9-238
P1606, P1607
5. Defective intake air pressure sensor 2.
• Execute the diagnostic mode. (Code 04)
• When engine is stopped: Atmospheric pressure at the current altitude and weather conditions is in-
dicated.
• When engine is cranking: Make sure that the indication value changes.
6. Malfunction in ECU.
• Replace the ECU, and complete the service.
Refer to “THROTTLE BODIES” on page 7-5.
7. Delete the DTC and check that the MIL goes off.
• Confirm that the DTC has a condition of “Recovered” using the YDT, and then delete the DTC.
Is check result OK?
YES
→ Go to step 5.
NO
a. Reinstall or replace the sensor.
b. Turn the main switch to “ON”, and then check the condition of the DTC using the malfunction
mode of the YDT.
Is it in the “Recovered” condition?
YES
→ Go to step 7, and complete the service.
NO
→ Go to step 5.
At sea level
Approx. 101 kPa (757.6 mmHg, 29.8 inHg), ap-
prox. 3.64 V
1000 m (3300 ft) above sea level
Approx. 90 kPa (675.1 mmHg, 26.6 inHg), ap-
prox. 3.30 V
2000 m (6700 ft) above sea level
Approx. 80 kPa (600.0 mmHg, 23.6 inHg), ap-
prox. 3.00 V
3000 m (9800 ft) above sea level
Approx. 70 kPa (525.0 mmHg, 20.7 inHg), ap-
prox. 2.70 V
Is check result OK?
YES
→ Go to step 6.
NO
a. Replace the intake air pressure sensor 2.
Refer to “REPLACING THE ECU (Engine Control Unit)” on page 8-56.
b. Turn the main switch to “ON”, and then check the condition of the DTC using the malfunction
mode of the YDT.
Is it in the “Recovered” condition?
YES
→ Go to step 7, and complete the service.
NO
→ Go to step 6.
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