TROUBLESHOOTING
K2–199
K2
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NO.23 TRANSAXLE OVERHEATS
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Diagnostic procedure
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NO.24 ENGINE STALLS WHEN SHIFTED TO D RANGE, OR IN R POSITION
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2 • Do following symptoms concurrently occur?
— Engine flares up or slips during
acceleration
— Engine flares up or slips when shifting
Yes Go to symptom troubleshooting No.14 “Engine flares up or
slips when upshifting or downshifting” or No.15 “Engine
flares up or slips when accelerating vehicle”.
No Go to next step.
3 • Verify test results.
— If okay, return to diagnostic index to service any additional symptoms.
— If malfunction remains, inspect related Service Informations and perform repair or diagnosis.
— If vehicle repaired, troubleshooting completed.
— If vehicle not repaired or additional diagnostic information not available, replace TCM.
STEP INSPECTION ACTION
23 Transaxle Overheat
DESCRIPTION
• Burnt smell emitted from transaxle.
• Smoke emitted from transaxle.
POSSIBLE
CAUSE
• Malfunction is restricted to hindrance of coolant at oil cooler. In addition, overheating of transaxle may
be caused by a malfunction of TFT sensor.
— Line pressure low
• ATF level low
• Incorrect throttle position signal
• Misadjustment of throttle cable
— Oil cooler malfunction (Foreign material mixed in with ATF)
— TFT sensor malfunction
— Excessive amount of ATF
Note
• Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic
and Automatic Transaxle Basic Inspection are conducted.
STEP INSPECTION ACTION
1 • Is line pressure okay?
(See K2–72 Line Pressure Test.)
Yes Go to next step.
No Repair or replace any defective parts according to
inspection results.
2 • Is stall speed okay?
(See K2–74 Stall Speed Test.)
Yes Go to next step.
No Repair or replace any defective parts according to
inspection results.
3 • Inspect TFT sensor and related harness:
vibration, intermittent open/short circuit
• Is it okay?
Yes Go to next step.
No Repair or replace part if necessary.
4 • Inspect pressure control solenoid circuit.
• Is it okay?
Yes Go to next step.
No • Inspect for pressure control solenoid mechanical stuck.
(See K2–88 SOLENOID VALVE INSPECTION.)
5 • Inspect for bend, damage, corrosion or kinks
of oil cooler pipes.
• Are oil cooler pipes okay?
Yes • Overhaul control valve body and repair or replace any
defective parts.
(See ATX Workshop Manual.)
• If problem remains, replace or overhaul transaxle and
repair or replace any defective parts.
(See ATX Workshop Manual.)
No Replace any defective parts.
6 • Verify test results.
— If okay, return to diagnostic index to service any additional symptoms.
— If malfunction remains, inspect related Service Informations and perform repair or diagnosis.
— If vehicle repaired, troubleshooting completed.
— If vehicle not repaired or additional diagnostic information not available, replace TCM.
24 Engine stalls when shifted to D range, or in R position
DESCRIPTION • Engine stalls when shifting from N or P position to D range or R position at idle.
POSSIBLE
CAUSE
• Malfunction is on the engine control side (e.g. IAC system). Otherwise, malfunction is in input/turbine
speed sensor (engine sometimes starts) or TCC piston circuit (engine always stalls).
• Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and
Automatic Transaxle Basic Inspection are conducted.
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