DESCRIPTION
DTC Code | Detection Condition | Trouble Area |
---|---|---|
C1782 | While the power switch is on (IG), the voltage at terminal B is 10 V or less, or 16 V or higher for 0.5 seconds. |
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WIRING DIAGRAM
INSPECTION PROCEDURE
Note
Before performing troubleshooting, inspect the connectors of related circuits.
Before replacing the absorber control ECU, perform all of the following again: 1) symptom simulation Click here; 2) DTC inspection Click here; and 3) GTS inspection (ECU Data List or Active Test Click here. If no malfunctions are found in other areas, replace the absorber control ECU.
When the absorber control ECU is replaced, switch to test mode and check that all test mode DTCs are cleared when their respective deletion conditions are met Click here.
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
PROCEDURE
READ VALUE USING GTS (IG POWER SOURCE VOLTAGE)
Turn the power switch off.
Connect the GTS to the DLC3.
Turn the power switch on (IG).
Turn the GTS on.
Enter the following menus: Chassis / Air suspension / Data List.
Tester Display | Measurement Item/Range | Normal Condition | Diagnostic Note |
---|---|---|---|
IG Power Source Voltage | ECU power supply voltage/ Min.: 0.0 V Max.: 25.5 V |
11 to 14 V (Actual ECU power supply voltage): power switch on (IG) | - |
OK |
---|
The normal condition value is displayed on the GTS. |
NG |
INSPECT BATTERY Click here |
OK |
CHECK FOR DTC
Clear the DTCs Click here.
Turn the power switch off.
Check for DTCs Click here.
Result | Proceed to |
---|---|
DTC is not output | A |
DTC is output | B |
B |
REPLACE ABSORBER CONTROL ECU Click here |
A |
USE SIMULATION METHOD TO CHECK Click here
INSPECT BATTERY
Check the battery voltage.
Standard voltage |
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11 to 14 V |
Result | Proceed to |
---|---|
OK | A |
NG (for 2GR-FXE) | B |
NG (for 2AR-FSE) | C |
B |
CHECK OR REPLACE CHARGING SYSTEM OR BATTERY Click here |
C |
CHECK OR REPLACE CHARGING SYSTEM OR BATTERY Click here |
A |
CHECK TERMINAL VOLTAGE (B)
Disconnect the absorber control ECU connector.
*a | Front view of wire harness connector (to Absorber Control ECU) |
Measure the voltage according to the value(s) in the table below.
Standard Voltage | ||||||
---|---|---|---|---|---|---|
|
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
OK |
CHECK HARNESS AND CONNECTOR (GND TERMINAL)
Disconnect the absorber control ECU connector.
*a | Front view of wire harness connector (to Absorber Control ECU) |
Measure the resistance according to the value(s) in the table below.
Standard Resistance | ||||||
---|---|---|---|---|---|---|
|
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
OK |
REPLACE ABSORBER CONTROL ECU Click here