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2002 Subaru Impreza RS WIRING DIAGRAMS Fig. 8: Wiring Diagram (Impreza 2.5L & Outback Sport 2.5L – 1 Of 3)

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RETRIEVING CODES 1. Enter specific test mode by connecting or disconnecting read memory and/or test mode connectors as
shown in RELATIONSHIP BETWEEN MODES & CONNECTORS table. Connectors are located behind left side of dash. See Fig. 1 .
2. Observe either CHECK ENGINE or O2 sensor monitor light. Note trouble codes, if any. Long illumination periods of 1.2 seconds designate the tens digit in the numbered codes. Short illumination periods of .2 second designate the ones digit in the numbered codes.
3. Tens and one digits are separated by a .03-second interval of non illumination. Example: 3 long flashes (1.2 seconds each), followed by 5 short flashes (.02 second each) designate code 35. 4. Code is repeated after a break of 2 seconds, unless another code is present which will be displayed after the 2-second break. Once all codes have been displayed, sequence will repeat.

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Testing and Inspection Fuel Pump Circuit Schematic Sized for Print Refer to the schematic diagram and test the system with the diagnostic chart. FUEL PUMP CIRCUIT DIAGNOSTIC CHART Fuel Pump Circuit Diagnostic Chart CHECK FUEL PUMP OPERATION IN “D-CHECK” MODE 1. Connect “Test Mode” connector. [1] 2. Turn ignition “ON.” 3. Check fuel pump for proper operation. Fuel pump should cycle on and off. [1] Refer to “How To Display and Read Diagnostic Trouble Codes” in COMPUTERS AND CONTROL SYSTEMS.
CHECK FUEL PUMP RELAY

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Cam Sprocket REMOVAL NOTE: Perform the work with the engine installed to body when replacing a single part. 1) Remove the V-belts. 2) Remove the crank pulley. 3) Remove the timing belt cover. 4) Remove the timing belt. 5) Remove the actuator cover of the intake cam sprocket. 6) Fasten the cam sprocket and remove from the cam shaft using ST. ST 499207400 CAM SPROCKET WRENCH INSTALLATION 1) Fasten the cam sprocket and install to the cam shaft using ST. NOTE: Do not confuse the cam sprockets (LH) and (RH) during installation. ST 499207400 CAM SPROCKET WRENCH Tightening torque: Tighten to 30 N-m (3.1 kgf-m, 22.1 ft-lb) of torque, and then tighten further by 45° .

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Tests/Procedures: 1. Question the customer. Check if he/she started the car, cranked the heater fan on full and went back inside as the car warmed up on a sub-zero morning. Engine temperature rise did not occur at the rate the Powertrain Control Module (PCM)
expected. 2. Coolant concentrations of greater than 50/50 can cause this code. Potential Causes: Code — Owner-induced code. Weak Coolant Tech Tips: This code will set if the heater system is pulling too much heat from the engine as it is warming up. Engine temperature rise did not occur at the rate the PCM expected.