Precautions
Diagnostic information and proceduresDTC “c28” (p1655): secondary throttle
valve actuator (stva) malfunction
Detected condition and possible cause
Detected condition
Possible cause
The operation voltage does not reach the stva.
Ecm does not receive communication signal from the
stva. Stva can not operate properly or its motor locked
Stva malfunction.
...
Battery
Battery connection in reverse polarity is strictly
prohibited. Such a wrong connection will damage the
components of the fi system instantly when reverse
power is applied.
Removing any battery terminal of a running engine is
strictly prohibited. The moment such removal is made,
...
Front brake caliper parts inspection
Refer to “front brake caliper disassembly and assembly” .
Brake caliper cylinder
Inspect the brake caliper cylinder wall for nicks,
scratches or other damage. If any damage is found,
replace the caliper with a new one.
Brake caliper piston
Inspect the surface of brake caliper pistons for a ...