

Terminal voltage check with a low battery voltage will lead to erroneous diagnosis.

Otherwise, accurate measurements may not be obtained and personal injury may result.
Electrical circuit inspection procedure
While there are various methods for electrical circuit inspection, described here is a general method to check for open and short circuit using an ohmmeter and a voltmeter.
Ecm / various sensors
Open circuit checkTp sensor removal and installation
Refer to “throttle body disassembly and assembly” in section 1d .
Removal
Remove the throttle body. Refer to “throttle body
removal and installation” in section 1d (page 1d-
10).
Remove the tp sensor (1) with the special tool.
Special tool
: 09930–11950 (torx wrench (5 mm))
...
DTC “c41” (p2505): ecm power input signal
malfunction
Detected condition and possible cause
Detected condition
Possible cause
C41/P2505
No voltage is applied to the ecm.
Lead wire/coupler connection of ecm terminal to fuel
fuse.
Fuel fuse.
Wiring diagram
Troubleshooting
C ...
DTC “c93” (p1769): steering damper
solenoid valve circuit malfunction
Detected condition and possible cause
Detected condition
Possible cause
C93
Steering damper control current does not flow to
the solenoid valve. With ig turned on, ecm
detects a failure of internal circuit element.
Solenoid current does not converge to the ...