| Last Modified: 11-29-2007 | 1.6 S | |
| Service Category: Suspension | Section: Suspension Control System | |
| Model Year: 2008 | Model: Sequoia | Doc ID: RM000001N8Y00DX |
| Title: SUSPENSION CONTROL: AIR SUSPENSION SYSTEM (w/ AVS): DIAGNOSTIC TROUBLE CODE CHART (2008 Sequoia) | ||
DIAGNOSTIC TROUBLE CODE CHART
HINT:
- Inspect the fuse before inspecting the suspected areas as shown in the chart below.
- If no abnormality is found when the parts are inspected, inspect the suspension control ECU.
- If a trouble code is displayed during the DTC check, check the circuit listed for that code. For details of each code, refer to "See page" in the table below.
Air Suspension
|
DTC Code |
Detection Item |
Trouble Area |
Manual Indicator Light*1 |
Memory*2 |
See page |
|---|---|---|---|---|---|
|
C1713 |
Rear Height Control Sensor RH Circuit Malfunction |
- Wire Harness or connector - Rear height control sensor sub-assembly RH - Suspension control ECU |
○ |
○ |
|
|
C1714 |
Rear Height Control Sensor LH Circuit Malfunction |
- Wire harness or connector - Rear height control sensor sub-assembly LH - Suspension control ECU |
○ |
○ |
|
|
C1715 |
Front Acceleration Sensor RH Malfunction |
- Wire harness or connector - Front acceleration sensor RH - Suspension control ECU |
X |
○ |
|
|
C1716 |
Front Acceleration Sensor LH Malfunction |
- Wire harness or connector - Front acceleration sensor LH - Suspension control ECU |
X |
○ |
|
|
C1717 |
Rear Acceleration Sensor Malfunction |
- Suspension control ECU |
X |
○ |
|
|
C1731 |
Front Damping Force Control Actuator RH Circuit Malfunction |
- Wire harness or connector - Front absorber control actuator RH - Suspension control ECU |
X |
○ |
|
|
C1732 |
Front Damping Force Control Actuator LH Circuit Malfunction |
- Wire harness or connector - Front absorber control actuator LH - Suspension control ECU |
X |
○ |
|
|
C1733 |
Rear Damping Force Control Actuator RH Circuit Malfunction |
- Wire harness or connector - Rear absorber control actuator RH - Suspension control ECU |
X |
○ |
|
|
C1734 |
Rear Damping Force Control Actuator LH Circuit Malfunction |
- Wire harness or connector - Rear absorber control actuator LH - Suspension control ECU |
X |
○ |
|
|
C1745 |
Exhaust Solenoid Valve Circuit Malfunction |
- Wire harness or connector - Exhaust solenoid valve (Height control compressor) - Suspension control ECU |
○ |
○ |
|
|
C1746 |
Gate Solenoid Valve Circuit Malfunction |
- Wire harness or connector - Gate solenoid valve (Height control valve) - Suspension control ECU |
○ |
○ |
|
|
C1747 |
Leveling Solenoid Valve Circuit Malfunction |
- Wire harness or connector - Leveling solenoid valve (Height control valve) - Suspension control ECU |
○ |
○ |
|
|
C1751 |
Compressor Relay Coil Malfunction |
- Wire harness or connector - AIR SUS relay - Suspension control ECU |
○ |
○ |
|
|
C1752 |
Height Control Compressor Motor Circuit Malfunction |
- Wire harness or connector - Height control compressor - Suspension control ECU |
○ |
○ |
|
|
C1761 |
Continuous Electric Current to Height Control Compressor Motor |
- Air leakage from the air tube or each valve - Clogging in the air tube or each valve - AIR SUS relay - Leveling solenoid valve (Height control valve) - Gate solenoid valve (Height control valve) - Exhaust solenoid valve (Height control compressor) - Height control sensors - Wire harness or connector - Height control compressor - Suspension control ECU |
X |
○ |
|
|
C1762 |
Continuous Electric Current to Exhaust Solenoid |
- Clogging in the air tube or each valve - Wire harness or connector - Leveling solenoid valve (Height control valve) - Gate solenoid valve (Height control valve) - Exhaust solenoid valve (Height control compressor) - Suspension control ECU |
X |
X |
|
|
C1781 |
Suspension Control ECU Malfunction |
- Wire harness or connector - Suspension control ECU |
○/X |
○ |
|
|
C1782 |
Power Source Voltage Malfunction |
- Battery - Wire harness or connector - Suspension control ECU |
X |
X |
|
|
C1783 |
Speed Signal Communication Error |
- Speed sensors - Skid control ECU - Wire harness or connector - Suspension control ECU |
X |
○ |
|
|
C1791 |
Absorber Control Switch Circuit (Test Mode DTC) |
- Absorber control switch - Wire harness or connector - Suspension control ECU |
Test mode code |
- |
|
|
C1792 |
Height Control Switch Circuit (Test Mode DTC) |
- Height control switch - Wire harness or connector - Suspension control ECU |
Test mode code |
- |
|
|
C1793 |
Height Control Off Switch Circuit (Test Mode DTC) |
- Height control mode select switch - Wire harness or connector - Suspension control ECU |
Test mode code |
- |
|
|
C1796 |
Front Acceleration Sensor RH Malfunction (Test Mode DTC) |
- Front acceleration sensor RH - Wire harness or connector - Suspension control ECU |
Test mode code |
- |
|
|
C1797 |
Front Acceleration Sensor LH Malfunction (Test Mode DTC) |
- Front acceleration sensor LH - Wire harness or connector - Suspension control ECU |
Test mode code |
- |
|
|
C1798 |
Rear Acceleration Sensor Malfunction (Test Mode DTC) |
- Suspension control ECU |
Test mode code |
- |
|
|
U0100 |
Lost Communication with ECM / PCM "A" |
- CAN communication line - ECM - Suspension control ECU |
X |
X |
|
|
U0122 |
Lost Communication with Vehicle Dynamics Control Module |
- CAN communication line - Skid control ECU - Suspension control ECU |
X |
X |
|
|
U0126 |
Lost Communication with Steering Angle Sensor Module |
- CAN communication line - Steering angle sensor - Suspension control ECU |
X |
X |
|
HINT:
*1: For codes marked with a "○" in the "Manual Indicator Light" column, the height control manual indicator light blinks at 1-second intervals.
*2: The codes marked with a "○" in the "Memory" column are stored in the memory even when the ignition switch is off, but the codes marked with "X" are not.
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