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7B-16 AUTOMATIC TRANSMISSION (4 A/T)
2. DIAGNOSTIC TROUBLE CODE (DTC) CHECK, RECORD AND CLEARANCE
To check DTC, refer to "DTC CHECK" in this section. When a DTC exists, it means existence of a malfunction in
the system represented by that code but whether it still exists (current) or it occurred in the past and has gone
(history) is unknown. To know it, clear this DTC once (Refer to "DTC CLEARANCE" in this section.), perform
test drive and/or "TROUBLE SYMPTOM CONFIRMATION" in this section and then check DTC again as
described in "DTC CHECK". Attempt to diagnose the trouble based on the DTC recorded in this step only or fail-
ure to clear the DTC in this step may mislead the diagnosis or make diagnosing difficult. Even after checking the
DTC with the SUZUKI scan tool, diagnosis should be performed according to this flow chart to check TCM for
proper self-diagnosis function.
3 and 4. VISUAL INSPECTION
As a preliminary step, perform visual check of the following items that support proper function of the automatic
transmission.
• Engine oil ----- level, leakage
• Engine coolant ----- level, leakage
• A/T fluid ----- level, leakage, color
• Battery ----- fluid level, corrosion of terminal
• A/T fluid hoses ----- disconnection, looseness, deterioration
• Connectors of electric wire harness ----- disconnection, friction
• Fuses ----- burning
• Parts ----- installation, bolt ----- looseness
• Parts ----- deformation
• Other parts that can be checked visually
Also add following items at engine start.
• Indicator, warning lights in combination meter ----- ON
(indicating abnormality in system) or OFF
• Other parts that can be checked visually
5.TROUBLE SYMPTOM CONFIRMATION
Check if what the customer claimed in "CUSTOMER COMPLAINT ANALYSIS" is actually found in the vehicle
and if that symptom is found, whether it is identified as a failure. (This step should be shared with the customer
if possible.)
When the symptom is not actually found, possibility is :
• The symptom occurs under certain conditions.
----- Retry with the vehicle under different conditions.
• The trouble occurred only temporarily and normal operation has been restored.
----- Perform "DTC CHECK" and if the diagnostic trouble code is indicated, inspect according to the flow
table for that DTC.
6 and 7. RECHECKING AND RECORD OF DTC
Refer to "DTC CHECK" in this section.
INSPECTION ITEM
REFERRING SECTION
Section 0B
Section 0B
Section 0B
Section 8
Section 8
Section 8C
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