Honda ACCORD HYBRID 2005 Service Manual page 492

Electronic Throttle Control 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 P2138: APP Sensor A/B Incorrect Voltage
Correlation
1. Turn the ignition switch ON (II).
2. Clear the DTC w i t h the HDS.
3. Press the accelerator pedal to the floor.
4. Check for Temporary DTCs or DTCs w i t h the HDS.
Is DTC P2138 indicated?
Y E S — G o t o step 5.
NO—Intermittent failure, system is OK at this t i m e .
Check for poor connections or loose terminals at
the APP sensor and the P C M . B
5. Check APP SENSOR A and APP SENSOR B in the
DATA LIST w i t h the HDS.
Are they the same voltage?
Y E S — G o t o step 6.
N O — G o t o step 11.
6. Turn the ignition switch OFF.
7. J u m p the SCS line w i t h the HDS.
8. Disconnect the APP sensor 6P connector.
9. Disconnect PCM connector C (22P).
10. Check for continuity between PCM connector
terminals C5 and C17.
PCM CONNECTOR C (22P)
1 2
3 4 5 6 7
8 9 10 11 12 13 14 15
16 17 18 19 20 21 22
A P S A (RED/BLU)
A P S B (RED/YEL)
W i r e side of female t e r m i n a l s
Is there continuity?
YES—Repair short in the wires between the PCM
terminals (C5, C17), then go to step 13.
N O — G o t o step 2 1 .
11. Turn the ignition switch OFF.
12. Replace the APP sensor (see page 11-265).
13. Reconnect all connectors.
14. Turn the ignition switch ON (II).
15. Reset the PCM w i t h the HDS.
16. Do the PCM idle learn procedure (see page 11-340).
17. Turn the ignition switch OFF.
18. Turn the ignition switch ON (II).
19. Press the accelerator pedal t o the floor.
11-252