DESCRIPTION
The engine stop and start ECU can detect open circuits when signals such as the boost, standby request or overheating signal cannot be sent to the backup boost converter control IC from the stop and start control IC in the engine stop and start ECU.
If a CPU duty malfunction is detected, the engine stop and start ECU stores DTC P060629 and blinks the stop and start cancel indicator.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Warning Indicate | Memory | Note |
---|---|---|---|---|---|---|
P060629 | Backup Boost Converter "A" Control CPU Signal Invalid | The following condition continues for 1 second or more (2 trip detection logic):
|
| Blinks | DTC stored | SAE Code: P0606 |
CONFIRMATION DRIVING PATTERN
HINT:
In this case, let the vehicle idle to complete the refresh charge. The refresh charge is complete when the Data List item Status of Auxiliary Battery Charge Control changes from "Refresh Charge Mode". (Usually, idling the engine for 5 to 60 minutes with the auxiliary battery fluid temperature at 11°C (52°F) or higher, the refresh charge will be completed.)
If the engine is started with the hood open, the system determines that a jump start has occurred. Therefore, make sure that the hood is closed before starting the engine and driving the vehicle.
CONFIRMATION AFTER TROUBLESHOOTING
(a) Clear the DTCs.
Powertrain > Stop and Start > Clear DTCs(b) Start the engine and warm it up.
(c) Drive the vehicle at 7 km/h (4 mph) or more.
CAUTION:
When performing Confirmation Driving Pattern, obey all speed limits and traffic laws.
(d) Stop the vehicle, move the shift lever to neutral and release the clutch pedal.
(e) Keep the engine stopped by stop and start control for 1 second or more.
(f) Depress the clutch pedal and start the engine.
HINT:
If the engine cranks slowly when the engine is restarted, it can be determined that the auxiliary battery voltage is low.
(g) Check that DTCs are not output.
Powertrain > Stop and Start > Trouble CodesSTOP AND START SYSTEM OPERATION CHECK
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WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
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HINT:
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PROCEDURE
1. | CHECK HARNESS AND CONNECTOR (ENGINE STOP AND START ECU - AUXILIARY BATTERY) |
(a) Disconnect the engine stop and start ECU connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection | Condition | Specified Condition |
---|---|---|
A66-1 (BIN2) - Body ground | Always | 9.5 to 14 V |
A66-3 (BIN1) - Body ground | Always | 9.5 to 14 V |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
2. | CHECK HARNESS AND CONNECTOR (ENGINE STOP AND START ECU - BODY GROUND) |
(a) Disconnect the A66 engine stop and start ECU connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
A66-2 (GND2) - Body ground | Always | Below 1 Ω |
A66-8 (GND1) - Body ground | Always | Below 1 Ω |
OK | REPLACE ENGINE STOP AND START ECU |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |
To use the auxiliary key, press the knob and pull out the auxiliary key from the smart key.