Wheel Sensor (Electrical Noise/Intermittent Interruption) - Honda 2002 Accord Manual

ABS
Check the resistance between the appropriate
wheel sensor ( + ) and ( —) circuit terminals (see
table).
DTC Appropriate Terminal DTC
( + )Side
( - ) S i d e
11 (Right-front) A9: FRWI + ) A8: F R W ( - )
13 (Left-front) A7:FLW( + ) A6:FLW( )
15 (Right-rear) A19: RRW( + ) A20:RRW(-)
17 (Left-rear)
A17:RLW( + ) A18: R L W ( - )
A B S C O N T R O L U N I T C O N N E C T O R A ( 2 2 P )
F L W ( + ) ( G R N / B L U ) F R W ( - ) ( G R N )
F L W ( - ) ( B R N )
_ r x _ n .
F R W ( + ) ( G R N / B L K )
J1_TL_
R L W ( + ) ( L T B L U ) R R W ( - ) ( B L U / Y E L )
R L W ( - ) ( G R Y ) R R W ( + ) ( G R N / Y E L )
W i r e s i d e o f f e m a l e t e r m i n a l s
Is the resistance 450-2,000 Q ?
Y E S —Check for loose A B S control unit connectors.
If necessary, substitute a known-good A B S control
unit, and r e c h e c k *
NO G o t o step 7.
7. Disconnect the harness 2P connector from the
appropriate wheel sensor, and check the resistance
between the ( + ) and (—) terminals of the wheel
sensor.
Is the resistance 450-2,000 Q ?
Y E S - R e p a i r open in the ( + ) or ( —) circuit wire, or
short between the ( + ) circuit wire and the (—)
circuit wire between the A B S control unit and the
wheel s e n s o r . •
N O - R e p l a c e the wheel s e n s o r . •
DTC 1 2 , 1 4 , 1 6 , 1 8 ; Wheel Sensor (Electrical
Noise/Intermittent Interruption)
NOTE: If the A B S indicator comes on for the reasons
described below/the indicator goes off when you test-
drive the vehicle at 19 mph (30 km/h).
• Only the drive wheels rotated
• The vehicle spun
• Electrical noise
1. Visually check for appropriate wheel sensor and
pulser installation (see table).
DTC Appropriate Wheel Sensor
12 Right-front
14 Left-front
16 Right-rear
18 Left-rear
Are they installed correctly?
Y E S - G o to step 2.
IMO —Reinstall or replace the appropriate wheel
sensor or pulser. •
2. Disconnect the A B S control unit connector A (22P).
3. Measure the resistance between the appropriate
wheel sensor ( + ) and ( —) circuit terminals (see
table).
DTC Appropriate Terminal DTC
( + )Side ( )Side
11 (Right-front) A9: FRW( + > A8: F R W ( - )
13 (Left-front) A7: FLW( + ) A6: F L W ( - )
15 (Right-rear)
A19: RRW( + )
A20: R R W M
17 (Left-rear) A17: RLW( + ) A18: RLW( -)
Is there less than 450 Q ?
Y E S — Repair short to wire between the appropriate
wheel sensor ( + ) and ( —) c i r c u i t s . •
N O - G o t o step 4.
(cont'd)
19-53