Description
This Service Information explains "Removal, Disassembly, Installation, Inspection and Adjustment" and "Trouble Diagnoses".
Relation between Illustrations and Descriptions
The following sample explains the relationship between the part description in an illustration, the part name in the text and the service procedures
Scheme 1
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" in each section.
- After repairs, re-check that the problem has been completely eliminated.
- Refer to Component Parts and Harness Connector Location for the Systems described in each section 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 Wiring Diagram in each individual section and Harness Layout in «POWER SUPPLY, GROUND & CIRCUIT ELEMENTS - POWER SUPPLY & GROUND CIRCUIT - FX35 & FX50»(ref-523990) for identification of harness connectors.
- Before checking voltage at connectors, check battery voltage.
- After accomplishing the Diagnosis Procedures and Electrical Components Inspection, check that all harness connectors are reconnected as they were.
Scheme 2
- 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 3
Scheme 4
Abbreviation List
The following ABBREVIATIONS are used
| ABBREVIATION | DESCRIPTION |
|---|---|
| A/C | Air conditioner |
| A/C | Air conditioning |
| A/F sensor | Air fuel ratio sensor |
| A/T | Automatic transaxle/transmission |
| ABS | Anti-lock braking system |
| ACCS | Advance climate control system |
| ACL | Air cleaner |
| AP | Accelerator pedal |
| APP | Accelerator pedal position |
| ATF | Automatic transmission fluid |
| AV | Audio visual |
| AWD | All wheel drive |
ABBREVIATION DESCRIPTION LIST (A)
| ABBREVIATION | DESCRIPTION |
|---|---|
| BARO | Barometric pressure |
| BCM | Body control module |
| BLSD | Brake limited slip differential |
| BPP | Brake pedal position |
| BSW | Blind spot warning |
ABBREVIATION DESCRIPTION LIST (B)
| ABBREVIATION | DESCRIPTION |
|---|---|
| CKP | Crankshaft position |
| CL | Closed loop |
| CMP | Camshaft position |
| CPP | Clutch pedal position |
| CTP | Closed throttle position |
| CVT | Continuously variable transaxle/transmission |
ABBREVIATION DESCRIPTION LIST (C)
| ABBREVIATION | DESCRIPTION |
|---|---|
| D 1 | Drive range first gear |
| D 2 | Drive range second gear |
| D 3 | Drive range third gear |
| D 4 | Drive range fourth gear |
| DCA | Distance control assist |
| DDS | Downhill drive support |
| DFI | Direct fuel injection system |
| DLC | Data link connector |
| DTC | Diagnostic trouble code |
ABBREVIATION DESCRIPTION LIST (D)
| ABBREVIATION | DESCRIPTION |
|---|---|
| E/T | Exhaust temperature |
| EBD | Electric brake force distribution |
| EC | Engine control |
| ECL | Engine coolant level |
| ECM | Engine control module |
| ECT | Engine coolant temperature |
| ECV | Electrical control valve |
| EEPROM | Electrically erasable programmable read only memory |
| EFT | Engine fuel temperature |
| EGR | Exhaust gas recirculation |
| EGRT | Exhaust gas recirculation temperature |
| EGT | Exhaust gas temperature |
| EOP | Engine oil pressure |
| EP | Exhaust pressure |
| EPR | Exhaust pressure regulator |
| EPS | Electronically controlled power steering |
| ESP | Electronic stability program system |
| EVAP | Canister Evaporative emission canister |
| EVSE | Electric vehicle supply equipment |
| EXC | Exhaust control |
ABBREVIATION DESCRIPTION LIST (E)
| ABBREVIATION | DESCRIPTION |
|---|---|
| FC | Fan control |
| FCW | Forward collision warning |
| FIC | Fuel injector control |
| FP | Fuel pump |
| FR | Front |
| FRP | Fuel rail pressure |
| FRT | Fuel rail temperature |
| FTP | Fuel tank pressure |
| FTT | Fuel tank temperature |
ABBREVIATION DESCRIPTION LIST (F)
| ABBREVIATION | DESCRIPTION |
|---|---|
| GND | Ground |
| GPS | Global positioning system |
| GST | Generic scan tool |
ABBREVIATION DESCRIPTION LIST (G)
| ABBREVIATION | DESCRIPTION |
|---|---|
| HBMC | Hydraulic body-motion control system |
| HDD | Hard disk drive |
| HO2S | Heated oxygen sensor |
| HOC | Heated oxidation catalyst |
| HPCM | Hybrid power train control module |
ABBREVIATION DESCRIPTION LIST (H)
| ABBREVIATION | DESCRIPTION |
|---|---|
| I/M | Inspection and maintenance |
| IA | Intake air |
| IAC | Idle air control |
| IAT | Intake air temperature |
| IBA | Intelligent brake assist |
| IC | Ignition control |
| ICC | Intelligent cruise control |
| ICM | Ignition control module |
| IPDM | E/R Intelligent power distribution module engine room |
| ISC | Idle speed control |
| ISS | Input shaft speed |
ABBREVIATION DESCRIPTION LIST (I)
| ABBREVIATION | DESCRIPTION |
|---|---|
| KS | Knock sensor |
ABBREVIATION DESCRIPTION LIST (K)
| ABBREVIATION | DESCRIPTION |
|---|---|
| LBC | Li-ion battery controller |
| LCD | Liquid crystal display |
| LCU | Local control unit |
| LDP | Lane departure prevention |
| LDW | Lane departure warning |
| LED | Light emitting diode |
| LH | Left-hand |
| LIN | Local interconnect network |
ABBREVIATION DESCRIPTION LIST (L)
| ABBREVIATION | DESCRIPTION |
|---|---|
| M/T | Manual transaxle/transmission |
| MAF | Mass airflow |
| MAP | Manifold absolute pressure |
| MDU | Multi display unit |
| MI | Malfunction indicator |
| MIL | Malfunction indicator lamp |
ABBREVIATION DESCRIPTION LIST (M)
| ABBREVIATION | DESCRIPTION |
|---|---|
| NOX | Nitrogen oxides |
ABBREVIATION DESCRIPTION LIST (N)
| ABBREVIATION | DESCRIPTION |
|---|---|
| O2 | Oxygen |
| O2S | Oxygen sensor |
| OBD | On board diagnostic |
| OC | Oxidation catalytic converter |
| OD | Overdrive |
| OL | Open loop |
| OSS | Output shaft speed |
ABBREVIATION DESCRIPTION LIST (O)
| ABBREVIATION | DESCRIPTION |
|---|---|
| P/S | Power steering |
| PBR | Potentio balance resistor |
| PCV | Positive crankcase ventilation |
| PNP | Park/Neutral position |
| PSP | Power steering pressure |
| PTC | Positive temperature coefficient |
| PTO | Power takeoff |
| PWM | Pulse width modulation |
ABBREVIATION DESCRIPTION LIST (P)
| ABBREVIATION | DESCRIPTION |
|---|---|
| RAM | Random access memory |
| RAS | Rear active steer |
| RH | Right-hand |
| ROM | Read only memory |
| RPM | Engine speed |
| RR | Rear |
ABBREVIATION DESCRIPTION LIST (R)
| ABBREVIATION | DESCRIPTION |
|---|---|
| SAE | Society of Automotive Engineers, Inc. |
| SCK | Serial clock |
| SDS | Service Data and Specifications |
| SRT | System readiness test |
| SST | Special Service Tools |
ABBREVIATION DESCRIPTION LIST (S)
| ABBREVIATION | DESCRIPTION |
|---|---|
| TC | Turbocharger |
| TCM | Transmission control module |
| TCS | Traction control system |
| TCU | Telematics communication unit |
| TP | Throttle position |
| TPMS | Tire pressure monitoring system |
| TSS | Turbine shaft speed |
| TWC | Three way catalytic converter |
ABBREVIATION DESCRIPTION LIST (T)
| ABBREVIATION | DESCRIPTION |
|---|---|
| USS | Uphill start support |
ABBREVIATION DESCRIPTION LIST (U)
| ABBREVIATION | DESCRIPTION |
|---|---|
| VCM | Vehicle control module |
| VDC | Vehicle dynamics control system |
| VIN | Vehicle identification number |
| VSS | Vehicle speed sensor |
ABBREVIATION DESCRIPTION LIST (V)
| ABBREVIATION | DESCRIPTION |
|---|---|
| WOT | Wide open throttle |
ABBREVIATION DESCRIPTION LIST (W)
| ABBREVIATION | DESCRIPTION |
|---|---|
| 1 1 | 1st range first gear |
| 1 2 | 1st range second gear |
| 1GR | First gear |
ABBREVIATION DESCRIPTION LIST (1)
| ABBREVIATION | DESCRIPTION |
|---|---|
| 2 1 | 2nd range first gear |
| 2 2 | 2nd range second gear |
| 2GR | Second gear |
| 2WD | 2-wheel drive |
ABBREVIATION DESCRIPTION LIST (2)
| ABBREVIATION | DESCRIPTION |
|---|---|
| 3GR | Third gear |
ABBREVIATION DESCRIPTION LIST (3)
| ABBREVIATION | DESCRIPTION |
|---|---|
| 4GR | Fourth gear |
| 4WAS | Four wheel active steer |
| 4WD | Four wheel drive |
ABBREVIATION DESCRIPTION LIST (4)
| ABBREVIATION | DESCRIPTION |
|---|---|
| 5GR | Fifth gear |
ABBREVIATION DESCRIPTION LIST (5)
| ABBREVIATION | DESCRIPTION |
|---|---|
| 6GR | Sixth gear |
ABBREVIATION DESCRIPTION LIST (6)
| ABBREVIATION | DESCRIPTION |
|---|---|
| 7GR | Seventh gear |
ABBREVIATION DESCRIPTION LIST (7)
This vehicle has both new standard based on ISO* and previous standard bolts/nuts. There are some differences between these two types of bolts/nuts; shape of the head, grade of strength, hexagonal width across flats and the standard tightening torque.
- For guidance in discriminating, refer to " «TIGHTENING TORQUE TABLE (NEW STANDARD INCLUDED)»(ref-523989-S00523828692013012500000) ".
- The new standard machine screws and tapping screws have a head of ISO standard Torx recess.
- If the tightening torque is not described in the description or figure, refer to " «TIGHTENING TORQUE TABLE (NEW STANDARD INCLUDED)»(ref-523989-S00523828692013012500000) ". *ISO: International Organization for Standardization
Observe the following precautions to ensure safe and proper servicing. These precautions are not described in each individual section
OPERATION PROCEDURE
- Connect both battery cables. NOTE: Supply power using jumper cables if battery is discharged.
- Turn the 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 ignition switch from ACC position to ON position, then to LOCK position. (The steering wheel will lock when the ignition switch is turned to LOCK position.)
- Perform self-diagnosis check of all control units using CONSULT.
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 section illustrates ways to simulate the conditions/environment under which the owner experiences an electrical incident
The section 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. | |
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 5
| 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 CHART
CASE 2
Scheme 6
| 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 CHART
Scheme 7
- When CONSULT/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 Software Operation Manual" for more information.