DESCRIPTION
The battery ECU assembly alerts the driver and performs fail-safe control based on malfunction signals.
If the HV battery is discharged excessively or the hybrid battery system is malfunctioning, this DTC will be stored.
HINT:
If the HV battery voltage has dropped due to a malfunction in other components, such as the inverter with converter assembly or the hybrid vehicle transaxle assembly, recharging the HV battery will be able to restore the voltage. If the HV battery voltage has dropped excessively after the vehicle was left for a long time, the HV battery will need to be replaced.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate |
---|---|---|---|---|---|
P300016 | Hybrid/EV Battery Control System Circuit Voltage Below Threshold | Either of the following conditions is met: A malfunction signal is received from the battery ECU assembly. The voltage of any HV battery cell has decreased excessively. (1 trip detection logic) |
| Does not come on | Master Warning Light: Comes on |
DTC No. | Data List |
---|---|
P300016 |
|
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:
CAUTION / NOTICE / HINT
HINT:
PROCEDURE
1. | CHECK DTC OUTPUT (HV BATTERY, HYBRID CONTROL) |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Enter the following menus: Powertrain / HV Battery and Hybrid Control / Trouble Codes.
(d) Check for DTCs.
Powertrain > HV Battery > Trouble Codes Powertrain > Hybrid Control > Trouble Codes Result | Proceed to |
---|---|
"P300000 or P300016" only is output. | A |
DTCs except "P300000 or P300016" of hybrid battery system are output. | B |
DTCs except "P300000 or P300016" of hybrid control system are output. | C |
(e) Turn the power switch off.
B | GO TO DTC CHART (HYBRID BATTERY SYSTEM) |
C | GO TO DTC CHART (HYBRID CONTROL SYSTEM) |
|
2. | CHECK DTC OUTPUT (ENGINE) |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Enter the following menus: Powertrain / Engine / Trouble Codes.
(d) Check for DTCs.
Powertrain > Engine > Trouble Codes Result | Proceed to |
---|---|
No DTCs are output. | A |
DTCs are output. | B |
(e) Turn the power switch off.
B | GO TO DTC CHART (SFI SYSTEM) |
|
3. | CHECK ENGINE START |
(a) Turn the power switch on (READY).
(b) Check if the engine starts.
NOTICE:
Do not turn the power switch on (READY) repeatedly after duplicating the problem symptom indicated by DTC P300016 and clearing the DTCs. This may cause another problem to occur.
HINT:
Depressing the accelerator pedal with the shift lever in P will cause the engine to start.
Result | Proceed to |
---|---|
The engine does not start. | A |
The engine starts. | B |
(c) Turn the power switch off.
B | LEAVE VEHICLE WITH THE SHIFT LEVER IN P, AND CHARGE HV BATTERY BY IDLING UNTIL IDLING STOPS |
|
4. | CHECK CRANKSHAFT PULLEY REVOLUTION (P POSITION) |
(a) Make sure that the shift lever is in P position.
(b) Lift up the vehicle.
(c) Turn the crankshaft pulley using hand tools to check if the crankshaft can rotate smoothly.
CAUTION:
Do not turn the power switch on (READY) while performing this inspection. Be sure to turn the power switch off before performing this inspection, to prevent the engine from starting.
NOTICE:
Engine compression causes resistance when turning the crankshaft pulley. Check if the crankshaft rotates smoothly (or if it is locked) by manually applying sufficient torque to turn the crankshaft pulley. The torque required to turn the crankshaft pulley should be the same as for a known good vehicle of the same type.
Result | Proceed to |
---|---|
The crankshaft rotates smoothly. | A |
The crankshaft does not rotate smoothly. | B |
(d) Lower the vehicle.
A | CHARGE HV BATTERY |
|
5. | CHECK CRANKSHAFT PULLEY REVOLUTION (N POSITION) |
(a) Lift up the vehicle.
(b) Move the shift lever to N.
(c) Turn the crankshaft pulley using hand tools to check if the crankshaft can rotate smoothly.
CAUTION:
Do not turn the power switch on (READY) while performing this inspection. Be sure to turn the power switch off before performing this inspection, to prevent the engine from starting.
NOTICE:
Engine compression causes resistance when turning the crankshaft pulley. Check if the crankshaft rotates smoothly (or if it is locked) by manually applying sufficient torque to turn the crankshaft pulley. The torque required to turn the crankshaft pulley should be the same as for a known good vehicle of the same type.
Result | Proceed to |
---|---|
The crankshaft does not rotate smoothly. | A |
The crankshaft rotates smoothly. | B |
(d) Move the shift lever to P.
(e) Lower the vehicle.
B | GO TO STEP 8 |
|
6. | REPAIR OR REPLACE ENGINE |
|
7. | CHECK ENGINE START |
(a) Turn the power switch on (READY).
(b) Check if the engine starts.
NOTICE:
Do not turn the power switch on (READY) repeatedly after duplicating the problem symptom indicated by DTC P300016 and clearing the DTCs. This may cause another problem to occur.
HINT:
Depressing the accelerator pedal with the shift lever in P will cause the engine to start.
Result | Proceed to |
---|---|
The engine does not start. | A |
The engine starts. | B |
(c) Turn the power switch off.
A | CHARGE HV BATTERY |
B | LEAVE VEHICLE WITH THE SHIFT LEVER IN P, AND CHARGE HV BATTERY BY IDLING UNTIL IDLING STOPS |
8. | REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY |
Click here
|
9. | CHECK ENGINE START |
(a) Turn the power switch on (READY).
(b) Check if the engine starts.
NOTICE:
Do not turn the power switch on (READY) repeatedly after duplicating the problem symptom indicated by DTC P300016 and clearing the DTCs. This may cause another problem to occur.
HINT:
Depressing the accelerator pedal with the shift lever in P will cause the engine to start.
Result | Proceed to |
---|---|
The engine does not start. | A |
The engine starts. | B |
(c) Turn the power switch off.
A | CHARGE HV BATTERY |
B | LEAVE VEHICLE WITH THE SHIFT LEVER IN P, AND CHARGE HV BATTERY BY IDLING UNTIL IDLING STOPS |