NO.6 LOW MAXIMUM SPEED AND POOR ACCELERATION
id050300801100
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6
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Low maximum speed and poor acceleration
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DESCRIPTION
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• Vehicle acceleration is poor at start.
• Delayed acceleration when accelerator pedal is depressed while driving.
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POSSIBLE CAUSE
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• If the clutch is stuck or does not stay in 3GR, the malfunction is in engine circuit.
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Diagnostic procedure
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STEP |
INSPECTION |
ACTION |
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1
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With ignition switch at ON, does HOLD indicator light indication correspond to HOLD switch operation?
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Yes
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Go to next step.
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No
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Go to No.27 “HOLD INDICATOR LIGHT DOES NOT ILLUMINATE WHEN HOLD SWITCH IS TURNED ON.”. No.28 “HOLD INDICATOR LIGHT ILLUMINATES WHEN HOLD SWITCH IS NOT TURNED ON.”
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2
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Go to No.12 “Lack/loss of power”.
Does CIS system okay?
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Yes
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Go to next step.
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No
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Repair or replace any defective parts.
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3
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Disconnect solenoid connector.
Does vehicle operate as follows?
D, S ranges: 3GR (fixed)
L range: 1GR (fixed)
R position: Reverse
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Yes
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Go to next step.
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No
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Overhaul control valve body and repair or replace any defective parts.
If problem remains, overhaul transaxle and repair or replace any defective parts.
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4
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Drive vehicle in D, S, and L ranges except HOLD mode. Does vehicle start from stop in first gear?
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Yes
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Go to next step.
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No
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Check the value at the following PIDs using the M-MDS.
(See PCM INSPECTION [ZJ, ZY].)
• APP
• TP
• VSS
• TSS
• TR
Repair or replace any defective parts.
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5
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Check the value at the following PIDs using the M-MDS.
(See PCM INSPECTION [ZJ, ZY].)
• SSA/SS1
• SSB/SS2
• SSC/SS3
Are PID values okay?
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Yes
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Go to next step.
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No
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Check the value at the following PIDs using the M-MDS.
(See PCM INSPECTION [ZJ, ZY].)
• APP
• TP
• VSS
• TSS
Repair or replace any defective parts.
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6
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Perform the stall test.
(See MECHANICAL SYSTEM TEST.)
Is stall speed okay?
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Yes
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Reverify symptoms of malfunction.
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No
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Overhaul transaxle and repair or replace any defective parts.
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7
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• Verify test results.
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