Actron AutoTroubleShooter User Manual

1
Index
Safety Precautions .......................................... 2
Vehicle Service Information ............................ 4
Visual Inspection ............................................. 4
Electrical Specifications ............................... 35
Warranty ..................................................... 106
1. Multimeter Basic Functions
Functions and Display Definitions ............. 5
Setting the Range ..................................... 7
Battery and Fuse Replacement ................. 8
Measuring DC Voltage .............................. 9
Measuring AC Voltage .............................. 9
Measuring Resistance ..............................10
Measuring DC Current ..............................10
Testing for Continuity .............................. 11
Testing Diodes ........................................ 12
Measuring Engine RPM ........................... 12
Measuring Dwell ..................................... 13
2. Automotive Testing with the CP7677
General Testing ...................................... 14
-
Testing Fuses ...................................... 14
-
Testing Switches .................................. 14
-
Testing Solenoids and Relays ............. 15
Starting / Charging System Testing ....... 16
-
No Load Battery Test ........................... 16
-
Engine Off Battery Current Draw ......... 16
CP7677
AutoTroubleShooter
®
OPERATING
INSTRUCTIONS
- Cranking Voltage/Battery Load Test ... 17
-
Voltage Drops ...................................... 18
- Charging System Voltage Test ........... 19
Ignition System Testing .......................... 20
-
Ignition Coil Testing ............................. 20
-
Ignition System Wires .......................... 22
-
Hall Effect Sensors/Switches .............. 23
-
Magnetic Pick-Up Coils ....................... 24
-
Reluctance Sensors ............................ 24
-
Ignition Coil Switching Action .............. 25
Fuel System Testing ............................... 26
- Testing GM C-3 Mixture Control
Solenoid Dwell .................................... 26
- Measuring Fuel Injector Resistance ... 27
Testing Engine Sensors .......................... 28
-
Oxygen (O
2
) Type Sensors ................. 28
-
Temperature Type Sensors ................ 30
- Position Type Sensors –
Throttle and EGR Valve Position,
Vane Air Flow ...................................... 31
- Manifold Absolute Pressure (MAP) and
Barometric Pressure (BARO) Sensors 32
-
Mass Air Flow (MAF) Sensors ............ 33
Instrucciones en español .... 36
Instructions en français ....... 71
600
600
10A MAX
MAX 10sec
EACH 15min
FUSED
CAT III 600V
®

Actron AutoTroubleShooter Specifications

General

Brand	Actron
Model	AutoTroubleShooter
Category	Test Equipment
Language	English

Summary

Safety Guidelines

Explanation of Symbols

Multimeter Basic Functions

Functions and Display Definitions

Defines the multimeter's functions, buttons, and display indicators for operation.

Setting the Range

Explains how to select the appropriate measurement range for accurate readings.

Battery and Fuse Replacement

Provides instructions for replacing the device's battery and internal fuses.

Measurement Procedures

Covers measuring DC/AC voltage, resistance, and current.

Diagnostic Tests

Details continuity testing, diode testing, RPM, and Dwell measurement.

Automotive Testing with the CP7677

General Component Tests

Covers basic tests for fuses, switches, solenoids, and relays.

Starting and Charging System Tests

Details procedures for testing the vehicle's starting and charging systems.

Voltage Drops

Explains how to measure voltage drops to identify excessive resistance in circuits.

Charging System Voltage Test

Details how to test the vehicle's charging system output.

Ignition System Diagnostics

Covers testing of ignition coils, wires, and switching action.

Fuel System Diagnostics

Details tests for fuel mixture control solenoids and fuel injectors.

Hall Effect Sensors/Switches

Explains testing procedures for Hall Effect sensors and switches.

Magnetic Pick-Up Coils – Reluctance Sensors

Describes how to test reluctance sensors used in ignition systems.

Oxygen (O2) Type Sensors

Details testing procedures for Oxygen (O2) sensors.

Temperature Type Sensors

Explains how to test temperature sensors like coolant and air temp.

Position Type Sensors

Covers testing of sensors determining position, like throttle and vane air flow.

MAP and BARO Sensors

Details testing for Manifold Absolute Pressure and Barometric Pressure sensors.

MAF Sensors

Explains how to test Mass Air Flow sensors.

Electrical Specifications

Limited Warranty