Description
This data explains "Removal, Disassembly, Installation, Inspection and Adjustment" and "Trouble Diagnoses".
Relation Between Graphics and Descriptions
The following sample explains the relationship between the part description in an graphic, the part name in the text and the service procedures.
Scheme 2
Scheme 3
- THE LARGE GRAPHICS are exploded views (see the following) and contain tightening torques, lubrication points, section number of the PARTS CATALOG (e.g. SEC. 440) and other information necessary to perform repairs. The graphics should be used in reference to service matters only. When ordering parts, refer to the appropriate PARTS CATALOG. Components shown in an graphic may be identified by a circled number. When this style of graphic is used, the text description of the components will follow the graphic. Refer to «SYMBOLS»(ref-368843-S11359634052010081300000) for additional symbol definitions.
Scheme 4
Note. Trouble diagnoses indicate work procedures required to diagnose problems effectively. Observe the following instructions before diagnosing.
- Before performing trouble diagnoses, read the "Work Flow".
- After repairs, re-check that the problem has been completely eliminated.
- Refer to Component Parts and Harness Connector Location for the Systems described for identification/location of components and harness connectors.
- When checking circuit continuity, ignition switch should be OFF.
- Refer to the Circuit Diagram for quick pinpoint check. If you need to check circuit continuity between harness connectors in more detail, such as when a sub-harness is used, refer to «SYSTEM WIRING DIAGRAMS»(ref-370423) (FX35) and «SYSTEM WIRING DIAGRAMS»(ref-370424) (FX50) .
- Before checking voltage at connectors, check battery voltage.
- After accomplishing the Diagnosis Procedures and Electrical Components Inspection, make sure that all harness connectors are reconnected as they were.
Scheme 5
- Test group number and test group title Test group number and test group title are shown in the upper portion of each test group.
- Work and diagnosis procedure Start to diagnose a problem using procedures indicated in enclosed test groups.
- Questions and results Questions and required results are indicated in test group.
- Action Next action for each test group is indicated based on result of each question.
Scheme 6
Scheme 7
| Number | Item | Description |
|---|---|---|
| 1 | Power supply | This means the power supply of fusible link or fuse. |
| 2 | Fusible link | "X" means the fusible link. |
| 3 | Number of fusible link/fuse | This means the number of fusible link or fuse location. |
| 4 | Fuse | "/" means the fuse. |
| 5 | Current rating of fusible link/fuse | This means the current rating of the fusible link or fuse. |
| 6 | Optional splice | The open circle shows that the splice is optional depending on vehicle application. |
| 7 | Connector number | The letter shows which harness the connector is located in. Example "M": main harness. For detail and to locate the connector, refer to " HOW TO READ HARNESS LAYOUT ", " MAIN HARNESS ". |
| 8 | Splice | The shaded circle "•" means the splice. |
| 9 | Page crossing | This circuit continues to an adjacent illustration. |
| 10 | Option abbreviation | This means the vehicle specifications which layouts the circuit between "o". |
| 11 | Relay | This shows an internal representation of the relay. |
| 12 | Option description | This shows a description of the option abbreviation used on the illustration. |
| 13 | Switch | This shows that continuity exists between terminals 1 and 2 when the switch is in the A position. Continuity exists between terminals 1 and 3 when the switch is in the B position. |
| 14 | Circuit (Wiring) | This means the wiring. |
| 15 | System branch | This shows that the circuit is branched to other systems. |
| 16 | Shielded line | The line enclosed by broken line circle shows shield wire. |
| 17 | Component name | This shows the name of a component. |
| 18 | Ground (GND) | This shows the ground connection. |
| 19 | Connector | This means the connector information. This unit-side is described by the connector symbols. |
| 20 | Connectors | This means that a transmission line bypasses two connectors or more. |
| 21 | Wire color | This shows a code for the color of the wire. |
| B = Black W = White R = Red G = Green L = Blue Y = Yellow LG = Light Green BR = Brown OR or O = Orange P = Pink PU or V (Violet) = Purple GY or GR = Gray SB = Sky Blue CH = Dark Brown DG = Dark Green | ||
| When the wire color is striped, the base color is given first, followed by the stripe color as shown below: Example: L/W = Blue with White Stripe | ||
| 22 | Terminal number | This means the terminal number of a connector. |
ITEM DESCRIPTION
Abbreviation List
The following ABBREVIATIONS are used
| ABBREVIATION | DESCRIPTION |
|---|---|
| A/C | Air Conditioner |
| A/T | Automatic Transaxle/Transmission |
| ATF | Automatic Transmission Fluid |
| D1 | Drive range 1st gear |
| D2 | Drive range 2nd gear |
| D3 | Drive range 3rd gear |
| D4 | Drive range 4th gear |
| FR, RR | Front, Rear |
| LH, RH | Left-Hand, Right-Hand |
| M/T | Manual Transaxle/Transmission |
| OD | Overdrive |
| P/S | Power Steering |
| SAE | Society of Automotive Engineers, Inc. |
| SDS | Service Data and Specifications |
| SST | Special Service Tools |
| 2WD | 2-Wheel Drive |
| 2 2 | 2nd range 2nd gear |
| 2 1 | 2nd range 1st gear |
| 1 2 | 1st range 2nd gear |
| 1 1 | 1st range 1st gear |
ABBREVIATION LIST
Observe the following precautions to ensure safe and proper servicing. These precautions are not described.
OPERATION PROCEDURE
- Connect both battery cables. NOTE: Supply power using jumper cables if battery is discharged.
- Turn the push-button ignition switch to ACC position. (At this time, the steering lock will be released.)
- Disconnect both battery cables. The steering lock will remain released with both battery cables disconnected and the steering wheel can be turned.
- Perform the necessary repair operation.
- When the repair work is completed, re-connect both battery cables. With the brake pedal released, turn the push-button ignition switch from ACC position to ON position, then to LOCK position. (The steering wheel will lock when the push-button ignition switch is turned to LOCK position.)
- Perform self-diagnosis check of all control units using CONSULT-III.
Sometimes the symptom is not present when the vehicle is brought in for service. If possible, re-create the conditions present at the time of the incident. Doing so may help avoid a No Trouble Found Diagnosis. The following data illustrates ways to simulate the conditions/environment under which the owner experiences an electrical incident.
The data is broken into the six following topics
- Vehicle vibration
- Heat sensitive
- Freezing
- Water intrusion
- Electrical load
- Cold or hot start up
Get a thorough description of the incident from the customer. It is important for simulating the conditions of the problem.
- In general, testing electrical circuits is an easy task if it is approached in a logical and organized method. 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.
- You may have to simulate vehicle vibrations while testing electrical components. Gently shake the wiring harness or electrical component to do this.
| OPEN | A circuit is open when there is no continuity through a section of the circuit. | |
|---|---|---|
| SHORT | There are two types of shorts. | |
| SHORT CIRCUIT | When a circuit contacts another circuit and causes the normal resistance to change. | |
| SHORT TO GROUND | When a circuit contacts a ground source and grounds the circuit. | |
DESCRIPTION TABLE
Note. Refer to HOW TO CHECK TERMINAL to probe or check terminal.
System Description
- When the switch is ON, the control unit lights up the lamp.
CASE 1
Scheme 8
| Terminal No. | Description | Condition | Value (Approx.) | In case of high resistance such as single strand (V) (1) | ||
|---|---|---|---|---|---|---|
| + | Signal name | Input/Output | ||||
| 1 | Body ground | Switch | Input | Switch ON | Battery voltage | Lower than battery voltage Approx. 8 (Example) |
| Switch OFF | 0 V | Approx. 0 | ||||
| 2 | Body ground | Lamp | Output | Switch ON | Battery voltage | Approx. 0 (Inoperative lamp) |
| Switch OFF | 0 V | Approx. 0 | ||||
| The voltage value is based on the body ground. (1) 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. | ||||||
| (1) | 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. |
INPUT-OUTPUT VOLTAGE TABLE
CASE 2
Scheme 9
| Terminal No. | Description | Condition | Value (Approx.) | In case of high resistance such as single strand (V) (1) | ||
|---|---|---|---|---|---|---|
| + | Signal name | Input/Output | ||||
| 1 | Body ground | Lamp | Output | Switch ON | 0 V | Battery voltage (Inoperative lamp) |
| Switch OFF | Battery voltage | Battery voltage | ||||
| 2 | Body ground | Switch | Input | Switch ON | 0 V | Higher than 0 Approx. 4 (Example) |
| Switch OFF | 5 V | Approx. 5 | ||||
| The voltage value is based on the body ground. (1) If high resistance exists in the switch side circuit (caused by a single strand), terminal 2 does not detect approx. 0 V. 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. | ||||||
| (1) | If high resistance exists in the switch side circuit (caused by a single strand), terminal 2 does not detect approx. 0 V. 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. |
INPUT-OUTPUT VOLTAGE TABLE
Scheme 10
- When CONSULT-III/GST is connected with a data link connector (A) equipped on the vehicle side, it will communicate with the control unit equipped in the vehicle and then enable various kinds of diagnostic tests.
- Refer to " CONSULT-III Software Operation Manual " for more information.
