DESCRIPTION
Before beginning it is important to have all available information on the system to be tested. Also, get a thorough understanding of system operation. Then you will be able to use the appropriate equipment and follow the correct test procedure.
NOTE:
Refer to GI-36, "How to Check Terminal" to probe or check terminal.
Testing for “opens” in the circuit
Before you begin to diagnose and test the system, you should rough sketch a schematic of the system. This will help you to logically walk through the diagnosis process. Drawing the sketch will also reinforce your working knowledge of the system.
Before you begin to diagnose and test the system, you should rough sketch a schematic of the system. This will help you to logically walk through the diagnosis process. Drawing the sketch will also reinforce your working knowledge of the system.
Continuity Check Method
The continuity check is used to find an open in the circuit. The digital multimeter (DMM) set on the resistance function will indicate an open circuit as over limit (no beep tone or no ohms symbol). Make sure to always start with the DMM at the highest resistance level.
To help in understanding the diagnosis of open circuits, please refer to the previous schematic.
Any circuit can be diagnosed using the approach in the previous example.
Voltage Check Method
To help in understanding the diagnosis of open circuits please refer to the previous schematic.
In any powered circuit, an open can be found by methodically checking the system for the presence of voltage.
This is done by switching the DMM to the voltage function.
voltage; open is further down the circuit than SW1.
no voltage; open is between fuse block and SW1 (point A).
voltage; open is further down the circuit than the relay.
no voltage; open is between SW1 and relay (point B).
voltage; open is further down the circuit than the solenoid.
no voltage; open is between relay and solenoid (point C).
Any powered circuit can be diagnosed using the approach in the previous example.
Testing for “shorts” in the circuit
To simplify the discussion of shorts in the system, please refer to the following schematic.
Resistance Check Method
continuity; short is between fuse terminal and SW1 (point A).
no continuity; short is further down the circuit than SW1.
Then, check for continuity.
continuity; short is between SW1 and the relay (point B).
no continuity; short is further down the circuit than the relay.
continuity; short is between relay and solenoid (point C).
no continuity; check solenoid, retrace steps.
Voltage Check Method
voltage; short is between fuse block and SW1 (point A).
no voltage; short is further down the circuit than SW1
voltage; short is between SW1 and the relay (point B).
no voltage; short is further down the circuit than the relay.
voltage; short is down the circuit of the relay or between the relay and the disconnected solenoid (point C).
no voltage; retrace steps and check power to fuse block.
Ground inspection
Even when the ground connection looks clean, there can be a thin film of rust on the surface.
Voltage drop tests
Measuring Voltage Drop — Accumulated Method
Note in the illustration that there is an excessive 4.1 volt drop between the battery and the bulb.
Measuring Voltage Drop — Step-by-Step
Control unit circuit test
System Description
When the switch is ON, the control unit lights up the lamp.
CASE 1
The voltage value is based on the body ground.
*: If high resistance exists in the switch side circuit (caused by a single strand), terminal 1 does not detect battery voltage. Control unit does not detect the switch is ON even if the switch does not turn ON. Therefore, the control unit does not supply power to light up the lamp.
CASE 2
The voltage value is based on the body ground.
*: If high resistance exists in the switch side circuit (caused by a single strand), terminal 2 does not detect approx. 0V. Control unit does not detect the switch is ON even if the switch does not turn ON. Therefore, the control unit does not control ground to light up the lamp.
Wheel sensor
Front wheel sensor
FRONT WHEEL SENSOR : Exploded View
Front wheel sensor
Front wheel sensor harness connector
Front
FRONT WHEEL SENSOR : Removal and Installation
CAUTION:
Be careful not to damage wheel sensor edge and sensor
rotor teeth.
When removing the front ...
Door handle
Front door handle
Front door handle : exploded view
Outside handle bracket
Rear gasket
Front gasket
Outside handle escutcheon
Outside handle
Door key cylinder rod
Inside handle assembly
Front door handle : removal and installation
- inside handle
REMOVAL
Remove fr ...
Regulatory Information
FCC Regulatory information
CAUTION: To maintain compliance with
FCC’s RF exposure guidelines, use only the
supplied antenna. Unauthorized antenna,
modification, or attachments could damage
the transmitter and may violate FCC regulations.
Operation is subject to the following two cond ...