Last Modified: 11-20-2023 |
6.11:8.1.0 |
Doc ID: RM100000001EATP |
Model Year Start: 2019 |
Model: Camry HV |
Prod Date Range: [09/2018 -
] |
Title: A25A-FXS (ENGINE CONTROL): SFI SYSTEM: P062712; Fuel Pump "A" Control Circuit Short to Battery; 2019 - 2024 MY Camry HV [09/2018 - ] |
DTC
|
P062712
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Fuel Pump "A" Control Circuit Short to Battery
|
DESCRIPTION
The fuel pump control ECU performs PWM (Pulse Width Modulation) control to control the fuel pump (for low pressure side) speed steplessly over a wide range.
The fuel pump control ECU controls the speed of the fuel pump (for low pressure side) by switching the current of FPU, FPV and FPW based on operation signals output from the ECM.
DTC No.
|
Detection Item
|
DTC Detection Condition
|
Trouble Area
|
MIL
|
Memory
|
Note
|
P062712
|
Fuel Pump "A" Control Circuit Short to Battery
|
When the fuel pump control ECU operation duty ratio is 3 to 65%, the FPC terminal voltage is at a certain value or more for 3 seconds or more (1 trip detection logic).
|
-
Short in fuel pump control ECU circuit
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Fuel pump control ECU
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ECM
|
Comes on
|
DTC stored
|
-
SAE Code: P0629
-
DTC for Mexico Models: Applies
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Related Data List
DTC No.
|
Data List
|
P062712
|
Fuel Pump Control Duty Ratio
|
MONITOR DESCRIPTION
The ECM monitors the fuel pump control ECU operation signals.
When the output duty ratio of the operation signal from the ECM is 3 to 65% and the FPC terminal voltage is a certain value or more for 3 seconds or more, the ECM stores a DTC.
MONITOR STRATEGY
Related DTCs
|
P0629: Fuel pump control circuit range check (high voltage)
|
Required Sensors/Components (Main)
|
Fuel pump control ECU
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Required Sensors/Components (Related)
|
-
|
Frequency of Operation
|
Continuous
|
Duration
|
3 seconds
|
MIL Operation
|
Immediate
|
Sequence of Operation
|
None
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TYPICAL ENABLING CONDITIONS
Monitor runs whenever the following DTCs are not stored
|
None
|
All of the following conditions are met
|
-
|
Output duty cycle
|
3 to 65%
|
Auxiliary battery voltage
|
10.5 V or higher
|
Power switch
|
On (IG)
|
TYPICAL MALFUNCTION THRESHOLDS
Fuel pump control module terminal voltage level
|
High for 0.3 seconds or more
|
CONFIRMATION DRIVING PATTERN
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Connect the Techstream to the DLC3.
-
Turn the power switch on (IG).
-
Turn the Techstream on.
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Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
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Turn the power switch off and wait for at least 30 seconds.
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Turn the power switch on (IG).
-
Turn the Techstream on.
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Put the engine in Inspection Mode (Maintenance Mode).
Click here
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Start the engine and wait 10 seconds or more [A].
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Enter the following menus: Powertrain / Engine / Trouble Codes [B].
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Read the pending DTCs.
HINT:
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If a pending DTC is output, the system is malfunctioning.
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If a pending DTC is not output, perform the following procedure.
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Enter the following menus: Powertrain / Engine / Utility / All Readiness.
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Input the DTC: P062712.
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Check the DTC judgment result.
Techstream Display
|
Description
|
NORMAL
|
-
DTC judgment completed
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System normal
|
ABNORMAL
|
-
DTC judgment completed
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System abnormal
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INCOMPLETE
|
-
DTC judgment not completed
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Perform driving pattern after confirming DTC enabling conditions
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
-
Vehicle Control History may be stored in the hybrid vehicle control ECU assembly if the engine is malfunctioning. Certain vehicle condition information is recorded when Vehicle Control History is stored. Reading the vehicle conditions recorded in both the freeze frame data and Vehicle Control History can be useful for troubleshooting.
for NICKEL METAL HYDRIDE BATTERY:
Click here
for LITHIUM-ION BATTERY:
Click here
(Select Powertrain in Health Check and then check the time stamp data.)
Click here
-
If any "Engine Malfunction" Vehicle Control History item has been stored in the hybrid vehicle control ECU assembly, make sure to clear it. However, as all Vehicle Control History items are cleared simultaneously, if any Vehicle Control History items other than "Engine Malfunction" are stored, make sure to perform any troubleshooting for them before clearing Vehicle Control History.
for NICKEL METAL HYDRIDE BATTERY:
Click here
for LITHIUM-ION BATTERY:
Click here
HINT:
Read Freeze Frame Data using the Techstream. The ECM records vehicle and driving condition information as Freeze Frame Data the moment a DTC is stored. When troubleshooting, Freeze Frame Data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.
PROCEDURE
1.
|
INSPECT ECM (CHECK FOR SHORT)
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*a
|
Front view of wire harness connector
(to Fuel Pump Control ECU)
|
(a) Disconnect the fuel pump control ECU connector.
(b) Turn the power switch on (IG).
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection
|
Condition
|
Specified Condition
|
R18-2 (FPC) - Body ground
|
Power switch on (IG)
|
Below 1 V
|
NG
|
|
|
2.
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CHECK HARNESS AND CONNECTOR (FUEL PUMP CONTROL ECU - ECM)
|
(a) Disconnect the fuel pump control ECU connector.
(b) Disconnect the ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
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Condition
|
Specified Condition
|
R18-2 (FPC) or A22-6 (FPC) - Other terminals
|
Always
|
10 kΩ or higher
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
|