Honda ACCORD HYBRID 2005 Service Manual page 483

DTC P2123: APP Sensor A (Throttle Position
Sensor D) Circuit High Voltage
1. Turn the ignition switch ON (II).
2. Check the APP SENSOR-A in the DATA LIST w i t h
the HDS.
Is there about 4.9 V or more?
Y E S — G o t o step 3.
NO—Intermittent failure, system is OK at this time.
Check for poor connections or loose terminals at
APP sensor A and the PCM. •
3. Turn the ignition switch OFF.
4. Disconnect the APP sensor 6P connector.
5. Turn the ignition switch ON (II).
6. At the wire harness side, measure voltage between
APP sensor 6P connector terminals No. 5 and No. 6.
APP S E N S O R 6P C O N N E C T O R
1 2 3 4
5 6
VCC3 (YEL/GRN) S G 3 (GRN)
Wire side of female t e r m i n a l s
Is there about 5 V?
Y E S — G o t o step 8.
N O — G o t o step 7.
7. Measure voltage between PCM connector
terminals C4 and C6.
PCM C O N N E C T O R C (22P)
r @ i
S G 3 (GRN)
1 2 3 4 5 6 7
8 9 10 11 12 13 14 15
16 17 18 19 20 21 22
V C C 3 ( Y E L / G R N )
W i r e side of female terminals
Is there about 5 V?
Y E S — R e p a i r open in the w i r e between the PCM
(C4) and APP sensor A, then go to step 10.
N O — G o t o step 14.
8. Turn the ignition switch OFF.
9. Replace the APP sensor (see page 11-265).
10. Turn the ignition switch ON (II).
11. Reset the PCM w i t h the HDS.
12. Do the PCM idle learn procedure (see page 11-340).
13. Check for Temporary DTCs or DTCs w i t h the HDS.
Are any Temporary DTCs or DTCs indicated?
Y E S — I f DTC P2123 is indicated, check for poor
connections or loose terminals at APP sensor A and
the PCM, then go to step 1. If any other Temporary
DTCs or DTCs are indicated, go to the indicated
D T C s troubleshooting.
NO—Troubleshooting is complete. •
(cont'd)
11-243