Toyota Yaris: Charging System / Generator "A" Mechanical Performance Mechanical Failure (P065C07)
DESCRIPTION
The alternator performs self-diagnosis of its internal circuits to detect malfunctions (open or short circuits).
The ECM receives the result via LIN communication and stores a DTC.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Note |
| P065C07 | Generator "A" Mechanical Performance Mechanical Failure | All of the following conditions are met (1 trip detection logic): -
Engine running (except during engine cranking).
-
No malfunction in the LIN communication system.
-
Alternator speed is less than 560 rpm.
-
EXC circuit is ON.
| -
Fan and generator V belt
-
V-Ribbed belt tensioner assembly
-
Generator assembly wiring
-
Generator assembly
| Comes on | SAE Code: P065C |
WIRING DIAGRAM
Refer to the wiring diagram for the P062049.
Click here
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following procedure.
PROCEDURE
| 1. | CHECK FAN AND GENERATOR V BELT |
Click here
| NG |
| REPAIR OR REPLACE FAN & GENERATOR V BELT |
|
OK |
| |
| 2. | CHECK V-RIBBED BELT TENSIONER ASSEMBLY |
Click here
| NG |
| REPAIR OR REPLACE V-RIBBED BELT TENSIONER ASSEMBLY |
|
OK |
| |
| 3. | CHECK GENERATOR ASSEMBLY WIRING |
Click here
| NG |
| REPAIR OR REPLACE GENERATOR ASSEMBLY WIRING |
|
OK |
| |
| 4. | CHECK FOR ABNORMAL NOISE |
Click here
| NG |
| REPAIR OR REPLACE GENERATOR ASSEMBLY |
|
OK |
| |
| 5. | CHARGING CIRCUIT WITHOUT LOAD |
Click here
| NG |
| REPAIR OR REPLACE GENERATOR ASSEMBLY |
|
OK |
| |
| 6. | CHARGING CIRCUIT WITH LOAD |
Click here
| OK |
| CHECK FOR INTERMITTENT PROBLEMS |
| NG |
| REPAIR OR REPLACE GENERATOR ASSEMBLY |
DESCRIPTION The alternator performs self-diagnosis of its internal circuits to detect malfunctions (open or short circuits). The ECM receives the result via LIN communication and stores a DTC...
DESCRIPTION The auxiliary battery condition is calculated from the voltage when the engine is running (except when cranking) and then output to the ECM...
Other information:
The Dynamic Stability Control (DSC) automatically controls
braking and engine torque in conjunction with systems such as
ABS and TCS to help control side slip when driving on slippery
surfaces, or during sudden or evasive maneuvering, enhancing
vehicle safety...
DESCRIPTION Problem Symptom Suspected Area Trouble Area
Engine speed fluctuation due to abnormal combustion
Idle speed too low or high
Strong engine vibration due to above symptoms
Ignition malfunction
Deviation in air fuel ratio (Excessive or insufficient intake air volume or fuel supply)
Insufficient compression
Changes in load from another system
Ignition system
Spark plug
Ignition coil assembly
Fuel system
Direct fuel injector assembly
Port fuel injector assembly
Fuel pump assembly (for high pressure side)
Fuel pump (for low pressure side)
Fuel pump control circuit
Fuel line
Purge VSV system
Fuel quality (existence of foreign matter, degradation)
Intake and exhaust systems
Mass air flow meter sub-assembly
Intake system
(Air leaks or deposit accumulation)
Throttle body with motor assembly
Air fuel ratio sensor (sensor 1)
Air fuel ratio sensor (sensor 2)
Cam timing oil control solenoid assembly
Variable Valve Timing system (VVT system)
Other control systems
ECM
Wire harness or connector
Knock control sensor
Engine coolant temperature sensor
Engine
Water control valve
Engine assembly
Engine mount
High load from another system
Air conditioning system
Power steering system
Electrical load signal system
SYMPTOM AND CAUSE OF SYSTEM MALFUNCTION HINT: The following are descriptions of the characteristics of each system malfunction...
Categories
WARNING
Never allow a person to ride in the luggage compartment/trunk
Allowing a person to ride in the luggage compartment/trunk is
dangerous.
The person in the luggage compartment/trunk could be seriously injured or
killed during sudden braking or a collision.
Do not drive with the liftgate/trunk lid open
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