NO.22 NO ENGINE BRAKING IN 1GR POSITION OF M RANGE [JA5AX-EL]


22	No engine braking in 1GR position of M range
DESCRIPTION	• Engine speed drops to idle but vehicle coasts when accelerator pedal released during cruising at medium to high speeds. • Engine speed drops to idle but vehicle coasts when accelerator pedal released when in M range (1GR) at low vehicle speed.
POSSIBLE CAUSE	• Clutch slipped, burned (Reduction brake) - Line pressure low • Malfunction of VSS • Malfunction of input/turbine speed sensor • Malfunction of sensor ground • Malfunction of control valve body - M range switch on not judged by TCM (short, or open circuit, poor operation) • Malfunction of M range switch signal Note • Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted.


STEP	INSPECTION		ACTION
1	• Inspect TR switch adjustment. • Does TR switch adjusted properly? • Select PNP PID. • Is PNP PID reading okay when selecting range?	Yes	Go to next step.
1		No	Adjust TR switch as necessary. (See TRANSAXLE RANGE (TR) SWITCH ADJUSTMENT [JA5AX-EL].) Inspect TR switch. Repair or replace any defective parts.
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".
2		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.

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