L0008 - Invalid Key: Key Authentication Unsuccessful
Fault Code | Possible cause | Action |
---|---|---|
L0008 or Alarm/immobiliser warning indicator light is on when the ignition switch is at the ON position (only visible on motorcycles without the accessory alarm fitted) | Invalid key: Key authentication unsuccessful | Check that the key has been registered with the immobiliser control module, if it is a new key or an additional key. Check that there are no additional keys with a transponder chip fitted close to the ignition key and proceed to pinpoint test 1: |
Subheading - Pinpoint Test
Pinpoint Tests
Test | Result | Action | |
---|---|---|---|
1 | If available, try to start the motorcycle with the second registered key: | OK | Transponder chip in the key not functioning correctly. Register a new key using the Triumph Diagnostic Tool then proceed to test 5 |
Faulty | Proceed to test 2 | ||
2 | Check the condition of cable, connector housing and terminals for the following: - Ignition switch - Immobiliser control module | OK | Disconnect the ignition switch, proceed to test 3 |
Faulty | Rectify fault, proceed to test 5 | ||
3 | Check antenna coil resistance: - Ignition switch pin 2 to ignition switch pin 7 | 7 Ohms to 13 Ohms | Proceed to test 4 |
Faulty | Replace the ignition switch, register new keys and proceed to test 5 | ||
4 | Check cable continuity: - Ignition switch pin 2 to Immobiliser control module pin 5 - Ignition switch pin 7 to Immobiliser control module pin 10 | OK | Proceed to test 4 |
Faulty | Rectify fault, proceed to test 5 | ||
5 | Reconnect harness, clear fault code and run engine. | OK | Action complete - quit test |
Fault still present | Contact Triumph service |
Subheading - Circuit Diagram
Circuit Diagram
L0008 - Invalid Key: Key Authentication Unsuccessful - Circuit Diagram - LG1; LGX
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