Cooper S (R56) L4-1.6L Turbo (N14) (2009)
Wiring Harness: All Technical Service Bulletins
A/T - Harsh Shifts/Hard To Select 'D' Or 'R'
SI M 24 02 08
Automatic Transmission
July 2008
Technical Service
SUBJECT
R55, R56 with F21 Transmission - Various EGS Faults Caused by Wiring Harness Damage
MODEL
R55 (Clubman, Clubman S) with F21 ASIN 6-speed automatic transmission
R56 (Cooper, Cooper S) with F21 ASIN 6-speed automatic transmission
SITUATION
The customer may complain of the following:
^
It is difficult to engage the D or R gears from the Park position.
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Gear shifts are extremely harsh during driving.
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Intermittently, the transmission warning light ("gear indicator") may be displayed.
During the diagnosis, various combinations of the following fault codes may be stored in the EGS module:
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4E21, 4E22 - Electronic pressure control valve SLT
^
4E2C - Electronic pressure control valve SLU
^
4E35, 4E36 - Electronic pressure control valve SLC1
^
4E3F, 4E40 - Electronic pressure control valve SLC2
^
4E4A, 4E49 - Electronic pressure control valve SLC3
^
4E54 - Electronic pressure control valve SLB1.
CAUSE
Possibly the transmission wiring harness is damaged and is chafing against the transmission housing; or the A/C condenser pipe or an electronic pressure
valve fails intermittently.
SOLUTION
On a customer complaint basis, prior to executing the appropriate DIS Test Plan, visually inspect the transmission harness in the area close to the
transmission mount, and behind the A/C condenser pipe (on top of the gear box areas indicated by # 1).
If chafing is detected, the damaged part of the harness should be repaired and insulated, using a good quality adhesive tape (Wurth Black Cloth Friction
Tape, article number 1985 620, may be used for this procedure).
For more information on this product, please visit www.wurthusa.com or call 1-800-WURTHUSA.