Loading ...
Loading ...
Loading ...
3 CHECK VACUUM CUT VALVE BYPASS VALUE POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect vacuum cut valve bypass valve harness connector.
SEF278X
3. Turn ignition switch “ON”.
4. Check voltage between vacuum cut valve bypass valve terminal 1 and ground with CONSULT-II or tester.
SEF356X
OK or NG
OK © GO TO 5.
NG © GO TO 4.
4 DETECT MALFUNCTIONING PART
Check the following.
I Harness connectors M5, B1
I Fuse block (J/B) connector M19
I 15A fuse
I Harness for open or short between vacuum cut valve bypass valve and fuse
© Repair harness or connectors.
5 CHECK VACUUM CUT VALVE BYPASS VALVE OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 28 and vacuum cut valve bypass valve terminal 2. Refer to Wiring
Diagram.
Continuity should exist.
4. Also check harness for short to ground and short to power.
OK or NG
OK © GO TO 7.
NG © GO TO 6.
DTC P1490 VACUUM CUT VALVE BYPASS VALVE
Diagnostic Procedure (Cont’d)
EC-626
Loading ...
Loading ...
Loading ...