ad2540w5000a

Torque converter clutch (TCC) diagnosis troubleshooting

Type ad · topic 25.40 · version 0101 · 2003-06-10

Applies to: ENGINE 441.9, 445.9, 446.9 in MODEL 625.1 with CODE (G02) Torque converter clutch (TCC) ENGINE 446.9 in MODEL 625.2 with CODE (G02) Torque converter clutch (TCC) ENGINE 402.9, 440.9, 445.9, 446.9 in MODEL 655 with CODE (G02) Torque converter clutch (TCC) ENGINE 440.9, 441.9, 442.9, 445.9, 446.9 in MODEL 656 with CODE (G02) Torque converter clutch (TCC) ENGINE 442.9, 446.9 in MODEL 657 with CODE (G02) Torque converter clutch (TCC) ENGINE 440.9, 442.9, 446.9 in MODEL 658 with CODE (G02) Torque conver

Where it sits

Function group 2 Chassis › 25 Clutch › 25.40 Torque converter clutch (WSK) — Series 440 (models 9**) · Series 441 (models 9**) · Series 442 (models 9**) · Series 625 (models 1**, 2**) · Series 655 · Series 656 · Series 657 · Series 658 · Series 659

Also applies to engines/gearboxes: 401 9**, 402 9**, 445 9**, 446 9**

AD25.40-W-5000A

Torque converter clutch (TCC) diagnosis troubleshooting

22.9.97

ENGINE 441.9, 445.9, 446.9 in MODEL 625.1 with CODE (G02) Torque converter clutch (TCC)

ENGINE 446.9 in MODEL 625.2 with CODE (G02) Torque converter clutch (TCC)

ENGINE 402.9, 440.9, 445.9, 446.9 in MODEL 655 with CODE (G02) Torque converter clutch (TCC)

ENGINE 440.9, 441.9, 442.9, 445.9, 446.9 in MODEL 656 with CODE (G02) Torque converter clutch (TCC)

ENGINE 442.9, 446.9 in MODEL 657 with CODE (G02) Torque converter clutch (TCC)

ENGINE 440.9, 442.9, 446.9 in MODEL 658 with CODE (G02) Torque converter clutch (TCC)

ENGINE 401.9, 440.9, 442.9, 445.9, 446.9 in MODEL 659 with CODE (G02) Torque converter clutch (TCC)

Danger!

Risk of accident due to vehicle starting off automatically when engine is running. Risk of injury due to being trapped and burns when intervening during the starting operation or when the engine is running

Secure vehicle to prevent it from starting off automatically.

Wear close-fitting, tight clothing.

Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

Torque converter clutch (TCC) diagnosis, basic knowledge

AD25.40-W-2000A

On-board voltage 22.5-29.5 V

Acid density > 1.16

If there are complaints about performance, check stall speed

AD25.40-W-3000A

Troubleshooting

Complaint

Possible cause

Note

Remedy

TCC malfunction indicator lamp (H11) does not come on when the ignition is switched on

AD25.40-W-6000-01A

Torque converter lockup clutch does not engage or does not engage correctly

AD25.40-W-6000-10A

Kick-down switch (S3) inoperative or shift point incorrect

AD25.40-W-6000-08A

Throttle lock-out inoperative

Neutral position switch on transmission (S17)

Engine management solenoid valve (Y19)

Check green indicator lamp in M-module

AD25.40-W-3000A

AD25.40-W-6000-11A

Control module shift points defective

AD25.40-W-6000-18A

Referenced documents