|
|
TROUBLE DIAGNOSIS FOR SYMPTOMS AT-207 D E F G H I J K L M A B AT A/T Does Not Shift: D 4
→ D 5 NCS001QA SYMPTOM: ● The vehicle does not shift-up from the D 4 to D 5 gear at the specified speed. ● The vehicle does not shift-up from the D 4 to D 5 gear unless A/T is warmed up. DIAGNOSTIC PROCEDURE 1. CONFIRM THE SYMPTOM Check if vehicle creep forward in “D” position and vehicle can be started from D 1. OK or NG OK >> GO TO 2. NG AT-197, "Vehicle Does Not Creep Forward in “D” Position" . 2. CHECK SELF-DIAGNOSTIC RESULTS Perform self-diagnosis. Refer to AT-92, "SELF-DIAGNOSTIC RESULT MODE" Is any malfunction detected by self-diagnostic results? YES >> Check malfunctioning system. Refer to AT-92, "SELF-DIAGNOSTIC RESULT MODE" "Judgement Self-diagnosis Code" . NO >> GO TO 3. 3. CHECK A/T FLUID LEVEL Check A/T fluid level. Refer to OK or NG OK >> GO TO 4. NG >> Refill ATF. 4. CHECK LINE PRESSURE Check line pressure at the engine stall point. Refer to OK or NG OK >> GO TO 7. NG - 1 >> Line pressure high: GO TO 5. 5. DETECT MALFUNCTIONING ITEM 1. Check control valve with TCM. Refer to AT-236, "Control Valve With TCM and A/T Fluid Temperature Sen- 2. Disassemble A/T. Refer to . 3. Check the following. – Oil pump assembly. Refer to . OK or NG OK >> GO TO 7. NG >> Repair or replace damaged parts. |