Antitheft - ELV (Steering Column Lock) Does Not Release
SI M61 08 07General Electrical Systems
September 2011
Technical Service
This Service Information bulletin supersedes SI M61 08 07 dated October 2007.
[NEW] designates changes to this revision
SUBJECT
ELV Does Not Release
MODEL
R56 (Cooper, Cooper S) vehicles produced up to 3/2007
SITUATION
The customer complains of a no-crank, no-start situation. The condition may be intermittent. The ELV (Electric Steering Lock) warning is shown in the instrument cluster.
CAUSE
Cause 1: The steering column is held against the steering lock because of torque from the steering gear. In such cases, a yellow check control warning (CC ID# 187) is shown in the instrument cluster but no faults are stored.
Cause 2: Communication fault in the CAS (Car Access System) and ELV system network and/or battery low. The problem may cause the ELV warning to be displayed in yellow or red.
CORRECTION
Cause 1: Relieve the torque from the steering wheel and repeat the starting operation. No repairs are necessary (refer to the Owner's Manual for more information).
Cause 2: Before connecting to the Diagnosis System, duplicate the "no-crank" complaint.
For Comfort Access-equipped vehicles, rule out specific Comfort Access-related issues by inserting the remote key in the key holder.
[NEW] Be sure to use the latest version of ISTA (Integrated Service Technical Application).
[NEW] Carry out a vehicle test - do not delete the fault memory. Follow the relevant ISTA test plans through to completion.
[NEW] IF KL-15 cannot be switched on, start diagnostics by selecting the vehicle manually. In some cases, the OBD connector would need to be jumped between pin 1 and 16 in order to get the battery voltage pop-up message to disappear. Then follow the diagnostics path: Drive / Engine start / Comfort start / button to get into the test plan B6100_87CAS.
Additional troubleshooting tips:
For basic troubleshooting, the system requires the following conditions for the starter to turn (engine crank):
1. There must be a valid key.
2. There must be no road speed.
3. The ELV must be unlocked (and the "unlocked and secured" telegram received by the CAS).
4. The ELV module must be de-energized by the CAS.
5. The start button must be pressed.
^ Check that the key holder locks the key in position, and that the steering lock unlocks (an audible "clunk" can be heard when the key is inserted).
^ Note 1: KL15 is not released unless the steering is unlocked, and the CAS has received the "unlocked" telegram.
^ Note 2: The ELV makes three attempts to unlock - a whirring sound can be heard at each attempt.
[NEW] In situations where the ELV is replaced and the engine now cranks and starts, but the yellow "steering lock" check control warning still shows in the instrument cluster, using ISTA, select Function Selection / Drive / Engine start / Comfort start / Button and run the test module. At the question, "Is a yellow ELV Check Control message displayed?" answer with "Yes". This clears the fault counter and a control unit reset takes place.
[NEW] This Service Information bulletin provides technical, diagnostic and/or repair process information only.