Honda ACCORD HYBRID 2005 Service Manual page 404

PGM-FI System
D T C T r o u b l e s h o o t i n g ( c o n t ' d )
DTC P2243: Rear A/F Sensor (Bank 1,
Sensor 1) VCENT Line High Voltage
DTC P2247: Front A/F Sensor (Bank 2,
Sensor 1) VCENT Line High Voltage
NOTE: Information marked w i t h an asterisk (*) applies
to the front bank (Bank 2).
1. Turn the ignition switch ON (II).
2. Clear the DTC w i t h the HDS.
3. Start the engine. Hold the engine speed at
3,000 rpm w i t h o u t load (in Park or neutral) until the
radiator fan comes on, then let it idle 2 minutes.
4. Check for Temporary DTCs or DTCs w i t h the HDS.
Is DTC P2243 and/or P2247* indicated?
Y E S — G o t o step 5.
NO—Intermittent failure, system is OK at this time.
Check for poor connections or loose terminals at
the A/F sensor (Sensor 1) and the PCM. •
5. Turn the ignition switch OFF.
6. J u m p the SCS line w i t h the HDS.
7. Disconnect the A/F sensor (Sensor 1) 8P connector.
8. Disconnect PCM connector B (24P).
9. Connect A/F sensor (Sensor 1) 8P connector
terminal No. 8 to body ground w i t h a j u m p e r wire.
A / F S E N S O R (SENSOR 1) 8P C O N N E C T O R
1 2 3 4
/
6 7
8
VCENTB1 (RED)
V C E N T B 2 (RED/WHT)*
J U M P E R WIRE
Wire side of female terminals
10. Check for continuity between PCM connector
terminal B13 (B21)* and body g r o u n d .
PCM CONNECTOR B (24P)
VCENTB1 (RED)
I
1 2
3 | 4 5
6 7
8 9 10 11 12 13 14 15
/
17 18 19
20 21 22 23 24
V C E N T B 2 (RED/WHT)*
Wire side of female terminals
Is there continuity?
YES—Go to step 1 1 .
NO—Repair open in the w i r e between the PCM
(B13 (B21)*) and the A/F sensor (Sensor 1), then go
to step 15.
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