EHPS Similarly as the travelinglmaterial handling controllers, some components can be inspected after removal from the vehicle while others cannot unless they are installed on the vehicle. The EHPS board is to be inspected as installed on the vehicle because they must be applied with the battery voltage. The inspection method for the PS controller ASSY explained here is mainly for the state after removal from the vehicle. 1. TMPS (transistor for PS)
(1) Inspection method Disconnect the TMPS wiring. Portion to be inspected
Measurement terminals C2E1-E2
TMPS
G2-E2 C2E1-C1
-
Standard
C2E1 (-) probe - E2 (+) probe
-52
C2E1 (+) probe - E2 (-) probe
Continuity shall exist.
G2 (-) probe- E2 (+) probe
..Q
G2 (+) probe - E2 (-) probe
mi2
C2E1 (-) - C1 (+)
Continuity shall exist.
C2E1 (+) - C1 (-)
WQ
Tester range
Q Xl k
Caution: When shifting to check C2E1-E2 from G2-E2 short connect G2-E2 to avoid the possibility of continuity on both directions. Never touch to G2 terminal with a naked hand. Because static electricity may damage the transistor.