DTC P1129: MAP Sensor Circuit Higher Than Expected Honda CR-V II рестайлинг

1. Check for vacuum leaks in these parts: PCV valve PCV hose EVAP canister purge valve Intake manifold Throttle body Brake booster and hose Are these any vacuum leaks? YES - Repair or replace the leaking part(s), then go to step 9 . NO - Go to step 2.
2. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on, then let it idle.
3. Check the MAP SENSOR in the DATA LIST with the HDS. Is there more than 36.9 kPa (11.0 in.Hg, 277 mmHg) or 1.1 V held for more than for 5 seconds? YES - Go to step 7 . NO - Go to step 4.
4. Clear the DTC with the HDS.
5. Test-drive under these conditions: Engine coolant temperature above 158 °F (70 °C) A/T in D position (M/T in 5th gear) Maintain a vehicle speed between 55 mph (88 km/h) and 75 mph (121 km/h) for 10 seconds Decelerate with throttle fully closed for at least 2 seconds
6. Monitor the OBD STATUS for DTC P1129 in the DTCs MENU with the HDS. Does the screen indicate FAILED? YES - Go to step 7. NO - If the screen indicates PASSED, intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the MAP sensor and the ECM/PCM. If the screen indicates NOT COMPLETED, go to step 5 and recheck.
7. Turn the ignition switch OFF.
8. Replace the MAP sensor (see «MAP SENSOR REPLACEMENT»(ref-219371-S34647344162006021400000) ).
9. Turn the ignition switch ON (II).
10. Reset the ECM/PCM with the HDS.
11. Do the ECM/PCM idle learn procedure (see «ECM/PCM IDLE LEARN PROCEDURE»(ref-219374-S42320443812006021400000) ).
12. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on, then let it idle.
13. Test-drive under these conditions: Engine coolant temperature above 158 °F (70 °C) A/T in D position (M/T in 5th gear) Maintain a vehicle speed between 55 mph (88 km/h) and 75 mph (121 km/h) for 10 seconds Decelerate with throttle fully closed for at least 2 seconds
14. Check for Temporary DTCs or DTC with the HDS. Are any Temporary DTCs or DTCs indicated? YES - If DTC P1129 is indicated, check for poor connections or loose terminals at the MAP sensor and the ECM/PCM, then go to step 1 . If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting. NO - Go to step 15.
15. Monitor the OBD STATUS for DTC P1129 in the DTCs MENU with the HDS. Does the screen indicate PASSED? YES - Troubleshooting is complete. NO - If the screen indicates FAILED, check for poor connections or loose terminals at the MAP sensor and the ECM/PCM, then go to step 1 . If the screen indicates NOT COMPLETED, go to step 12 and recheck.

Scheme 97

Scheme 98

Scheme 99

Scheme 100

1. Turn the ignition switch ON (II).
2. Clear the DTC with the HDS.
3. Start the engine, and let it idle 20 seconds.
4. Check for Temporary DTCs or DTCs with the HDS. Is DTC P1157 indicated? YES - Go to 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 ECM/PCM.
5. Turn the ignition switch OFF.
6. Jump the SCS line with the HDS.
7. Disconnect the A/F sensor (Sensor 1) 4P connector.
8. Disconnect ECM/PCM connector A (31P).
9. Connect A/F sensor (Sensor 1) 4P connector terminals No. 1 and No. 2 with a jumper wire.
10. Check for continuity between ECM/PCM connector terminals A28 and A31. Is there continuity? YES - Go to step 14 . NO - Go to step 11.
11. Remove the jumper wire from the A/F sensor (Sensor 1) 4P connector.
12. Connect A/F sensor (Sensor 1) 4P connector terminal No. 1 to body ground with a jumper wire.
13. Check for continuity between ECM/PCM connector terminal A31 and body ground. Is there continuity? YES - Repair open in the wire between the ECM/PCM (A28) and the A/F sensor (Sensor 1), then go to step 15 . NO - Repair open in the wire between the ECM/PCM (A31) and the A/F sensor (Sensor 1), then go to step 15 .
14. Replace the A/F sensor (Sensor 1) (see «A/F SENSOR REPLACEMENT»(ref-219371-S38996603792006021400000) ).
15. Reconnect all connectors.
16. Turn the ignition switch ON (II).
17. Reset the ECM/PCM with the HDS.
18. Do the ECM/PCM idle learn procedure (see «ECM/PCM IDLE LEARN PROCEDURE»(ref-219374-S42320443812006021400000) ).
19. Check for Temporary DTCs or DTCs with the HDS. Are any Temporary DTCs or DTCs indicated? YES - If DTC P1157 is indicated, check for poor connections or loose terminals at the A/F sensor (Sensor 1) and the ECM/PCM, then go to step 1 . If the connector and terminal fits are OK, go to step 21 . If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting. NO - Go to step 20.
20. Monitor the OBD STATUS for DTC P1157 in the DTCs MENU with the HDS. Does the screen indicate PASSED? YES - Troubleshooting is complete. NO - If the screen indicates FAILED, check for poor connections or loose terminals at the A/F sensor (Sensor 1) and the ECM/PCM, then go to step 1 . If the screen indicates NOT COMPLETED, go to step 18 and recheck.
21. Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM (see «ECM/PCM UPDATING AND SUBSTITUTION FOR TESTING»(ref-219370-S15199960282006021400000) ).
22. Check for Temporary DTCs or DTCs with the HDS. Is DTC P1157 indicated? YES - Go to step 20 and recheck. NO - If the ECM/PCM was updated, troubleshooting is complete. If the ECM/PCM was substituted, replace the original ECM/PCM (see «ECM/PCM REPLACEMENT»(ref-219371-S37179676622006021400000) ).