Subaru Legacy BN/BS (2015-2019) Service Manual: Dtc p1160 throttle return spring

Subaru Legacy BN/BS (2015-2019) Service Manual / Engine (diagnostics)(h4do) / Diagnostic procedure with diagnostic trouble code (dtc) / Dtc p1160 throttle return spring

NOTE:

For the diagnostic procedure, refer to DTC P2101. Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P2101 THROTTLE ACTUATOR "A" CONTROL MOTOR CIRCUIT RANGE/PERFORMANCE

1. OUTLINE OF DIAGNOSIS

Judge as NG when the valve is opened more than the default opening angle, but does not move to the close direction with the motor power stopped.

2. COMPONENT DESCRIPTION

(1)	Opener spring	(4)	Full closed stopper	(7)	DC motor
(2)	Return spring	(5)	Throttle valve	(8)	Main and sub throttle position sensor
(3)	Intermediate stopper	(6)	Gear

3. EXECUTION CONDITION

Secondary Parameters	Execution condition
Ignition switch	OFF
Battery voltage	≥ 6 V
Elapsed time after motor continuity OFF	= 1.6 s

4. GENERAL DRIVING CYCLE

• Ignition switch ON > OFF

• Ignition switch OFF > ON (Only after clearing memory)

5. DIAGNOSTIC METHOD

Judge as NG when the following conditions are established.

Judgment Value

Malfunction Criteria	Threshold Value
Change of the opening angle after the motor current is cut OFF	< 2 °

Time Needed for Diagnosis: Less than 1 second

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

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Other materials:

Installation
1. ENGINE SIDE1. Install a gasket to thermostat.NOTE:Use a new gasket.2. Install the thermostat and thermostat cover.Tightening torque:6.4 N·m (0.7 kgf-m, 4.7 ft-lb)(A)Thermostat cover(B)Gasket(C)Thermostat3. Connect the radiator outlet hose to thermostat cover.4. Install the front exhaust pi ...