Subaru Impreza 2003 Service Manual page 2427

DIAGNOSTICS PROCEDURE WITHOUT DIAGNOSTIC TROUBLE CODE (DTC)
AA:DTC 54
— ABNORMAL STOP LIGHT SWITCH —
DIAGNOSIS:
• Faulty stop light switch
TROUBLE SYMPTOM:
• ABS does not operate.
WIRING DIAGRAM:
STOP LIGHT
SWITCH
B64
1 2
Step
1 CHECK STOP LIGHTS COME ON.
Depress the brake pedal.
2
LHD
1
B64
LHD
*1 ABSCM&H/U
B65
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
1 2
3 4
27 28 29 30 31
Do the stop lights come on?
ABS-87
BATTERY
RHD
B61
F44
*1
16 17 18 19 20 21 22
23 24 25 26
Check
ABS (DIAGNOSTICS)
E
STOP LIGHT
SWITCH
OC WC
1 2
2 3
B64 : OC
B65 : WC
OC :
WITHOUT CRUISE
CONTROL
WC : WITH CRUISE
CONTROL
B301
*1: LHD
RHD
F49
F44
1 2 3 4
5 6 7 8
Yes
Go to step 2. Repair the stop
lights circuit.
ABS00366
No