Toyota Yaris: Manual Transaxle System / Crankshaft Position Sensor "A" Signal Stuck in Range (P03352A,P033531)

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Drivetrain / Ea67f (manual Transmission / Transaxle) / Manual Transaxle System / Crankshaft Position Sensor "A" Signal Stuck in Range (P03352A,P033531)

DESCRIPTION

The crankshaft position sensor system consists of a crankshaft position sensor plate (crankshaft pulley) and Magneto Resistance Element (MRE) type sensor. The 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 NE signal to detect the crankshaft position and engine speed.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Memory

Note

P03352A

Crankshaft Position Sensor "A" Signal Stuck in Range

No crankshaft position sensor signal to ECM while cranking for 4.7 seconds (1 trip detection logic).

  • SFI system
  • ECM

Comes on

DTC stored

SAE Code:

P0335

P033531

Crankshaft Position Sensor "A" No Signal

3 seconds after the engine started, the engine stalls and the engine speed signal value decreases rapidly (1 trip detection logic).

  • SFI system
  • ECM

Comes on

DTC stored

SAE Code:

P0335

HINT:

When the engine is being stopped or started automatically by stop and start system control, the ECM does not monitor the crankshaft position sensor signal.

MONITOR DESCRIPTION

A DTC will be stored if any of the following occur:

  • The crankshaft position sensor signal (NE signal) is not received by the ECM when the engine is being cranked.
  • The engine stalls and the engine speed signal value decreases rapidly (under normal conditions the engine speed will decrease gradually).

WIRING DIAGRAM

Refer to SFI system DTC P033511.

Click here

CAUTION / NOTICE / HINT

HINT:

  • If no problem is found by this diagnostic troubleshooting procedure, check for problems by referring to the engine mechanical section.
  • Read freeze frame data using the GTS. 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.
  • After performing repair, clear the DTCs and perform the following procedure to check that DTCs are not output.
    1. Start the engine and wait for 3 seconds or more.
    2. Check for DTCs again.

      Click here

DATA LIST

HINT:

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.

(a) Connect the GTS to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the GTS on.

(d) Start the engine.

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

Powertrain > Engine > Data List

Tester Display

Engine Speed

Powertrain > Engine > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Engine Speed

Engine speed

Min.: 0 rpm

Max.: 16383 rpm

950 to 1050 rpm: Idling (shift state neutral, engine warmed up and A/C off)

When the crankshaft position sensor is malfunctioning, "Engine Speed" is approximately 0 rpm or varies greatly from the actual engine speed.

PROCEDURE

1.

CHECK DTC OUTPUT (SFI SYSTEM)

(a) Check for SFI system DTCs.

Click here

Powertrain > Engine > Trouble Codes

Result

Proceed to

DTCs are not output

A

DTCs are output

B

A

REPLACE ECM

B

GO TO SFI SYSTEM

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