asieps_tobira_IM_US.book 296 ページ 2012年1月17日 火曜日 午後3時48分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
Step
1
CHECK HARNESS BETWEEN ECM AND
TUMBLE GENERATOR VALVE ASSEMBLY
CONNECTOR.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from the ECM.
3) Measure the voltage between ECM and
chassis ground.
Connector & terminal
(B137) No. 5 (+) — Chassis ground (–):
(B137) No. 4 (+) — Chassis ground (–):
Check
Is the voltage 5 V or more?
EN(STI)(diag)-296
Yes
No
Repair the short
Replace the tum-
circuit to power in
ble generator valve
the harness
assembly. <Ref. to
between ECM and
FU(H4DOTC)-43,
tumble generator
Tumble Generator
valve assembly.
Valve Actuator.>