TROUBLE SYMPTOM CHART


caution
  • ABS may operate in the following conditions without hard braking: Low mu road surface, high-speed turn, and bumpy road surface. When asking the customers, confirm that they have/have not encountered ABS operation in corresponding conditions.
  • During ABS operation, the brake pedal is pulled forward gradually, and the noise occurs at the same time. This is because the brake line pressure varies intermittently to prevent the wheel lock, and not a system malfunction.
  • During diagnosis, a diagnosis code associated with other system may be set when the ignition switch is turned on with connector(s) disconnected. On completion, confirm all systems for diagnosis code(s). If diagnosis code(s) are set, erase them all.
Trouble symptom
Inspection procedure number
Reference page
M.U.T.-III communication with ASTC system is impossible.
1

The ASTC indicator lamp flashes and the multi-information display shows that the brake system is hot.
2

The brake warning lamp does not go out (ABS warning lamp is OFF) although the parking brake is released.
3

When the ignition switch is turned to the "ON" position (engine stopped), the ABS warning lamp does not illuminate.
4

Brake warning lamp does not illuminate when the ignition switch is turned to ON position (Engine stopped).
5

ABS warning lamp stays ON after the engine is started.
6

ASTC indicator lamp stays ON after the engine is started.
7

ASTC OFF indicator lamp stays ON after the engine is started.
8

The ASTC system cannot be disabled when ASC OFF switch is pressed to turn the system OFF.
9

Abnormality in brake operation.
10

Abnormality in active stability control system operation.
11

ASTC-ECU power supply circuit system.
12

ABS/ASC/TCL operates too frequently.
13

HSA (Hill Start Assist) does not work.
14

HSA (Hill Start Assist) works on a flat road.
15

The initial check sound of hydraulic unit is loud
16

The hill descent control does not work. <4WD>
17

The hill descent control is not turned on or off by operating the hill descent control switch. <4WD>
18

You cannot enter the off-road mode when you operate the drive mode-selector. <4WD>
19

The off-road mode is switched among "GRAVEL", "MUD/SNOW", "SAND" and "ROCK" by operating the off-road mode selector. <4WD>
20

ESS inoperative or improper operative.
21