3-56 DRIVE-CONTROL COMPONENTS - ABS
Diagnostic Trouble Codes
Conditions detected as a result of diagnosis are
These codes are readable by connecting the scan
associated with a total of 14 codes including that
tool.
for normal state, and the codes are stored in the
volatile memory. When the scan tool is not used, they are alsoread-
able with a voltmeter which deflects in a pattern
Even if the ignition key is placed in the “OFF” posi-
unique to each code.
tion, the contents of the memory are not cleared,
as the memory remains powered by a backup power
supply.
1. Diagnostic items, diagnostic codes and detection condition
Detection
Code No. display Inspection item Diagnostic contentcondi-
on Scan tool tions
A B
11*’ Front right wheel speed sensor
12*’ Front left wheel speed sensorOpen circuit or short in + wire
13*’ Rear right wheel speed sensor x x
14*’ Rear left wheel speed sensor
15*’ Wheel speed sensor system
Abnormal output signal X
21 G sensor Broke wire in G sensor or OFF mal-X
function
22*2 Stop light switch system
Open circuit or ON malfunction
X
41 Front left solenoid valve
No response to solenoid valve drive
42 Front right solenoid valvesignal X
43 Rear solenoid valve Current value in both valves is differ-
ent when in same mode X
51 Valve relay Valve relay OFF failure x x
53*3 Motor relay or MotorMotor relay OFF failure and motorX
drive failure
55 ABS-ECU ABS-ECU internal failure (programx x
maze, etc)
No fault code(The system is in order)
displayed
Detection conditions
A: During system check immediately after staritng
B: During operation