Actron cp7676 User Manual

Instrucciones en español,
páginas 37-72
1
CP7676
Digital Multimeter
OPERATING
INSTRUCTIONS
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 Mixture Control Solenoid
on Feedback Carburetor ......................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 ............. 34
Index
Safety Precautions ............................. 2
Vehicle Service Information ............... 3
Visual Inspection ................................ 3
Electrical Specifications ................... 35
Warranty ........................................... 72
1. Multimeter Basic Functions
Functions and Display Definitions ............ 4
Setting the Range ..................................... 6
Battery Replacement ................................ 7
Measuring AC Voltage .............................. 7
Measuring DC Voltage .............................. 8
Measuring Resistance .............................. 8
Testing for Continuity ................................ 9
Testing Diodes .......................................... 9
Measuring Engine RPM (TACH) ............ 10
Measuring Dwell ...................................... 11
2. Automotive Testing with the CP7676
General Testing ....................................... 13
- Testing Fuses ....................................... 13
- Testing Switches .................................. 13
- Testing Solenoids and Relays ............. 14
Starting / Charging System Testing ............ 15
- No Load Battery Test ........................... 15
- Cranking Voltage/Battery Load Test .... 16
- Voltage Drops ....................................... 17
- Charging System Voltage Test ............ 18
OFF
8
CYL
4
CYL
5
CYL
6
CYL
2
K
2
0
0
2
0
0
7
5
0
2
0
2
2
0
M
2
M
2
0
0
K
2
0
K
D
C
V
A
C
V
OHMS
®
C
P7676
RPM
X10
7
5
0
V
A
C
2
0
0
V
D
C
COM
V
4
CYL
5
CYL
DWELL
6
CYL
8
CYL

Actron cp7676 Specifications

General

Brand	Actron
Model	cp7676
Category	Multimeter
Language	English

Summary

Safety Guidelines

Airbag Safety Precautions

Specific warnings regarding airbag systems and potential hazards.

Multimeter Basic Functions

Multimeter Overview and Components

Identifies key parts of the multimeter and their functions.

Functions and Display Definitions

Explains the various functions and what the display indicates.

Setting the Range

Guides on understanding and selecting appropriate measurement ranges.

Battery Replacement

Procedure for replacing the multimeter's 9V battery.

Measuring AC Voltage

Instructions for measuring AC voltages using the multimeter.

Measuring DC Voltage

Instructions for measuring DC voltages using the multimeter.

Measuring Resistance

Instructions for measuring electrical resistance with the multimeter.

Testing for Continuity

Procedure for checking circuit continuity.

Testing Diodes

How to test diodes using the multimeter's diode check function.

Measuring Engine RPM (TACH)

Steps to measure engine speed using the RPM X 10 function.

Measuring Dwell

Procedure for measuring dwell angle in ignition systems.

Automotive Testing

General Testing

General use of the multimeter for testing fuses, switches, solenoids, relays.

Testing Fuses

How to test automotive fuses for continuity.

Testing Switches

Procedure to check if automotive switches operate correctly.

Testing Solenoids and Relays

Testing the coil resistance of solenoids and relays.

Starting/Charging System Testing

General introduction to testing starting and charging systems.

No Load Battery Test

Procedure to test battery charge state before other tests.

Cranking Voltage - Battery Load Test

Measures battery voltage under engine cranking conditions.

Voltage Drops

Measures voltage loss across components in the starter system.

Charging System Voltage Test

Checks the alternator output and system voltage.

Ignition System Testing

Overview of testing ignition system components.

Ignition Coil Testing

Measures primary and secondary resistance of ignition coils.

Ignition System Wires

Tests resistance of spark plug and coil wires.

Hall Effect Sensors/Switches

Checks the operation of Hall Effect sensors.

Magnetic Pick-Up Coils – Reluctance Sensors

Tests reluctance sensors for open or shorted coils.

Ignition Coil Switching Action

Checks if the primary ignition coil is being switched ON/OFF.

Fuel System Testing

Overview of fuel system testing with the multimeter.

Testing GM C-3 Mixture Control Solenoid Dwell

Tests the dwell of the mixture control solenoid.

Measuring Fuel Injector Resistance

Measures the resistance of fuel injector coils.

Testing Engine Sensors

Introduction to testing various engine sensors.

Oxygen (O₂) Type Sensors

How to test Oxygen (O2) sensors.

Temperature Type Sensors

Tests thermistors or resistors that change resistance with temperature.

Position Type Sensors

Tests potentiometers or variable resistors like TPS, EGR, VAF.

Manifold Absolute Pressure (MAP) and Barometric Pressure (BARO) Sensors

Tests MAP and BARO sensors for voltage or frequency output.

Mass Air Flow (MAF) Sensors

Tests MAF sensors for DC voltage or low frequency output.

Electrical Specifications

Lists the DC Volts, AC Volts, Resistance, Dwell, and RPM ranges.

Warranty Information

Full One (1) Year Warranty

Details the limited one-year warranty terms and conditions.