Nissan Altima HL32 Hybrid. Manual - part 691
P3000-603
HBC-513
< COMPONENT DIAGNOSIS >
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P3000-603
Description
INFOID:0000000004212118
The hybrid vehicle control ECU monitors its internal operation and detects malfunctions.
DTC Logic
INFOID:0000000004212119
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000004212120
1.
PRECONDITIONING
• Before inspecting the high-voltage system or disconnecting the low voltage connector of the inverter with
converter assembly, take safety precautions such as wearing insulated gloves and removing the service
plug grip to prevent electrical shocks. After removing the service plug grip, put it in your pocket to prevent
other technicians from accidentally reconnecting it while you are working on the high-voltage system.
• After disconnecting the service plug grip, wait for at least 10 minutes before touching any of the high-voltage
connectors or terminals.
• Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with
converter assembly.
>> GO TO 2.
2.
CHECK DTC OUTPUT (HYBRID SYSTEM)
1. Turn ignition switch ON.
2. Check DTC.
Is DTC detected?
YES
>> Go to Diagnosis Procedure relevant to output DTC.
NO
>> GO TO 3.
3.
REPLACE HYBRID VEHICLE CONTROL ECU
Replace the hybrid vehicle control ECU (See
HBC-644, "Removal and Installation"
).
>> GO TO 4.
4.
CLEAR DTC
1. Turn ignition switch ON.
2. Check DTC.
>> GO TO 5.
5.
RECONFIRM DTC OUTPUT (HYBRID SYSTEM)
1. Turn ignition switch ON.
2. Check DTC.
DTC No.
INF code
Trouble diagnosis name
DTC detecting condition
Possible cause
P3000
603
HV battery malfunction
A HV battery inverter cooling
system error signal is detected in
the hybrid vehicle control ECU.
• Hybrid vehicle control ECU
• HV battery assembly
Result: DTCs other than P3000-603 are output.
Result: DTC P0A09-591 is output.
Result: DTCs other than P3000-603 are output.