Subaru Crosstrek Service Manual: Dtc p2746 intermediate shaft speed sensor "b" circuit range/performance

Subaru Crosstrek Service Manual / Continuously variable transmission (diagnostics) / Diagnostic procedure with diagnostic trouble code (dtc) / Dtc p2746 intermediate shaft speed sensor "b" circuit range/performance

CONTINUOUSLY VARIABLE TRANSMISSION (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)

DTC P2746 INTERMEDIATE SHAFT SPEED SENSOR "B" CIRCUIT RANGE/PERFORMANCE

DTC detecting condition:

Immediately at fault recognition

Trouble symptom:

• Standing start problems

• Shock occurs when engaging the lockup clutch.

• Shock occurs when selecting shift position.

STEP	CHECK	YES	NO

1.CHECK DTC.

Read the DTC using Subaru Select Monitor.

Besides DTC P2746, is DTC P2747 or P2751 displayed?

Perform the diagnosis according to DTCs other than P2746.

Perform the diagnosis according to DTC P2747. Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P2747 INTERMEDIATE SHAFT SPEED SENSOR "B" CIRCUIT NO SIGNAL">

1. OUTLINE OF DIAGNOSIS

Diagnosis 1

• Detect the malfunction of primary speed sensor signal characteristics.

• Judge as NG if the primary speed, compared with the speeds of other parts, is outside the possible range considering the hardware capabilities.

Diagnosis 2

• Detect the malfunction of primary speed sensor signal characteristics.

• Judge as NG if the primary speed exceeds the predetermined value.

2. EXECUTION CONDITION

Secondary Parameters	Execution condition
Diagnosis 1
12 V battery system voltage	≥ 9 V
Transmission range	Drive or Reverse
(Measured turbine shaft speed / Measured secondary pulley shaft speed)	≥ 0.4
	and
	≤ 2.55
Diagnosis 2
12 V battery system voltage	≥ 9 V
Transmission range	Drive or Reverse
(Measured turbine shaft speed / Measured secondary pulley shaft speed)	≥ 0.4
	and
	≤ 2.55

3. 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
Diagnosis 1
(Measured primary pulley shaft speed / Measured secondary pulley shaft speed)	< 0.36
	or
	> 2.80
Diagnosis 2
Measured primary pulley shaft speed	> 7140 rpm

Time Needed for Diagnosis: 5 seconds

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

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Dtc p2747 intermediate shaft speed sensor "b" circuit no signal

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Other materials:

Inspection
DIFFERENTIALS > Rear Differential (T-type)INSPECTIONWash all the disassembled parts clean, and examine them for wear, damage and other defects. Repair or replace the defective parts as necessary.1. Hypoid driven gear and drive pinion• If there is evidently an abnormal tooth contact, find ou ...

Installation
CONTINUOUSLY VARIABLE TRANSMISSION(TR580) > Drive Pinion Shaft AssemblyINSTALLATION1. Clean the mating surface of drive pinion retainer and converter case.2. Adjust the backlash and tooth contact between drive pinion shaft assembly and the front differential side gear. Drive Pinion Shaft Assembl ...

Adjustment
CONTINUOUSLY VARIABLE TRANSMISSION(TR580) > Inhibitor SwitchADJUSTMENT1. Shift the select lever to “N” range.2. Loosen the two bolts holding the inhibitor switch.3. Insert the ST vertically into the holes of the shifter arm and switch body.ST 499267300STOPPER PIN4. Tighten the two ...