Honda ACCORD HYBRID 2005 Service Manual page 1261

D T C T r o u b l e s h o o t i n g
DTC 1: Power Relay Stuck ON
DTC 2: Fail-safe Relay Stuck ON
1. Turn the ignition switch ON (II).
2. Clear the DTC w i t h the HDS.
3. Start the engine.
4. Wait at least 10 seconds.
Does the EPS indicator come on and DTC 1 or
DTC 2 indicated?
YES—Check for loose terminals and poor
connections at the EPS control unit. If necessary,
substitute a known-good EPS control unit and
recheck. •
NO—The system is OK at this t i m e . •
DTC 3: Lower FET Stuck ON
1. Disconnect EPS control unit connector A (2P) and
the motor 2P connector.
2. Check for continuity between EPS control unit
connector A (2P) terminal No. 2 and m o t o r 2P
connector terminal No. 2.
E P S C O N T R O L UNIT
C O N N E C T O R A (2P)
MOTOR 2P C O N N E C T O R
M + (RED)
HID
M T R + (RED)
W i r e side of f e m a l e t e r m i n a l s
Is there continuity?
Y E S — G o t o step 3.
NO—Repair open in the w i r e between EPS control
unit and m o t o r . •
3. Check for continuity between EPS control unit
connector A (2P) terminal No. 1 and m o t o r 2P
connector terminal No. 1.
E P S C O N T R O L UNIT MOTOR 2P C O N N E C T O R
C O N N E C T O R A (2P)
M— (BLU)
M T R -
0
2)
Wire side of female t e r m i n a l s
Is there continuity?
Y E S — G o t o step 4.
NO—Repair open in the w i r e between EPS control
unit and motor. •
(cont'd)
17-29