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Actron CP9025 Operation & User’s Manual

Actron CP9025 Manual Online:

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Actron CP9025 User Manual
Actron CP9025 User Guide
Actron CP9025 Online Manual

Text of Actron CP9025 User Guide:

  • Actron CP9025, 7 Using Codes Using Trouble Codes to Pinpoint Problems There are two types of codes • “Hard” codes - codes for problems which are present now. “Hard” problems make the “Check Engine” light come on and stay on. A trouble code is stored in computer memory. The light will stay on as long as the problem is present. • “Intermittent” codes - codes for problems which happened in the past, but are not happening now. When the problem first appears the “Check Engine” light will come on and a trouble code will be stored in computer memory. When the problem g

  • Actron CP9025, 20 TCCS-M (Toyota Computer Control System with Super Monitor Display option) 1) Complete Steps 1 Through 5 in Section 4, “Vehicle Preparation” 2) Turn ignition Key to ON Position but DO NOT START THE ENGINE 3) Have Pencil and Paper Ready 4) Press and Hold the “SELECT” and “INPUT M” Keys at the Same Time • Press both keys for a minimum of 3 seconds. • The letters “DIAG” will appear on the Super Monitor’s display. • Wait a few seconds, then proceed to next step. 5) Press and Hold the “SET” Key for at Least 3 Seconds 6) Read Troub

  • Actron CP9025, 17 TCCS-L (Toyota Computer Control System - Later version) 1) Complete ALL steps in Section 4, “Vehicle Preparation” 2) Access Computer Test Connector Rectangular type: • Open hinged cover on connector. • Some connectors use a special grease on the contacts to prevent corrosion. Do not wipe off! Circular type: • Remove the protective rubber cap from the connector. 3) Turn ignition Key to ON Position but DO NOT START THE ENGINE. 4) Install Code Scanning Tool Rectangular test connector: • Plug code scanner tool into connector. Note: Tool does not completely cover all contacts in 24 pin type connector. This is normal. • The tool only fits ONE WAY into the test conn

  • Actron CP9025, 70 NISSAN 1990 Stanza, 300ZX 1991 NX, Sentra, Stanza, 240SX, 300ZX 1992 Maxima w/VE30DE (DIS) engine, NX, Sentra, Stanza, 240SX, 300ZX Preliminary Checks Nissan service manuals list several checks which should be made before reading trouble codes. Problems in the areas listed below can cause the computer to set false or misleading codes. Ignoring these checks can make you miss the real cause of a code! This can lead to the unnecessary replace- ment of good parts. Service manual procedures for troubleshooting a code assume all prelim

  • Actron CP9025, 73 NISSAN switch, Electronic Fuel Injection (EFI) relay, Electronic Concentrated Control System (ECCS) relay, Main relay or faulty switch/relay wiring. or , Throttle Valve Idle switch - Out of adjustment or Bad Throttle Valve Idle switch or faulty switch wiring. 24 Idle switch - Bad or out of adjustment Idle switch, Ignition switch, Throttle Valve switch or faulty switch wiring. or , Transmission switch - Bad Neutral switch or faulty switch wiring. or , Neutral/Park switch - Bad Neutral/Park switch or faulty switch wiring. 25 Idle Speed Control - Bad Auxiliary Air Control (AAC) valve, Idle Speed Control

  • Actron CP9025, 54 NISSAN 1986 Stanza, 200SX Warning: Involves running engine. Observe all safety precautions (see page 2). Work in well ventilated area. 1) Using the Selector Tool or other means, verify that the Diagnosis Mode Selector is in the OFF position. 2) Turn the ignition switch ON, but do not start the engine. 3) Check to see that both the RED and GREEN LED’s turn ON and stay ON. • If they do, proceed to the next step. • If they do not, you have a problem with the battery supply circuit which feeds the computer (ECU), or the ECU itself may be defective. This failure must be repaired before proceeding. Refer to the ve

  • 8 • Inspect all vacuum hoses for: –Correct routing. Refer to vehicle service manual, or Vehicle Emission Control Information(VECI) decal located in the engine compartment. –Pinches and kinks. –Splits, cuts or breaks. • Inspect wiring for: –Contact with sharp edges. (This happens often.) –Contact with hot surfaces, such as exhaust manifolds. –Pinched

  • Actron CP9025, 6 running poorly, problems in the computer system MAY be the cause. See if any of the following symptoms apply to your vehicle. • Is the gas mileage significantly lower than it should be? • Is it hard to start cold?, hot?, always? • Has it recently failed an emissions test? • Does it falter or stumble when accelerated? • Does it lunge or surge while trying to maintain a steady speed? • Has it lost power? Always check the simple things first: • Is the air filter clean? A dirty air filter will degrade engine performance. • Are all vacuum hoses correctly installed and i

  • Actron CP9025, 42 HONDA 22 Variable Valve Timing Electronic Control (VTEC) Oil Pressure switch - Bad VTEC Oil Pressure switch, VTEC Spool Valve or faulty switch/valve wiring. 23 Knock sensor - Bad Knock sensor or faulty sensor wiring. 30 Automatic Transmission (A/T) “A” signal - Faulty signal wiring. or , A/T FI Signal A - Faulty signal wiring. 31 Automatic Transmission (A/T) “B” signal - Faulty signal wiring. or , A/T FI Signal B - Faulty signal wiring. 41 Oxygen (O 2 ) sensor heater - Bad Oxygen sensor or faulty sensor wiring. or , Linear Air/Fuel Ratio (LAF) sensor - Bad LAF sensor or faulty sensor wiring. 43 Fuel Supply system - Bad Oxygen (O 2 ) sensor or proble

  • 72 NISSAN Code Meanings 11 Crank (Crankshaft) Angle sensor - Bad or dirty Crank Angle sensor, Electronic Concentrated Control System (ECCS) relay, Main Relay, EFI Main Relay or Ignition switch. Faulty sensor, relay or switch wiring. Crank Angle sensor harness is near spark plug wires. or , Crank Angle switch - Bad or dirty Crank Angle switch or faulty switch wiring. 12 Mass Airflow sensor -

  • Actron CP9025, 41 HONDA 7 Throttle Angle (position) sensor - Bad Throttle Angle (position) sensor. Faulty Automatic Transmission (A/ T) control unit or sensor/ control unit wiring. or , Clutch Switch Signal Manual Transmission (M/ T) - Bad Clutch Switch Control unit or faulty control unit wiring. or , Automatic Transmission (A/T) Shift Position Signal - Faulty control unit or control unit wiring. 8 Top Dead Center (TDC) sensor - Bad TDC sensor or faulty sensor wiring. or , Pulse generator - Bad Pulse generator or faulty wiring. or , Ignition Output Signal - Bad Ignition coil or faulty ignition wiring. or , CYL sensor - Bad CYL sensor or faulty sensor wiring. or , TDC/Crank sensor - Bad TDC/Crank sens

  • Actron CP9025, 59 NISSAN A/C ORIGINAL PENCIL MARK ORIGINAL PENCIL MARK 12) Start the vehicle’s engine. 13) Observe the RED and GREEN LED’s. • On the 300ZX Turbo only, codes 14, and 31 should be displayed. • Note any codes other than 14, and 31. • On all other models code 31 should be displayed. • Note any codes other than 31. 14) (For 300ZX and 300ZX Turbo only. If Maxima, go to Step 16). Drive the vehicle at a speed of greater than 6 MPH. Warning: Get the help of another person for this step! 15) Ob

  • 9 C H Vehicle Preparation Important: Complete ALL steps in this section before proceeding to Section 5, “Reading Trouble Codes.” (Exception: Vehicles with Super Monitor Display – Do steps 1 through 6 only.) 1) Safety First! • Set the parking brake. • Put the shift lever in PARK or Neutral. • Block the drive wheels. • Make sure the ignition key is in the OFF po

  • Actron CP9025, 87 Vehicle Speed Sensor (VSS) Vehicle Speed Sensor. This sensor, mounted in the transmission, sends a frequency signal to the ECU. The frequency increases as the vehicle moves faster to give the ECU vehicle speed information. VSS See Vehicle Speed Sensor. VSV See Vacuum Switching Valve. VTEC See Variable Valve Timing Electronic Control. Wide Open Throttle (WOT) The vehicle operating condition brought about when the throttle is completely (or nearly so) open. The ECU typically delivers extra fuel to the engine at this time for acceleration purposes. The ECU uses the Throttle Position sensor, or a switch, to identify the WOT condition. WOT See Wide Open Throttle.

  • Actron CP9025, 79 Glossary AAC See Auxiliary Air Control valve. A/C Air Conditioning. A/C Amplifier The A/C Amplifier sends a signal to the ECU representing the temperature at the Evaporator outlet. The ECU then adjusts the engine cooling fan operation as necessary. A/C Switch Air Conditioning switch. Switch signals ECU when Air Conditioning is activated. The ECU will increase idle speed to prevent engine stalling whenever Air Conditioning is engaged. Actuator Devices which are powered by the ECU to control mechanical things. Actuator types include relays, solenoids and electric motors. Actuators allow the ECU to contr

  • Actron CP9025, 18 Example of code series 11, 13 and 23: ❊ PAUSE ❊ FLASH (pause) FLASH (2.5 second pause, then go to next code) ❊ PAUSE ❊❊❊ FLASH (pause) FLASH FLASH FLASH (2.5 second pause, then go to next code) ❊❊ PAUSE ❊❊❊ FLASH FLASH (pause) FLASH FLASH FLASH (4.5 second pause, then start all over again from the very beginning) Example of code 12 only: ❊ PAUSE ❊❊ FLASH (pause) FLASH FLASH (4.5 second pause, then start over again) After all trouble codes have been written down, finish testing as follows: O F F

  • Actron CP9025, 83 ESA See Electronic Spark Advance. EVAP See Evaporative Emission system. EVAP Vapor Canister (EVAP-VC) See Canister. Evaporative Emission System (EVAP) The EVAP system reduces the amount of fuel vapors entering the atmosphere. These vapors are stored in a charcoal canister. During warm engine cruise conditions the stored vapors are drawn into the engine and burned. EVAP-VC See Canister. Exhaust Gas Recirculation (EGR) The EGR system recirculates exhaust gases back into the intake manifold to reduce NO x emissions. Various types of systems are in u

  • Actron CP9025, 78 mass air flow sensors are used.) Then, the computer adjusts timing according to factory programmed instructions. The computer sends a timing signal to an ignition module which eventually creates the spark. A simpler version uses a conventional distributor with mechanical timing. Here, the computer controls a solenoid to change the vacuum advance timing by a fixed amount when desirable. Some vehicles have a “knock” sensor. The computer can “fine tune” the spark timing if this sensor signals an engine knock condit

  • Actron CP9025, 43 NISSAN Vehicle Preparation Complete ALL steps in this section before proceeding to Reading Trouble Codes, page 46 IMPORTANT: Reading trouble codes on Nissan vehicles requires access to the engine computer. Due to varying mounting locations and methods, some mechanical disassembly may be required! Refer to the Computer Location table in step 3 (see page 44). If you are unfamiliar or uncomfortable with the disassembly required, you may want to get help from another person before proceeding. 1) Safety First! • Set the parking brake. • Put the shift lever in PARK or Neutral. • Block the drive wheels. • Make sure all accessories are turned OFF. • Make sure the i

  • Actron CP9025, 11 Reading Codes Important: Complete ALL steps in Section 4, “Vehicle Preparation” before reading trouble codes. Toyota uses various computerized engine control systems. • Trouble codes are read by counting flashes on the “CHECK” engine light (or using the Super Monitor Display). • Use the chart below to find the code reading test procedure for your vehicle. * Vehicle must have Super Monitor Display Year Usage System Test Pg. 1983 Camry, Celica, Starlet EFI 12 1984 Camry, Celica, Starlet, Truck, Van EFI 12 1985 Camry, Van

  • Actron CP9025, 30 Reading Codes Important: Complete ALL steps in “Vehicle Preparation” before reading trouble codes. • Honda uses various computerized engine control systems. • Trouble codes are read by: – Observing LED’s (Light Emitting Diodes) built into the engine computer OR ... – Counting flashes on the “CHECK” engine light. • Use the chart below to find the code reading test procedure for your vehicle. Remember: Vehicles using the instrument panel (“CHECK” engine) lamp for reading trouble codes do NOT require engine computer access. Year Usage System Test Pg. 1985 Accord SEi, Civic CRX Si 4 LED 32 1986 Accord LXi, Prelude (all) 1 LED 34 Civic CRX Si, Ci

  • Actron CP9025, 33 HONDA O F F O N • Trouble codes from zero (no LED’s lit) through 15 (all LED’s lit) are used. • When more than one code is stored: –Each trouble code is presented once. –There is a 2 second pause between codes. 5) Write down all displayed Trouble Codes. 6) To view codes a second time, turn the ignition key OFF and then back to the ON position. 7) This completes trouble code retrieval on these vehicles. Turn the ignition key OFF. (The engine computer is back to normal operation.) What to do with the Trouble Codes Look up t

  • Actron CP9025, 21 TEST RESULTS COMMENTS No indication on Super Monitor Display You have a problem with the Super Monitor Display which needs repair before reading codes. Refer to vehicle service manual. E/G OK or ENG-OK Computer does NOT find a problem. If drive symptom persists, be sure to perform a thorough underhood inspection first. (Refer to page 7.) Then refer to vehicle service manual for troubleshooting suggestions. Any code(s) Computer found problems in vehicle. Refer to “Toyota Code Meanings.”, page 22. What to do with the Trouble Codes Look up the code definitions listed in Section 6, “Toyota Code Meanings.” At this point you can e

  • 84 Idle Speed Con- trol (ISC) Maintains proper idle speed when engine loading changes. Idle Switch Signals the ECU when the throttle is in the closed (idle) position. Idle-Up Solenoid The Idle-Up solenoid assists the AAC or FICD when the engine is under heavy load. It controls idle speed by adjusting throttle bypass air. Ignition Coil A transformer designed to boost

  • Actron CP9025, 45 NISSAN 4) Access the Computer for Testing • Trouble codes are “read” by observing the flash patterns of 1 or 2 LED’s (Light Emitting Diodes) mounted inside the computer. These LED’s can be seen through a “sight window” - an opening in the top or side of the computer housing. • Also mounted in the computer is the test switch or potentiometer which must be operated to start the code reading process. • Remove any vehicle parts such as kick panels or other plastic pieces which would restrict access to the LED si

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