Gearbox removal & installation: Toyota Yaris 1.0 C551A (1KR-FE)

🧭 Before you start

Fits: platform codes 1.0, 12V, VVT-I

• Opens: gearbox oil
• Renewed: gasket refit the drain plug

Don't miss

• Ensure the transmission is in neutral
• Do not start the engine

🔧 Engine codes this applies to

📐 21 workshop diagrams for 1KR-FE

Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.

📋 Procedure

Preparation and removal

1. Note: Ensure the transmission is in neutral
2. Connect the two terminals marked in the picture
3. The ignition is turned off
4. Note: Ensure the transmission is in neutral
5. Connect the two terminals marked in the picture

6. Use the special tool
7. Wait for 10 seconds
8. Turn the ignition on
9. Note: Do not start the engine
10. Within 3 seconds
11. Press the brake pedal 7 times
12. An audible signal will sound twice
13. An audible signal will sound twice
14. Cycle through the gears
15. Cycle through the gears
16. Press and release the brake pedal
17. Release the brake pedal
18. Press and release the brake pedal
19. An audible signal will sound twice
20. An audible signal will sound 3 times
21. Press the brake pedal 3 times
22. Press the brake pedal 3 times
23. Turn the ignition off
24. Wait for 10 seconds
25. Wait for 10 seconds
26. Gearbox mounting bolts:
27. Engine support:
28. After turning the ignition off:
29. Wait for 15 seconds
30. Engine support bracket:
31. Bolts, lower cross member:
32. Engine support (bolt):
33. Stabiliser link nuts
34. Lower arm ball joint:
35. Wheel speed sensor:
36. Disconnect the steering column
37. Remove the front wheels
38. Remove the engine lower covers
39. Remove the filler plug
40. Remove the drain plug
41. Drain the gearbox oil
42. Remove the bonnet
43. Remove the wiper arms and the wiper mechanism cover panel
44. Remove the water drain panel
45. Disconnect the windscreen washer hose
46. Remove the wiper motor
47. Remove the cover
48. Disconnect the wiring loom and move it aside
49. Remove the panel
50. Remove the battery
51. Remove the battery box
52. Remove the battery box support
53. Disconnect the electrical connector
54. If necessary:
55. Remove the hydraulic control unit
56. Disconnect the wiring
57. Disconnect the gearbox wiring
58. Disconnect the reversing light switch
59. Disconnect the gear-shift control connectors
60. Disconnect the starter motor wiring
61. Wiring loom:
62. Remove the drive shaft nuts
63. Use the special tool
64. Remove the bracket
65. Filler plug
66. Use the special tool
67. Disconnect the track rod ends
68. Use the special tool
69. Disconnect the stabiliser link(s)
70. Follow the procedure:
71. Disconnect the drive shafts from the wheel bearing housings
72. Note: At both sides of the vehicle
73. Connect the two terminals marked in the picture
74. Disconnect the right-hand drive shaft from the gearbox
75. Wait for 10 seconds
76. Attach the lifting eyes to the cylinder head
77. Note: Do not start the engine
78. Use a hoist to support the engine
79. Press the brake pedal 7 times
80. An audible signal will sound twice
81. Remove the front cross member
82. Remove the engine support bracket
83. Release the brake pedal
84. Remove the engine support
85. An audible signal will sound 3 times
86. Remove the engine support bracket
87. Remove the engine/gearbox attaching bolts
88. An audible signal will sound twice
89. Turn the ignition off
90. Wait for 10 seconds
91. The procedure is complete
92. Remove the special tool
93. After turning the ignition off:
94. Wait for 15 seconds
95. If necessary:
96. Repeat the procedure

Installation and checks

97. Renew the gasket
98. Refit the drain plug
99. If necessary:
100. Initialise the transmission
101. Follow the procedure:
102. The ignition is turned off
103. Note: Ensure the transmission is in neutral
104. Connect the two terminals marked in the picture
105. Use the special tool
106. Wait for 10 seconds
107. Turn the ignition on
108. Note: Do not start the engine
109. Within 3 seconds
110. Press the brake pedal 7 times
111. An audible signal will sound twice
112. Press and hold the brake pedal
113. Cycle through the gears
114. Release the brake pedal
115. Press and release the brake pedal
116. An audible signal will sound 4 times
117. Within 2 seconds
118. Press the brake pedal 3 times
119. An audible signal will sound twice
120. Turn the ignition off
121. Wait for 10 seconds
122. The procedure is complete
123. Remove the special tool
124. After turning the ignition off:
125. Wait for 15 seconds
126. If necessary:
127. Repeat the procedure
128. Follow the procedure:
129. Move the gear lever to position 'N'
130. Turn the ignition off
131. Turn the ignition on
132. Wait for 40 seconds
133. Turn the ignition off
134. Wait for 20 seconds
135. Turn the ignition on
136. Note: Do not start the engine
137. Note: Ensure the transmission is in neutral
138. Press and hold the brake pedal
139. Start the engine
140. If the gear indicator flashes:
141. Wait for 10 seconds
142. If 'N' is displayed on the gear indicator:
143. The procedure is complete
144. Manual synchronisation
145. Drive the vehicle
146. Mode selection
147. Vehicle speed (km/h /mph)
148. When changing up gears
149. Engage second gear
150. Vehicle speed (km/h /mph)

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