Subaru Legacy 2003 Service Manual page 2809

ABS (DIAGNOSTICS)
5. FREEZE FRAME DATA
NOTE:
• Data stored at the time of trouble occurrence is shown on display.
• Each time trouble occurs, the latest information is stored in the freeze frame data in memory.
• If freeze frame data is not properly stored in memory (due to a drop in ABSCM power supply, etc.), a DTC,
preceded by a question mark "?", appears on the select monitor display. This shows it may be an unreliable
reading.
• In case of no trouble code, the initial value of freeze frame data will be displayed.
Display screen
FR wheel speed
FL wheel speed
RR wheel speed
RL wheel speed
ABSCM power voltage
G sensor output voltage
Motor relay monitor
Stop light switch
ABS signal to TCM
ABS-AT control
ABS operation signal
6. ANALOG DATA ARE DISPLAYED.
Display screen
Wheel speed detected by the Front Right
FR wheel speed ABS sensor is displayed in km/h or mile/
h.
Wheel speed detected by the Front Left
FL wheel speed ABS sensor is displayed in km/h or mile/
h.
Wheel speed detected by the Rear Right
RR wheel speed ABS sensor is displayed in km/h or mile/
h.
Wheel speed detected by the Rear Left
RL wheel speed ABS sensor is displayed in km/h or mile/
h.
Stop light switch monitor voltage is dis-
Stop light switch
played.
Refers to vehicle acceleration detecting
G sensor output
by the analog G sensor. It appears on
voltage
the select monitor display in volts.
SUBARU SELECT MONITOR
Contents to be monitored
Wheel speed detected by the Front Right ABS sensor is displayed in
km/h or mile/h.
Wheel speed detected by the Front Left ABS sensor is displayed in km/
h or mile/h.
Wheel speed detected by the Rear Right ABS sensor is displayed in
km/h or mile/h.
Wheel speed detected by the Rear Left ABS sensor is displayed in km/
h or mile/h.
Power (in volts) supplied to ABSCM&H/U appears on the select monitor
display.
Refers to vehicle acceleration detected by the analog G sensor. It
appears on the select monitor display in volts.
Motor relay operation monitor signal
Stop light switch signal
ABS operation signal from ABS control module to TCM
ABS operation signal from ABS control module to TCM
ABS operation signal
Contents to be monitored
7. ON/OFF DATA ARE DISPLAYED.
Display screen
Stop light switch
Valve relay signal
Motor relay signal
ABS signal to TCM
ABS warning light
Valve relay monitor
Motor relay monitor
CCM signal
ABS-18
Initial value
255 km/h [158 mile/h]
↑
↑
↑
18 V
5 V
ON
OFF
OFF
OFF
ON
Contents to be monitored
Stop light switch signal
Valve relay signal
Motor relay signal
ABS operation signal from ABS con-
trol module to TCM
ABS warning light
Valve relay operation monitor signal
Motor relay operation monitor signal
ABS operation signal from ABS con-
trol module to TCM