Toyota Venza: System Voltage (P0560)

Toyota Venza Service Manual / U660e Automatic Transmission / Transaxle / Automatic Transaxle System / System Voltage (P0560)

DESCRIPTION

The battery supplies electricity to the TCM even when the ignition switch is off. This power allows the TCM to store data such as DTC history and freeze frame data. If the battery voltage falls below a minimum level, these memories are cleared and the TCM determines that there is a malfunction in the power supply circuit. When the engine is next started, the TCM will illuminate the MIL and set the DTC.

DTC No.	DTC Detection Condition	Trouble Area
P0560	Open in TCM back-up power source circuit. DTC is detected for 3 sec. or more (1 trip detection logic).	Open in back-up power source circuit SFI system TCM

DTC No.

DTC Detection Condition

Trouble Area

P0560

Open in TCM back-up power source circuit.

DTC is detected for 3 sec. or more (1 trip detection logic).

Open in back-up power source circuit
SFI system
TCM

HINT:

If DTC P0560 is set, the TCM does not store other DTCs.

MONITOR STRATEGY

Related DTCs	P0560: TCM system voltage
Required Sensors/Components (Main)	TCM
Required Sensors/Components (Sub)	-
Frequency of Operation	Continuous
Duration	3 seconds
MIL Operation	Immediate (MIL illuminated after next engine start)
Sequence of Operation	None

TYPICAL ENABLING CONDITIONS

Monitor runs whenever following DTCs are not present:

None

TYPICAL MALFUNCTION THRESHOLDS

TCM power source	Less than 3.5 V
Stand-by RAM	Initialized

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

Perform the universal trip to clear permanent DTCs (See page ).

PROCEDURE

1.	CHECK DTC OUTPUT

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(d) Enter the following menus: Powertrain / Engine / DTC.

(e) Read the DTCs using the Techstream.

Display (DTC Output)	Proceed to
No DTC	A
P0560 is output (engine control system)	B

GO TO DTC P0560 (ENGINE CONTROL SYSTEM / SFI SYSTEM)

2.	INSPECT TCM (POWER SOURCE, GROUND)

(a) Disconnect the TCM connector.

(b) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection	Condition	Specified Condition
B40-1 (BATT) - B40-8 (E1)	Always	11 to 14 V

Standard Resistance:

Tester Connection	Condition	Specified Condition
B40-8 (E1) - Body ground	Always	Below 1 Ω

Text in Illustration

*1	Front view of wire harness connector (to TCM)

REPLACE TCM

REPAIR OR REPLACE HARNESS OR CONNECTOR (TCM - BATTERY, BODY GROUND)

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