Toyota Avalon (XX50): Knock Sensor 1 Bank 1 or Single Sensor Circuit Short to Battery or Open (P032515). Crankshaft Position Sensor "A" Circuit Short to Ground (P033511,P033515). Camshaft Position Sensor "A" Bank 1 or Sing

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Engine / A25a-fxs Engine Control / Sfi System / Knock Sensor 1 Bank 1 or Single Sensor Circuit Short to Battery or Open (P032515). Crankshaft Position Sensor "A" Circuit Short to Ground (P033511,P033515). Camshaft Position Sensor "A" Bank 1 or Sing

Knock Sensor 1 Bank 1 or Single Sensor Circuit Short to Battery or Open (P032515)

DESCRIPTION

Refer to DTC P032511.

Click here

HINT:

When DTC P032515 is stored, the ECM enters fail-safe mode. During fail-safe mode, the ignition timing is delayed to its maximum retardation. Fail-safe mode continues until the power switch is turned off.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory	Note
P032515	Knock Sensor 1 Bank 1 or Single Sensor Circuit Short to Battery or Open	The knock control sensor output voltage is higher than 4.5 V for 1 second or more (1 trip detection logic).	Open or short in knock control sensor circuit Knock control sensor ECM	Comes on	DTC stored	SAE Code: P0328

Reference: Inspection using an oscilloscope.

Click here

MONITOR DESCRIPTION

If the output voltage transmitted by the knock control sensor remains high for 1 second or more, the ECM interprets this as a malfunction in the sensor circuit, illuminates the MIL and stores this DTC.

MONITOR STRATEGY

Related DTCs	P0328: Knock control sensor range check (high voltage)
Required Sensors/Components (Main)	Knock control sensor
Required Sensors/Components (Related)	-
Frequency of Operation	Continuous
Duration	1 second
MIL Operation	Immediate
Sequence of Operation	None

TYPICAL ENABLING CONDITIONS

Monitor runs whenever the following DTCs are not stored	None
Both of the following conditions are met	-
Auxiliary battery voltage	10.5 V or higher
Time after engine start	5 seconds or more

TYPICAL MALFUNCTION THRESHOLDS

Knock control sensor voltage

Higher than 4.5 V

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
When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
Click here

Connect the Techstream to the DLC3.
Turn the power switch on (IG).
Turn the Techstream on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the power switch off and wait for at least 30 seconds.
Turn the power switch on (IG).
Turn the Techstream on.
Put the engine in Inspection Mode (Maintenance Mode).
Click here
Start the engine and wait 5 minutes [A].
Enter the following menus: Powertrain / Engine / Trouble Codes [B].
Read the pending DTCs.
HINT:
- If a pending DTC is output, the system is malfunctioning.
- If a pending DTC is not output, perform the following procedure.
Enter the following menus: Powertrain / Engine / Utility / All Readiness.
Input the DTC: P032515.

Check the DTC judgment result.

Techstream Display	Description
NORMAL	DTC judgment completed System normal
ABNORMAL	DTC judgment completed System abnormal
INCOMPLETE	DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions

HINT:

If the judgment result is NORMAL, the system is normal.
If the judgment result is ABNORMAL, the system is malfunctioning.
If the judgment result is INCOMPLETE, idle the engine for 5 minutes and check the DTC judgment result again.
[A] to [B]: Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
When clearing the permanent DTCs, do not disconnect the cable from the auxiliary battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.

WIRING DIAGRAM

Refer to DTC P032511.

Click here

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.
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.
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.	CHECK TERMINAL VOLTAGE (POWER SOURCE OF KNOCK CONTROL SENSOR)

*a	Front view of wire harness connector (to Knock Control Sensor)

(a) Disconnect the knock control sensor connector.

(b) Turn the power switch on (IG).

Standard Voltage:

Tester Connection	Condition	Specified Condition
U2-2 (KNK1) - U2-1 (EKNK)	Power switch on (IG)	4.5 to 5.5 V

GO TO STEP 3

2.	INSPECT KNOCK CONTROL SENSOR

(a) Inspect the knock control sensor.

Click here

HINT:

Perform "Inspection After Repair" after replacing the knock control sensor.

Click here

GO TO STEP 4

REPLACE KNOCK CONTROL SENSOR

3.	CHECK HARNESS AND CONNECTOR (KNOCK CONTROL SENSOR - ECM)

(a) Disconnect the knock control sensor connector.

(b) Disconnect the ECM connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
U2-2 (KNK1) - C55-111 (KNK1)	Always	Below 1 Ω
U2-1 (EKNK) - C55-112 (EKNK)	Always	Below 1 Ω
U2-2 (KNK1) - C55-111 (KNK1) - Other terminals	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

CLEAR DTC

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(d) Clear the DTCs.

Powertrain > Engine > Clear DTCs

(e) Turn the power switch off and wait for at least 30 seconds.

5.	CHECK WHETHER DTC OUTPUT RECURS (DTC P032515)

(a) Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.

(b) Enter the following menus: Powertrain / Engine / Trouble Codes.

Powertrain > Engine > Trouble Codes

Result	Proceed to
DTCs are not output	A
DTC P032515 is output	B

CHECK FOR INTERMITTENT PROBLEMS

REPLACE ECM

Crankshaft Position Sensor "A" Circuit Short to Ground (P033511,P033515)

DESCRIPTION

The crankshaft position sensor system consists of a No. 1 crankshaft position sensor plate and Magneto Resistance Element (MRE) type sensor. The No. 1 crankshaft position sensor plate has 34 teeth at 10° intervals (2 teeth are missing for detecting top dead center), and is installed on the crankshaft. The crankshaft position sensor generates 34 signals per crankshaft revolution. The ECM uses the crankshaft position sensor signal (NE signal) to detect the crankshaft position and engine speed.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory	Note
P033511	Crankshaft Position Sensor "A" Circuit Short to Ground	The crankshaft position sensor output voltage is less than 0.3 V for 4 seconds or more (1 trip detection logic).	Open or short in crankshaft position sensor circuit Crankshaft position sensor ECM	Comes on	DTC stored	SAE Code: P0337
P033515	Crankshaft Position Sensor "A" Circuit Short to Battery or Open	The crankshaft position sensor output voltage is higher than 4.7 V for 4 seconds or more (1 trip detection logic).	Open or short in crankshaft position sensor circuit Crankshaft position sensor ECM	Comes on	DTC stored	SAE Code: P0338

Reference: Inspection using an oscilloscope.
HINT:

The correct waveform is as shown.

ECM Terminal Name

Between NE+ and NE-

Tester Range

2 V/DIV., 20 ms./DIV.

Condition

Idling with warm engine

MONITOR DESCRIPTION

If the output voltage transmitted by the crankshaft position sensor remains low or high, the ECM interprets this as a malfunction in the sensor circuit, illuminates the MIL and stores a DTC.

MONITOR STRATEGY

Related DTCs	P0337: Crankshaft position sensor range check (Low voltage) P0338: Crankshaft position sensor range check (High voltage)
Required Sensors/Components (Main)	Crankshaft position sensor
Required Sensors/Components (Related)	Camshaft position sensor
Frequency of Operation	Continuous
Duration	4 seconds
MIL Operation	Immediate
Sequence of Operation	None

TYPICAL ENABLING CONDITIONS

Monitor runs whenever following DTCs are not present	None
Both of the following conditions are met	-
Auxiliary battery voltage	8 V or higher
Power switch	On (IG)

TYPICAL MALFUNCTION THRESHOLDS

P0337: Range Check (Low Voltage)

Crankshaft position sensor voltage

Less than 0.3 V

P0338: Range Check (High Voltage)

Crankshaft position sensor voltage

Higher than 4.7 V

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
When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
Click here

Connect the Techstream to the DLC3.
Turn the power switch on (IG).
Turn the Techstream on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the power switch off and wait for at least 30 seconds.
Turn the power switch on (IG) [A].
Turn the Techstream on.
Wait 5 seconds or more [B].
Enter the following menus: Powertrain / Engine / Trouble Codes [C].
Read the pending DTCs.
HINT:
- If a pending DTC is output, the system is malfunctioning.
- If a pending DTC is not output, perform the following procedure.
Enter the following menus: Powertrain / Engine / Utility / All Readiness.
Input the DTC: P033511 or P033515.

Check the DTC judgment result.

Techstream Display	Description
NORMAL	DTC judgment completed System normal
ABNORMAL	DTC judgment completed System abnormal
INCOMPLETE	DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions

HINT:

If the judgment result is NORMAL, the system is normal.
If the judgment result is ABNORMAL, the system has a malfunction.
[A] to [C]: Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
When clearing the permanent DTCs, do not disconnect the cable from the auxiliary battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.

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.
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.
Click here

HINT:

The engine speed can be checked by using the Techstream. To perform the check, follow the procedures below:
1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Turn the Techstream on.
4. Put the engine in Inspection Mode (Maintenance Mode).
  Click here
5. Start the engine.
6. Enter the following menus: Powertrain / Engine / Data List / Engine Speed.
- The engine speed may be indicated as zero despite the engine running normally. This is caused by a lack of NE signals from the crankshaft position sensor. Alternatively, the engine speed may be indicated as lower than the actual engine speed if the crankshaft position sensor output voltage is insufficient.
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.	READ VALUE USING TECHSTREAM (ENGINE SPEED)

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(d) Put the engine in Inspection Mode (Maintenance Mode).

Powertrain > Hybrid Control > Utility

Tester Display
Inspection Mode

(e) Start the engine.

(f) Enter the following menus: Powertrain / Engine / Data List / Engine Speed.

Powertrain > Engine > Data List

Tester Display
Engine Speed

(g) Read the values displayed on the Techstream while the engine is running.

Standard:

Correct values are displayed.

HINT:

To check the engine speed change, display the graph on the Techstream.
If the engine does not start, check the engine speed while cranking.
If the engine speed indicated on the Techstream remains at zero (0), there may be an open or short in the crankshaft position sensor circuit.

CHECK FOR INTERMITTENT PROBLEMS

2.	CHECK HARNESS AND CONNECTOR

*a	Front view of wire harness connector (to Crankshaft Position Sensor)

HINT:

Make sure that the connector is properly connected. If it is not, securely connect it and check for DTCs again.

(a) Disconnect the crankshaft position sensor connector.

(b) Turn the power switch on (IG).

Standard Voltage:

Tester Connection	Condition	Specified Condition
U3-3 (VCNE) - Body ground	Power switch on (IG)	4.5 to 5.5 V
U3-1 (NE+) - Body ground	Power switch on (IG)	3.0 to 5.0 V

(d) Turn the power switch off and wait for at least 30 seconds.

(e) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
U3-3 (VCNE) - U3-1 (NE+)	Power switch off	1.425 to 1.575 kΩ
U3-2 (NE-) - Body ground	Always	Below 1 Ω

REPLACE CRANKSHAFT POSITION SENSOR

3.	CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM)

(a) Disconnect the crankshaft position sensor connector.

(b) Disconnect the ECM connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
U3-3 (VCNE) - C55-116 (VCNE)	Always	Below 1 Ω
U3-2 (NE-) - C55-115 (NE-)	Always	Below 1 Ω
U3-1 (NE+) - C55-93 (NE+)	Always	Below 1 Ω
U3-3 (VCNE) or C55-116 (VCNE) - Body ground and other terminals	Always	10 kΩ or higher
U3-2 (NE-) or C55-115 (NE-) - Body ground and other terminals	Always	10 kΩ or higher
U3-1 (NE+) or C55-93 (NE+) - Body ground and other terminals	Always	10 kΩ or higher

REPLACE ECM

REPAIR OR REPLACE HARNESS OR CONNECTOR

Camshaft Position Sensor "A" Bank 1 or Single Sensor Circuit Short to Ground (P034011,P034015)

DESCRIPTION

The camshaft position sensor (for intake camshaft) (VV1 signal) consists of a magnet and MRE (Magneto Resistance Element).

The intake camshaft has a timing rotor for the camshaft position sensor. When the intake camshaft rotates, changes occur in the air gaps between the timing rotor and MRE, which affects the magnetic field. As a result, the resistance of the MRE material fluctuates. The camshaft position sensor converts the camshaft rotation data to pulse signals, uses the pulse signals. The ECM uses the pulse signals to determine the camshaft angle. Then the ECM uses this data to control fuel injection duration and injection timing.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory	Note
P034011	Camshaft Position Sensor "A" Bank 1 or Single Sensor Circuit Short to Ground	The camshaft position sensor (for intake camshaft) output voltage is less than 0.3 V for 4 seconds or more (1 trip detection logic).	Open or short in camshaft position sensor (for intake camshaft) circuit Camshaft position sensor (for intake camshaft) ECM	Comes on	DTC stored	SAE Code: P0342
P034015	Camshaft Position Sensor "A" Bank 1 or Single Sensor Circuit Short to Battery or Open	The camshaft position sensor (for intake camshaft) output voltage is higher than 4.7 V for 4 seconds or more (1 trip detection logic).	Open or short in camshaft position sensor (for intake camshaft) circuit Camshaft position sensor (for intake camshaft) ECM	Comes on	DTC stored	SAE Code: P0343

Reference: Inspection using an oscilloscope.

HINT:

The correct waveform is as shown.
VV1 stands for the camshaft position sensor signal (for intake camshaft), and EV1 stands for the camshaft position sensor signal (for exhaust camshaft).

ECM Terminal Name

CH1: Between VV1+ and VV1-

CH2: Between EV1+ and EV1-

Tester Range

5 V/DIV., 20 ms./DIV.

Condition

Idling with warm engine

MONITOR DESCRIPTION

If the output voltage transmitted by the camshaft position sensor (for intake camshaft) remains low or high, the ECM interprets this as a malfunction in the sensor circuit, illuminates the MIL and stores a DTC.

MONITOR STRATEGY

Related DTCs	P0342: Camshaft position sensor range check (low voltage) P0343: Camshaft position sensor range check (high voltage)
Required Sensors/Components (Main)	Camshaft position sensor (for intake camshaft)
Required Sensors/Components (Related)	Crankshaft position sensor
Frequency of Operation	Continuous
Duration	4 seconds
MIL Operation	Immediate
Sequence of Operation	None

TYPICAL ENABLING CONDITIONS

All of the following conditions are met	-
Power switch	On (IG)
Time after power switch off to on (IG)	2 seconds or more
Auxiliary battery voltage	8 V or higher
Camshaft position sensor pulse input fail (P0340)	Not detected

TYPICAL MALFUNCTION THRESHOLDS

P0342: Range Check (Low Voltage)

Camshaft position sensor voltage

Less than 0.3 V

P0343: Range Check (High Voltage)

Camshaft position sensor voltage

Higher than 4.7 V

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
When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
Click here

Connect the Techstream to the DLC3.
Turn the power switch on (IG).
Turn the Techstream on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the power switch off and wait for at least 30 seconds.
Turn the power switch on (IG) [A].
Turn the Techstream on.
Wait for 5 seconds or more [B].
Enter the following menus: Powertrain / Engine / Trouble Codes [C].
Read the pending DTCs.
HINT:
- If a pending DTC is output, the system is malfunctioning.
- If a pending DTC is not output, perform the following procedure.
Enter the following menus: Powertrain / Engine / Utility / All Readiness.
Input the DTC: P034011 or P034015.

Check the DTC judgment result.

Techstream Display	Description
NORMAL	DTC judgment completed System normal
ABNORMAL	DTC judgment completed System abnormal
INCOMPLETE	DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions

HINT:

If the judgment result is NORMAL, the system is normal.
If the judgment result is ABNORMAL, the system is malfunctioning.
[A] to [C]: Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
When clearing the permanent DTCs, do not disconnect the cable from the auxiliary battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.

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.
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.
Click here

HINT:

PROCEDURE

1.	CHECK HARNESS AND CONNECTOR

*a	Front view of wire harness connector (to Camshaft Position Sensor (for Intake Camshaft))

HINT:

Make sure that the connector is properly connected. If it is not, securely connect it and check for DTCs again.

(a) Disconnect the camshaft position sensor (for intake camshaft) connector.

(b) Turn the power switch on (IG).

Standard Voltage:

Tester Connection	Condition	Specified Condition
C12-3 (VC) - Body ground	Power switch on (IG)	4.5 to 5.5 V
C12-1 (VVI+) - Body ground	Power switch on (IG)	3.0 to 5.0 V

(d) Turn the power switch off and wait for at least 30 seconds.

(e) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
C12-3 (VC) - C12-1 (VVI+)	Power switch off	1.425 to 1.575 kΩ
C12-2 (VVI-) - Body ground	Always	Below 1 Ω

REPLACE CAMSHAFT POSITION SENSOR (FOR INTAKE CAMSHAFT)

2.	CHECK HARNESS AND CONNECTOR (CAMSHAFT POSITION SENSOR (FOR INTAKE CAMSHAFT) - ECM)

(a) Disconnect the camshaft position sensor (for intake camshaft) connector.

(b) Disconnect the ECM connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
C12-1 (VVI+) - C55-90 (VV1+)	Always	Below 1 Ω
C12-2 (VVI-) - C55-89 (VV1-)	Always	Below 1 Ω
C12-3 (VC) - C55-88 (VCV1)	Always	Below 1 Ω
C12-1 (VVI+) or C55-90 (VV1+) - Body ground and other terminals	Always	10 kΩ or higher
C12-2 (VVI-) or C55-89 (VV1-) - Body ground and other terminals	Always	10 kΩ or higher
C12-3 (VC) or C55-88 (VCV1) - Body ground and other terminals	Always	10 kΩ or higher

REPLACE ECM

REPAIR OR REPLACE HARNESS OR CONNECTOR

Evaporative Emission System Switching Valve Actuator Stuck On (P24507E,P24517F). Random/Multiple Cylinder Misfire Detected (P030000,P030027,P030085-P030400). Knock Sensor 1 Bank 1 or Single Sensor Cir

Camshaft Position Sensor "A" Bank 1 or Single Sensor No Signal (P034031). Camshaft Position Sensor "B" Bank 1 Circuit Short to Ground (P036511,P036515). Exhaust Gas Recirculation "A" Circuit Current B

See More:

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ECM Terminal Name	Between NE+ and NE-
Tester Range	2 V/DIV., 20 ms./DIV.
Condition	Idling with warm engine