Subaru Crosstrek Service Manual: Diagnostics with phenomenon Inspection
CONTINUOUSLY VARIABLE TRANSMISSION(TR580) > Diagnostics with Phenomenon
INSPECTION
Symptoms | Faulty parts |
Stall speed is low after warming-up, with select lever in “D” or “R” range. | Engine control system |
Vehicle does not move despite engine speed rising up, with select lever in “D” or “R” range. |
• Engine control system
• Select cable
• CVTF
• Secondary pressure circuit
• Pulley, gear and variator chain
• Forward/reverse changeover section
• TCM
• Control valve body
• Inhibitor switch
Vehicle does not move by engine stall, with select lever in “D” or “R” range.
• Parking mechanism
• Select cable
• Bearing
• Forward/reverse changeover section
Excessive shock occurs at starting, with select lever in “D” or “R” range.
• Secondary pressure circuit
• Pulley, gear and variator chain
Acceleration speed from standstill is insufficient, with select lever in “D” or “R” range.
• Control valve body
• Forward/reverse changeover section
Engine speed suddenly rises up during driving, with select lever in “D” or “R” range.
• Control valve body
• Secondary pressure circuit
• Primary pressure circuit
Vibration occurs during driving, with select lever in “D” or “R” range.
• Secondary pressure circuit
• Primary pressure circuit
• Forward/reverse changeover section
• Pulley and variator chain
• Torque converter assembly
• Hydraulic pressure circuit to torque converter
• Control valve body
Sudden braking occurs during driving, with select lever in “D” or “R” range.
• Secondary pressure circuit
• Primary pressure circuit
• Control valve body
During deceleration, lockup clutch does not disengage until just before halting, with select lever in “D” or “R” range.
• Control valve body
• Torque converter assembly
Engine stalls with vehicle at a standstill, with select lever in “D” or “R” range.
• Engine control system
• Control valve body
Excessive lockup shock occurs during driving, with select lever in “D” range.
Control valve body
Slipping occurs at lockup, or lockup does not occur during driving, with select lever in “D” range.
• Control valve body
• Lockup hydraulic line
• Torque converter assembly
Excessive shift shock occurs when shifting the select lever from “N” range to “D” range, or from “N” range to “R” range.
• Inhibitor switch
• Control valve body
• Forward/reverse changeover section
Vehicle does not keep at standstill with select lever in “P” range, or parking cannot be released when shifting from “P” range to another range.
• Select cable
• Parking mechanism
Select lever does not shift smoothly.
• Select cable
• Inhibitor switch
• Detent spring
• Manual plate
Installation
CONTINUOUSLY VARIABLE TRANSMISSION(TR580) > Variator ChainINSTALLATIONFor installation of variator chain, refer to “Primary Pulley and Secondary Pulley”. Primary Pulley and Secondary P ...
Road test Inspection
CONTINUOUSLY VARIABLE TRANSMISSION(TR580) > Road TestINSPECTION1. GENERAL PRECAUTIONRoad tests should be conducted to properly diagnose the condition of CVT.CAUTION:Always observe the local traffic ...
Other materials:
Dtc u0140 lost communication with body control module
AUTO HEADLIGHT BEAM LEVELER SYSTEM (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC U0140 LOST COMMUNICATION WITH BODY CONTROL MODULEDetected when CAN data (headlights ON signal) is not received from the body integrated unit.NOTE:Perform the diagnosis for LAN system. Ba ...
Installation
CONTINUOUSLY VARIABLE TRANSMISSION(TR580) > Automatic Transmission AssemblyINSTALLATION1. Attach the ST to converter case.ST 498277200STOPPER SET2. When completely overhauling the transmission, refill CVTF through the transmission right side plug. Preparation for Overhaul">3. Replace ...
Removal
COOLING(H4DO) > RadiatorREMOVALCAUTION:The radiator is pressurized when the engine and radiator are hot. Wait until engine and radiator cool down before working on the radiator.1. Disconnect the ground cable from battery. NOTE">2. Remove the V-belt covers.3. Remove the grille bracket.NOT ...