DTC SUMMARY
MALFUNCTION DESCRIPTION
The hybrid vehicle control ECU detects that a safety device (interlock) is operated or that there is an open circuit in the detection circuit. (Even if an open circuit occurs while the vehicle is stopped, the system determines that the safety device was operated.)
The cause of this malfunction may be one of the following:
Detection switch system malfunctionINSPECTION DESCRIPTION
System Diagram Location |
Inspection Content | Reason |
---|---|---|
*a |
| DTC output due to improper connection or forgetting to install parts. |
*b | Inspect the detection circuit. |
DTC output due to an open circuit or improper connection (dirt, foreign matter, etc.). |
DESCRIPTION
When the hybrid vehicle control ECU detects that a safety device (interlock) is operated, such as when the service plug grip, inverter cover or rear traction motor cable (HV floor under wire) is removed, it will prohibit hybrid system operation or shut off the system main relay. The 3 safety devices are located as follows; 1 in the service plug grip, 1 on the inverter cover for the terminals of the inverter with converter assembly motor cable and generator cable, 1 on rear traction motor cable (HV floor under wire) (for AWD) that is connected to the inverter with converter assembly. If the service plug grip, inverter cover, rear traction motor cable (HV floor under wire) is removed, the interlock signal line will be open. If the vehicle is being driven, this condition will be determined to be an open circuit and the system main relays will not be shut off. When the safety devices are re-installed correctly, the system will return to normal when the ignition switch is turned to ON.
The system main relay will be turned off from the next trip after the open is detected until the condition returns to normal.
DTC No. | Detection Item |
DTC Detection Condition |
Trouble Area | MIL |
Warning Indicate | Note |
---|---|---|---|---|---|---|
P0A0A13 | High Voltage System Interlock Circuit Open |
Interlock signal line opens while the vehicle is being driven (at 5 km/h (3 mph) or more) (1 trip detection logic) |
| Does not come on |
Master Warning: Comes on |
SAE Code: P0A0D |
P0A0A92 | High Voltage System Interlock Performance or Incorrect Operation |
Either of the following conditions is met:
(1 trip detection logic) |
| Does not come on |
Master Warning: Comes on |
SAE Code: P0A0D |
CONFIRMATION DRIVING PATTERN
HINT:
After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
Click here
HINT:
WIRING DIAGRAM
CAUTION / NOTICE / HINT
CAUTION:
Refer to the precautions before inspecting high voltage circuit.
Click here
NOTICE:
Click here
HINT:
When disconnecting and reconnecting the auxiliary battery, there is an automatic learning function that completes learning when the respective system is used.
Click here
HINT:
Malfunction Content |
Relevant DTC | |
---|---|---|
Microcomputer malfunction |
P060647 | Hybrid/EV Powertrain Control Module Processor Watchdog / Safety MCU Failure |
P060687 | Hybrid/EV Powertrain Control Module Processor to Monitoring Processor Missing Message | |
P060A47 | Hybrid/EV Powertrain Control Module Monitoring Processor Watchdog / Safety MCU Failure | |
P060A87 | Hybrid/EV Powertrain Control Module Processor from Monitoring Processor Missing Message | |
P060B49 | Hybrid/EV Powertrain Control Module A/D Processing Internal Electronic Failure | |
P060B71 | Hybrid/EV Powertrain Control Module A/D Processing Actuator Stuck | |
P060B1C | Hybrid/EV Powertrain Control Module A/D Processing Voltage Out of Range | |
P1CE349 | Hybrid/EV Powertrain Control Module Monitoring Processor A/D Processing Internal Electronic Failure | |
P1CE371 | Hybrid/EV Powertrain Control Module Monitoring Processor A/D Processing Actuator Stuck | |
P1CE31C | Hybrid/EV Powertrain Control Module Monitoring Processor A/D Processing Voltage Out of Range | |
P060A45 | Hybrid/EV Powertrain Control Module Monitoring Processor Program Memory Failure | |
P060A44 | Hybrid/EV Powertrain Control Module Monitoring Processor Data Memory Failure | |
P060A29 | Hybrid/EV Powertrain Control Module Monitoring Processor Signal Invalid | |
P060A49 | Hybrid/EV Powertrain Control Module Monitoring Processor Internal Electronic Failure | |
Power source circuit malfunction |
P06881F | ECM/PCM Power Relay Sense Circuit Intermittent |
System malfunction | P1C9E9F |
Hybrid/EV System Reset Stuck Off |
PROCEDURE
1. | CLEAR DTC |
Click here
|
2. | CHECK DTC OUTPUT (HYBRID CONTROL) |
(a) Check if DTCs are output.
Powertrain > Hybrid Control > Trouble Codes
Result | Proceed to |
---|---|
P0A0A13 or P0A0A92 is output again. |
A |
Neither P0A0A13 or P0A0A92 is output again. |
B |
(b) Turn the ignition switch off.
B | ![]() | GO TO STEP 9 |
|
3. | CHECK SERVICE PLUG GRIP |
CAUTION:
Be sure to wear insulated gloves.
(a) Check if the service plug grip is installed correctly. NOTICE: Insert the service plug grip until a click sound is heard. HINT:
|
|
NG | ![]() | INSTALL PARTS CORRECTLY |
|
4. | CHECK CONNECTOR CONNECTION CONDITION (INTERLOCK CONNECTOR) |
CAUTION:
Be sure to wear insulated gloves.
(a) Check that the service plug grip is not installed.
NOTICE:
After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the repair manual because this may cause a malfunction.
(b) Check that the interlock connector at the service plug grip installation socket is connected correctly. OK: The connector is connected correctly. |
|
NG | ![]() | INSTALL PARTS CORRECTLY |
|
5. | CHECK CONNECTOR CONNECTION CONDITION (HYBRID VEHICLE CONTROL ECU CONNECTOR) |
Click here
NG | ![]() | CONNECT SECURELY |
|
6. | CHECK HYBRID VEHICLE CONTROL ECU |
CAUTION:
Be sure to wear insulated gloves.
(a) Check that the service plug grip is not installed.
NOTICE:
After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the repair manual because this may cause a malfunction.
(b) Disconnect the service plug grip (interlock switch) connector.
(c) Connect the cable to the negative (-) auxiliary battery terminal.
(d) Turn the ignition switch to ON.
(e) Measure the voltage according to the value(s) in the table below. Standard Voltage:
NOTICE: Turning the ignition switch to ON with the service plug grip removed causes other DTCs to be stored. Clear the DTCs after performing this inspection. |
|
(f) Turn the ignition switch off.
(g) Disconnect the cable from the negative (-) auxiliary battery terminal.
(h) Reconnect the service plug grip (interlock switch) connector.
NG | ![]() | GO TO STEP 10 |
|
7. | CHECK SERVICE PLUG GRIP |
CAUTION:
Be sure to wear insulated gloves.
(a) Remove the service plug grip.
Click here
(b) Check the condition of the service plug grip interlock. OK: Dirt or foreign matter has not entered the connectors, and there is no evidence of contamination. |
|
NG | ![]() | REPLACE SERVICE PLUG GRIP |
|
8. | CHECK HARNESS AND CONNECTOR (SERVICE PLUG GRIP - BODY GROUND) |
CAUTION:
Be sure to wear insulated gloves.
(a) Check that the service plug grip is not installed.
NOTICE:
After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the repair manual because this may cause a malfunction.
(b) Disconnect the service plug grip (interlock switch) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition |
Specified Condition |
---|---|---|
O214-2 (GND) - Body ground |
Ignition switch off |
Below 1 Ω |
(d) Reconnect the service plug grip (interlock switch) connector.
NG | ![]() | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
9. | CHECK CONNECTOR CONNECTION CONDITION (INTERLOCK CIRCUIT) |
(a) Check the connections of each connector.
OK:
Dirt or foreign matter has not entered the connectors, and there is no evidence of contamination.
OK | ![]() | REPLACE HYBRID VEHICLE CONTROL ECU |
NG | ![]() | REPAIR OR REPLACE CONNECTOR |
10. | CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - SERVICE PLUG GRIP) |
CAUTION:
Be sure to wear insulated gloves.
(a) Check that the service plug grip is not installed.
NOTICE:
After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the repair manual because this may cause a malfunction.
(b) Disconnect the hybrid vehicle control ECU connector.
(c) Disconnect the service plug grip (interlock switch) connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition |
Specified Condition |
---|---|---|
I249-32 (ILK) - O214-1 (ILK) |
Ignition switch off |
Below 1 Ω |
(e) Reconnect the service plug grip (interlock switch) connector.
(f) Reconnect the hybrid vehicle control ECU connector.
OK | ![]() | REPLACE HYBRID VEHICLE CONTROL ECU |
NG | ![]() | REPAIR OR REPLACE HARNESS OR CONNECTOR |