Subaru Crosstrek Service Manual: Dtc p0122 throttle/pedal position sensor/switch "a" circuit low

Subaru Crosstrek Service Manual / Engine (diagnostics)(h4do) / Diagnostic procedure with diagnostic trouble code (dtc) / Dtc p0122 throttle/pedal position sensor/switch "a" circuit low

ENGINE (DIAGNOSTICS)(H4DO) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)

DTC P0122 THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT LOW

DTC detecting condition:

Immediately at fault recognition

Trouble symptom:

• Improper idling

• Engine stall

• Poor driving performance

CAUTION:

After servicing or replacing faulty parts, perform Clear Memory Mode Clear Memory Mode > OPERATION">, and Inspection Mode Inspection Mode > PROCEDURE">.

Wiring diagram:

Engine electrical system Engine Electrical System">

STEP	CHECK	YES	NO

1.CHECK HARNESS BETWEEN ECM AND ELECTRONIC THROTTLE CONTROL CONNECTOR.

1) Turn the ignition switch to OFF.

2) Disconnect the connector from ECM.

3) Disconnect the connectors from electronic throttle control.

4) Measure the resistance between ECM connector and chassis ground.

Connector & terminal

(B134) No. 19 — Chassis ground:

(B134) No. 18 — Chassis ground:

(B134) No. 18 — (B136) No. 4:

Is the resistance 1 M? or more?

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P0122 THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT LOW">Go to Step 2.

Repair the ground short circuit of harness between ECM connector and electronic throttle control connector.

2.CHECK SHORT CIRCUIT INSIDE THE ECM.

1) Connect the connector to ECM.

2) Measure the resistance between electronic throttle control connector and engine ground.

Connector & terminal

(E57) No. 6 — Engine ground:

Is the resistance 1 M? or more?

Replace the electronic throttle control. Throttle Body">

Repair the ground short circuit of harness between ECM connector and electronic throttle control connector. Replace the ECM if defective. Engine Control Module (ECM)">

1. OUTLINE OF DIAGNOSIS

Detect the open or short circuit of throttle position sensor 1.

Judge as NG if out of specification.

2. COMPONENT DESCRIPTION

(1)	Throttle position sensor 1 signal	(3)	Throttle position sensor	(4)	Engine control module (ECM)
(2)	Throttle position sensor 2 signal

3. EXECUTION CONDITION

Secondary Parameters	Execution condition
Battery voltage	≥ 6 V

4. GENERAL DRIVING CYCLE

Always perform the diagnosis continuously.

5. DIAGNOSTIC METHOD

If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.

Judgment Value

Malfunction Criteria	Threshold Value
Sensor 1 input voltage	≤ 0.267 V

Time Needed for Diagnosis: 24 ms

Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.

Dtc p0118 engine coolant temperature sensor 1 circuit high

ENGINE (DIAGNOSTICS)(H4DO) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC P0118 ENGINE COOLANT TEMPERATURE SENSOR 1 CIRCUIT HIGHDTC detecting condition:Immediately at fault recognitio ...

Dtc p0123 throttle/pedal position sensor/switch "a" circuit high

ENGINE (DIAGNOSTICS)(H4DO) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC P0123 THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT HIGHDTC detecting condition:Immediately at ...

Other materials:

Dtc b1835 short in curtain airbag lh squib circuit
AIRBAG SYSTEM (DIAGNOSTICS) > Diagnostic Chart with Trouble CodeDTC B1835 SHORT IN CURTAIN AIRBAG LH SQUIB CIRCUITDiagnosis start condition:Ignition voltage is 10 V to 16 V.DTC detecting condition:• Curtain airbag harness (LH) circuit is shorted.• Curtain airbag module (LH) is faulty. ...

Basic diagnostic procedure Procedure
TIRE PRESSURE MONITORING SYSTEM (DIAGNOSTICS) > Basic Diagnostic ProcedurePROCEDURECAUTION:Before removal or installation, be sure to remove any foreign matter (dust, moisture, oil, etc.) from the TPMS & keyless entry CM connector or TPMS CM connector.NOTE:To check harness for open or short c ...

Brake fluid level warning
This light illuminates when the brake fluid level has dropped to near the "MIN" level of the brake fluid reservoir with the ignition switch in the "ON" position and with the parking brake fully released. If the brake system warning light should illuminate while driving (with the parking bra ...