Data List item is indicating an engine start request value and proceed to the designated procedure as necessary.
HINT:
Battery:
Tester Display | Measurement Item | Proceed to |
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Engine Start Request (Battery Condition) | Engine start request based on battery performance | A |
Number of Engine Start Request (Battery Condition) |
Air Conditioning System:
Tester Display | Measurement Item | Proceed to |
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Engine Start Request (A/C) | Engine start request from Air conditioning system | B |
Number of Engine Start Request (A/C) | ||
Engine Start Request (A/C 2) | Engine start request from Air conditioning system |
Vehicle Operation:
Tester Display | Measurement Item | Proceed to |
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Engine Start Request (Steering) | Engine start request from power steering system | C |
Number of Engine Start Request (Steering) | ||
Engine Start Request (Brake Release) | Engine start request due to brake pedal operation | |
Engine Start Request (Brake Negative Pressure Low) | Engine start request due to low brake booster vacuum | |
Number of Engine Start Request (Brake Negative Pressure Insufficient) | ||
Engine Start Request (Accelerator) | Engine start request due to accelerator pedal operation | |
Number of Engine Start Request (Accelerator) | ||
Engine Start Request (Shift Lever) | Engine start request due to shift lever operation | |
Engine Start Request (Shift Uncertain) | Engine start request due to uncertain shift lever position | |
Number of Engine Start Request (Shift Uncertain) | ||
Engine Start Request (Shift P Position and Brake) | Number of engine start requests due to depressing the brake pedal while engine is stopped by stop and start control | |
Number of Engine Start Request (Brake ON(P range)) | ||
Engine Start Request (Clutch Pedal ON) | Engine start request by clutch pedal | |
Engine Start Request (Clutch Lower Switch ON) | Engine start request by clutch start switch assembly (for lower) |
Driver Operation:
Tester Display | Measurement Item | Proceed to |
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Number of Engine Start Request (Driver Door) | Engine start request by courtesy switch (for driver side) or driver side buckle switch | D |
Number of Engine Start Request (Driver Side Buckle) | ||
Engine Start Request (Courtesy SW or Buckle SW) | ||
Engine Start Request (Cancel SW) | Engine start request by stop and start system cancel switch (eco run cancel switch assembly) | |
Number of Engine Start Request (Cancel SW) | ||
Engine Start Request (IG Switch) | Engine start request due to opening of engine hood | |
Number of Engine Start Request (IG Switch) |
Other Systems:
Tester Display | Measurement Item | Proceed to |
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Engine Start Request (4WD and Rear Differential Lock) | Engine start request due to drive mode | E |
Number of Engine Start Request (4WD and Rear Differential Lock) | ||
Engine Start Request (ACC) | Engine start request from dynamic radar cruise control system | |
Number of Engine Start Request (ACC) | ||
Engine Start Request (IPA) | Engine start request from intelligent parking assist system | |
Number of Engine Start Request (IPA) | ||
Engine Start Request (Welcab) | Engine start request from side lift up seat system | |
Number of Engine Start Request (Welcab) | ||
Engine Start Request (Air Suspension) | Engine start request from air suspension system and side lift up seat system | |
Number of Engine Start Request (Air Suspension) | ||
Engine Start Request (ABS Vehicle Speed) | Engine start request based on vehicle speed signal from the vehicle stability control system | |
Number of Engine Start Request (ABS Vehicle Speed) | ||
Engine Start Request (ABS/VSC) | Engine start request from vehicle stability control system | |
Number of Engine Start Request (ABS/VSC) | ||
Engine Start Request (ECM) | Engine start request from ECD system | |
Number of Engine Start Request (ECM) | ||
Engine Start Request (AT/CVT) | Engine start request from automatic transmission system | |
Number of Engine Start Request (AT) |
System Malfunctions:
Tester Display | Measurement Item | Proceed to |
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Engine Start Request (Detect DTC) | Engine start request due to output of DTCs | F |
Number of Engine Start Request (Detect DTC) |
B | GO TO STEP 9 |
C | GO TO STEP 10 |
D | GO TO STEP 11 |
E | GO TO STEP 12 |
F | GO TO STEP 13 |
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8. | CHECK VEHICLE CONDITIONS (BATTERY) |
(a) Based on the respective Data List item, ensure the engine restart request conditions are not met.
HINT:
Depending on the vehicle, some of the items are not displayed.
Engine Start Request (Battery Condition) Action to be Taken and Suspected Area | Conditions |
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NEXT | GO TO STEP 14 |
9. | CHECK VEHICLE CONDITIONS (AIR CONDITIONING SYSTEM) |
(a) Based on the respective Data List item, ensure the engine restart request conditions are not met.
HINT:
Depending on the vehicle, some of the items are not displayed.
Engine Start Request (A/C) / Engine Start Request (A/C 2) Action to be Taken and Suspected Area | Conditions |
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NEXT | GO TO STEP 14 |
10. | CHECK VEHICLE CONDITIONS (VEHICLE OPERATION) |
(a) Based on the respective Data List item, ensure the engine restart request conditions are not met.
HINT:
Depending on the vehicle, some of the items are not displayed.
Engine Start Request (Steering) Action to be Taken and Suspected Area | Conditions |
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When the engine is stopped by the stop and start system and an engine start request is generated even though the steering wheel is not operated, inspect the following items:
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Action to be Taken and Suspected Area | Conditions |
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When the engine is stopped by the stop and start system and an engine start request is generated even though the brake pedal is not depressed, inspect the following items:
HINT: Depending on the vehicle, the deceleration sensor may not be built into the airbag sensor assembly, but installed separately. |
HINT:
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Action to be Taken and Suspected Area | Conditions |
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| Data List / Brake Boost Pressure (Brake booster vacuum insufficient (Under 37.5 kPa (0.4 kg/cm2, 5 psi)) (Brake booster vacuum changes in accordance with brake fluid pressure (brake pedal effort)) |
Action to be Taken and Suspected Area | Conditions |
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When the engine is stopped by the stop and start system and an engine start request is generated even though the accelerator pedal is not depressed, inspect the following items:
| Data List / Idle (OFF: Accelerator pedal depressed) |
Action to be Taken and Suspected Area | Conditions |
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When the engine is stopped by the stop and start system and an engine start request is generated even though the shift lever is not operated, inspect the following items:
| Data List/ Shift Position (Other than D) |
Action to be Taken and Suspected Area | Conditions |
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| Data List / Shift Position (Unset) HINT: Unset: When the shift lever is between 2 positions, 2 or more shift positions indicate ON. |
Action to be Taken and Suspected Area | Conditions |
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When the engine is stopped by the stop and start system and an engine start request is generated even though the brake pedal is not depressed, inspect the following items:
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Action to be Taken and Suspected Area | Conditions |
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When the engine is stopped by the stop and start system and an engine start request is generated even though the clutch pedal is not depressed, inspect the following items:
| OFF: Clutch pedal depressed |
Action to be Taken and Suspected Area | Conditions |
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When the engine is stopped by the stop and start system and an engine start request is generated even though the clutch pedal is not fully depressed, inspect the following items:
| ON: Clutch pedal depressed |
NEXT | GO TO STEP 14 |
11. | CHECK VEHICLE CONDITIONS (DRIVER OPERATION) |
(a) Based on the respective Data List item, ensure the engine restart request conditions are not met.
HINT:
Depending on the vehicle, some of the items are not displayed.
Engine Start Request (Courtesy SW or Buckle SW) / Number of Engine Start Request (Driver Side Buckle) / Number of Engine Start Request (Driver Door) Action to be Taken and Suspected Area | Conditions |
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When the engine is stopped by the stop and start system and an engine start request is generated even though the driver seat belt is not unfastened, the driver door or driver door lock is not operated, inspect the following items:
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Action to be Taken and Suspected Area | Conditions |
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When the engine is stopped by the stop and start system and an engine start request is generated even though the stop and start system cancel switch (eco run cancel switch assembly) is not pushed, inspect the following items:
| Data List / Stop&Start Cancel Switch (ON: Stop and start system cancel switch (eco run cancel switch assembly) pressed) |
Action to be Taken and Suspected Area | Conditions |
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When the engine is stopped by the stop and start system and an engine start request is generated even though the ignition switch or engine switch is not operated, inspect the following items:
| Starter operating
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NEXT | GO TO STEP 14 |
12. | CHECK VEHICLE CONDITIONS (OTHER SYSTEMS) |
(a) Based on the respective Data List item, ensure the engine restart request conditions are not met.
HINT:
Depending on the vehicle, some of the items are not displayed.
Engine Start Request (4WD and Rear Differential Lock) Action to be Taken and Suspected Area | Conditions |
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When drive mode is not being operated but the respective Data List item indicates ON, inspect the following items:
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Action to be Taken and Suspected Area | Conditions |
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When the preceding vehicle has not started off but the respective Data List item indicates ON, inspect the following items:
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Action to be Taken and Suspected Area | Conditions |
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When the intelligent parking assist system is not being operated but the respective Data List item indicates ON, inspect the following items:
| Operation of the stop and start system is prohibited due to the intelligent parking assist system. |
Action to be Taken and Suspected Area | Conditions |
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When the air suspension system or side lift up seat system is not being operated but the respective Data List item indicates ON, inspect the following items:
| Operation of the stop and start system is prohibited due to the side lift up seat system. |
Action to be Taken and Suspected Area | Conditions |
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When the air suspension system or side lift up seat system is not being operated but the respective Data List item indicates ON, inspect the following items:
| Operation of the stop and start system is prohibited due to the side lift up seat system. |
Action to be Taken and Suspected Area | Conditions |
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When the engine is stopped by the stop and start system and an engine start request is generated even though the vehicle is not moving, inspect the following items:
| Data List / Vehicle Speed (More than 0 km/h (0 mph)) |
Action to be Taken and Suspected Area | Conditions |
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Check for vehicle stability control system DTCs.
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Action to be Taken and Suspected Area | Conditions |
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Action to be Taken and Suspected Area | Conditions |
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NEXT | GO TO STEP 14 |
13. | CHECK VEHICLE CONDITIONS (SYSTEM MALFUNCTIONS) |
(a) Based on the respective Data List item, ensure the engine restart request conditions are not met.
HINT:
Depending on the vehicle, some of the items are not displayed.
Engine Start Request (Detect DTC) Action to be Taken and Suspected Area | Conditions |
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14. | STOP AND START SYSTEM OPERATION CHECK |
(a) Perform a stop and start system operation inspection and confirm if the engine restarts in a short period of time.
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HINT:
If the engine starts after a short period of time, another item may be requesting engine start.
ENGINE DOES NOT RESTART | END (Explain to the customer that the problem could not be reproduced) |
ENGINE RESTARTS | CHECK NEXT ENGINE START REQUEST |
If a key is left in the vehicle, the functions of the key left in the vehicle are temporarily suspended to prevent theft of the vehicle.
To restore the functions, press the unlock button on the functions-suspended key in the vehicle.