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Perform the mechanical system test preparation. (See MECHANICAL SYSTEM TEST PREPARATION .)
Apply the parking brake firmly, and set the wheel blocks for both the front and rear wheels.
Start the engine.
Measure the time lag from the N position to the D position.
1. Shift the selector lever from the N position to the D position with the brake pedal depressed.
2. Measure the time until the shift shock is felt firmly after shifting.
Measure the time lag from the N position to the R position using the same procedure.
- If there is any malfunction, one of the following causes may have occurred:

POSSIBLE CAUSE

Condition		Possible cause
N to D selected	Longer than specification	Line pressure is low Low clutch slippage ATF leakage from low clutch hydraulic circuit ATF leakage from low and reverse brake hydraulic circuit Shift solenoid No. 1 operation malfunction Shift solenoid No. 4 operation malfunction
N to D selected	Shorter than specification	Line pressure is high N-D accumulator operation malfunction Shift solenoid No. 1 operation malfunction Shift solenoid No. 4 operation malfunction
N to R selected	Longer than specification	Line pressure is low Low and Reverse brake slippage R-3-5 brake slippage ATF leakage from R-3-5 brake hydraulic circuit ATF leakage from low and reverse brake hydraulic circuit Shift solenoid No. 3 operation malfunction Shift solenoid No. 4 operation malfunction
N to R selected	Shorter than specification	Line pressure is high N-R accumulator operation malfunction Shift solenoid No. 3 operation malfunction Shift solenoid No. 4 operation malfunction

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Time Lag Test: Notes