Honda ACCORD HYBRID 2005 Service Manual page 635

DTC P0404: EGR Control Circuit Range/
Performance Problem
1. Turn the ignition switch ON (II).
2. Clean the DTC w i t h the HDS.
3. Start the engine. Hold the engine speed at
3,000 r p m w i t h o u t load (in Park or neutral) until the
radiator fan comes o n , then let it idle.
4. Do the EGR TEST in the INSPECTION MENU w i t h
the HDS.
Is the result OK?
Y E S — I n t e r m i t t e n t failure, system is OK at this t i m e .
Clean any carbon build-up on the EGR valve w i t h
throttle plate and induction c l e a n e r . •
NO—Go to step 5.
5. Turn the ignition switch OFF.
6. Disconnect the EGR valve 6P connector.
7. At the sensor side, measure resistance between
EGR valve 6P connector terminals No. 1 and No. 2.
E G R V A L V E 6P C O N N E C T O R
E G R P
S G 2
T e r m i n a l side of male t e r m i n a l s
Is there 100 kQ or more?
Y E S — G o t o step 26.
N O — G o t o step 8.
8. Measure resistance between EGR valve 6P
connector terminals No. 1 and No. 3.
EGR V A L V E 6P C O N N E C T O R
E G R P
V C C 2
T e r m i n a l side of male t e r m i n a l s
Is there 100 k& or more?
Y E S — G o t o step 26.
N O — G o t o step 9.
9. Check for continuity between EGR valve 6P
connector terminal No. 6 and body g r o u n d .
E G R V A L V E 6P C O N N E C T O R
1 2
3
4
/
6
PG1 (BLK)
W i r e side of female t e r m i n a l s
Is there continuity?
Y E S — G o to step 10.
NO—Repair open in the w i r e between the EGR
valve and G101, then go to step 27.
(cont'd)
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