Actron AutoTroubleShooter CP7677 - Manual

1
Index
Safety Precautions ......................................... 2
Vehicle Service Information ........................... 3
Visual Inspection ............................................ 3
Electrical Specifications ............................... 34
Warranty ..................................................... 104
1. Multimeter Basic Functions
Functions and Display Definitions ............ 4
Setting the Range ..................................... 6
Battery and Fuse Replacement ................ 7
Measuring DC Voltage .............................. 8
Measuring AC Voltage .............................. 8
Measuring Resistance .............................. 9
Measuring DC Current .............................. 9
Testing for Continuity .............................. 10
Testing Diodes ........................................ 11
Measuring Engine RPM .......................... 11
Measuring Dwell ..................................... 12
2. Automotive Testing with the CP7677
General Testing ...................................... 13
- Testing Fuses ...................................... 13
- Testing Switches ................................. 13
- Testing Solenoids and Relays ............ 14
Starting / Charging System Testing ....... 15
- No Load Battery Test .......................... 15
- Engine Off Battery Current Draw ........ 15
CP7677
Auto TroubleShooter ™
OPERATING
INSTRUCTIONS
- Cranking Voltage/Battery Load Test ... 16
- Voltage Drops ...................................... 17
- Charging System Voltage Test ........... 18
Ignition System Testing .......................... 19
- Ignition Coil Testing ............................. 19
- Ignition System Wires .......................... 21
- Hall Effect Sensors/Switches .............. 22
- Magnetic Pick-Up Coils ....................... 23
- Reluctance Sensors ............................ 23
- Ignition Coil Switching Action .............. 24
Fuel System Testing ............................... 25
- Testing GM C-3 Mixture Control
Solenoid Dwell .................................... 25
- Measuring Fuel Injector Resistance ... 26
Testing Engine Sensors .......................... 27
- Oxygen (O
2
) Type Sensors ................. 27
- Temperature Type Sensors ................ 29
- Position Type Sensors –
Throttle and EGR Valve Position,
Vane Air Flow ...................................... 30
- Manifold Absolute Pressure (MAP) and
Barometric Pressure (BARO) Sensors 31
- Mass Air Flow (MAF) Sensors ............ 32
Instrucciones en español .... 35
Instructions en français ....... 69