DTC Confirmation Procedure

Perform "PROCEDURE FOR MALFUNCTION A" first. If the 1st trip DTC cannot be confirmed, perform "PROCEDURE FOR MALFUNCTION B".
If the 1st trip DTC is not confirmed on "PROCEDURE FOR MALFUNCTION B", perform "PROCEDURE FOR MALFUNCTION C".

NOTE:
If "DTC Confirmation Procedure" has been previously conducted, always turn ignition switch "OFF" and wait at least 5 seconds before conducting the next test.





PROCEDURE FOR MALFUNCTION A

With CONSULT
(1) Turn ignition switch "ON".
(2) Select "DATA MONITOR" mode with CONSULT.
(3) Wait at least 6 seconds.

With GST
(1) Turn ignition switch "ON" and wait at least 6 seconds.
(2) Select "MODE 7" with GST.

No Tools
(1) Turn ignition switch "ON" and wait at least 6 seconds.
(2) Turn ignition switch "OFF", wait at least 5 seconds and then turn "ON".
(3) Perform "Diagnostic Test Mode II (Self-diagnostic results)" with ECM.





PROCEDURE FOR MALFUNCTION B

With CONSULT
(1) Start engine and warm it up to normal operating temperature.
(2) Turn ignition switch "OFF" and wait at least 5 seconds.
(3) Turn ignition switch "ON" and select "DATA MONITOR" mode with CONSULT.
(4) Start engine and let it idle.
(5) Wait at least 15 seconds.

With GST
(1) Start engine and warm it up to normal operating temperature.
(2) Turn ignition switch "OFF" and wait at least 5 seconds.
(3) Start engine.
(4)Let engine idle and wait at least 15 seconds.
(5) Select "MODE 7" with GST.

No Tools
(1) Start engine and warm it up to normal operating temperature.
(2) Turn ignition switch "OFF" and wait at least 5 seconds.
(3) Start engine.
(4) Let engine idle and wait at least 15 seconds.
(5) Turn ignition switch "OFF", wait at least 5 seconds and then turn "ON".
(6) Perform "Diagnostic Test Mode (Self-diagnostic results)" with ECM.








PROCEDURE FOR MALFUNCTION C

CAUTION: Always drive vehicle at a safe speed.

With CONSULT
(1) Turn ignition switch "ON".
(2) Select "DATA MONITOR" mode with CONSULT.
The voltage of "ABSOL PRECISE" should be more than 1.74 [V].
If the check result is NG, go to "Diagnostic Procedure".
If the check result is OK, go to following step.
(3) Start engine and warm it up to normal operating temperature.
(4) Turn ignition switch "OFF" and wait at least 5 seconds.
(5) Start engine and let it idle for at least 13 seconds.
(6) Select "DATA MONITOR" mode with CONSULT.
(7) Drive the vehicle at least 3 consecutive seconds under the following conditions,
CMPS.RPM (REF): 3,000 - 4,800 rpm
B/FUEL SCHDL: More than 4.6 ms
Selector lever: Suitable position
Driving pattern:
Driving vehicle uphill (Increased engine load) will help maintain the driving conditions required for this test.





Overall Function Check
Use this procedure to check the overall function of the absolute pressure sensor circuit. During this check, a 1st trip DTC might not be confirmed.

With GST
(1) Turn ignition switch "ON".
(2) Select absolute pressure sensor signal in "MODE 1" with GST.
(3) Make sure that the signal is more than 46 kPa (0.47 kg/sq.cm, 6.7 psi).

No Tools
(1) Turn ignition switch "ON".
(2) Make sure that the voltage between ECM terminal 45 (Absolute pressure sensor signal) and ground is more than 1.74 [V].