DESCRIPTION
| WARNING | Vehicles are equipped with air bag supplemental restraint system. Before attempting any repairs involving steering column, instrument panel or related components, see SERVICE PRECAUTIONS and DISABLING & ACTIVATING AIR BAG SYSTEM in appropriate AIR BAG RESTRAINT SYSTEMS article. |
| CAUTION | When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION before disconnecting battery. |
The vehicle height adjustment system improves occupants' in-and-out access by quickly lowering vehicle height at the touch of a switch. By raising vehicle height, the occurrence of road interference can be minimized on unpaved roads. Also, by maintaining a constant vehicle height regardless of load conditions such as number of occupants or weight of cargo, under prescribed loading condition, suspension stroke can be utilized effectively to ensure constantly stable riding comfort.
The damping force control system controls suspension to achieve an optimal damping force in accordance with roughness of road surface. Furthermore, through the use of various types of sensors, this system detects vehicle's operating condition to obtain an optimal damping force to provide riding comfort, stability and controllability.
Scheme 19
- The height control indicator light has been provided below the tachometer in the combination meter. It informs the driver by illuminating the indicator light for present vehicle height position. When the height select switch is pressed to effect height control, the indicator for present height position turns off and the indicator light for target height position flashes. After height control is completed, the indicator light for height position that has been reached illuminates. For location of indicator lights (Scheme 19)
- The height control OFF indicator light is located under the height control indicator light. This lights up to inform driver when active height control system is turned off by the height control switch. This indicator also flashes to alert driver when the suspension control ECU detects a malfunction in active height control and electric modulated suspension. See «SELF-DIAGNOSTIC SYSTEM»(ref-154858-S36334289402003052900000).
Code Description
- DTC C0200/31 - DTC C0215/34 Speed Sensor Circuit
- DTC C1711/11 - C1713/13 - Height Control Sensor Circuit
- DTC C1718/18 - Fluid Pressure Sensor Circuit
- DTC C1719/19 - Fluid Temperature Sensor Circuit
- DTC C1721/21 - C1723/23 - Damping Force Control Actuator Circuit
- DTC C1731/31 - C1736/36 - Control Valve Solenoid & Accumulator Solenoid Circuit
- DTC C1741/41 - AHC Motor Relay Circuit
- DTC C1743/43 - AHC Main Relay Circuit
- DTC C1751/51 - AHC Pump & Motor Circuit
- DTC C1761/61 - Malfunction In ECU (Memory Error)
- DTC C1762/62 - Fluid Pressure Abnormality (Pump & Motor Do Not Supply Fluid)
- DTC C1763/63 & C1764/64 - Fluid Pressure Abnormality (Valve Does Not Open)
- DTC C1776/76 - Speed Sensor Circuit Abnormal
- DTC C1781/81 - Steering Angle Sensor Circuit
- DTC 1782/82 - Stop Light Switch Circuit
- DTC 1783/83 - Door Courtesy Switch Circuit
- DTC C1786/86 - Height Select Switch Circuit
- DTC C1787/87 - Damping Mode Select Switch Circuit
- DTC C1788/88 - Height Control Switch Circuit
- DTC C1789/89 - L4 Position Switch Circuit
- DTC C1794/94 & C1985/95 - Vehicle Speed Sensor Circuit
- DTC C1796/96 - Center DIFF. Lock Position Switch Circuit
TEST D: HEIGHT CONTROL OPERATION TEST (ACTIVE TEST)
Note. DO NOT raise vehicle height higher than "HI" position when raising with active test.
- Using special tool (09843-18020), jumper between terminals Ts and E 1 of (DLC1). see scheme 125
- Start engine. Push "DOWN" button of height select switch 5 times or more within 5 seconds. (Scheme 20) Height control OFF indicator light should flash at.25 second intervals.
- Operate each switch and check operation of height control of each wheel. (Scheme 21)
