This information is based on Japanese-market vehicles (JDM specification). Parts and symptoms may differ in your market.
Mechanic-reviewed · nationwide repair cases
That symptom — what to suspect first.
Pick your model and symptom to see the order to check things in.
e.g. Check engine light onStalling / stops while drivingCoolant leak / coolant lossNo acceleration / lack of power
Mechanic-reviewedReviewed by mechanics at a certified repair shop
16 casesPer model: what to suspect first, by symptom
Confirm by inspectionThese pages are a guide. Only a workshop inspection confirms the cause.
Browse by symptomAll symptoms
Start from the symptom to see what to suspect and how to tell.
Check engine light on1 cases・17 repair cases›Stalling / stops while driving1 cases・14 repair cases›Coolant leak / coolant loss1 cases・13 repair cases›No acceleration / lack of power1 cases・10 repair cases›Oil leak / seepage1 cases・8 repair cases›Battery warning light on1 cases・7 repair cases›Air-con not cold1 cases・7 repair cases›DPF warning light / regeneration won't finish1 cases・7 repair cases›Paint peeling / flaking1 cases・6 repair cases›Broken or detached parts1 cases・6 repair cases›
Featured case
HiAce Van (1KD): Check engine light on
Suspect the injectors first (they atomise the fuel), then the supply pump (high-pressure fuel pump). On a diesel HiAce, when the check engine light comes on, faults on the fuel delivery and injection side come top. Also on the list: a clogged DPF (diesel particulate filter), a dirty fuel filter and, rarely, worn piston rings.