P1650 - CAN Fault - Lost communication With Immobiliser ECM
P1650 - CAN Fault - Lost communication With Immobiliser ECM - Fault - CG7; CM7; CM8; CN7; CR7; CR8; CS7; CS8; CT7; CX7; DR5; DS5; HF8; HG8; HJ8; HK8; HL8; LG1; LGX; LJ2; LK2; LL1; PB1; PJ1
Fault Code | Possible cause | Action |
|---|---|---|
P1650 | Lost communication with Immobiliser ECM | View and note 'freeze-frame' data if available. Make sure the immobiliser control module connector is secure. Make sure the ignition switch is turned to the OFF position. Proceed to pinpoint test 1: |
Subheading - Pinpoint Test
Pinpoint Tests
P1650 - CAN Fault - Lost communication With Immobiliser ECM - Pinpoint Test - LG1; LGX
Test | Result | Action | |
|---|---|---|---|
1 | Check cable and terminal integrity: - Engine ECM pin C25 - Engine ECM pin C24 - Immobiliser pin 1 - Immobiliser pin 2 - Immobiliser pin 6 - Immobiliser pin 7 - Immobiliser pin 8 | OK | Disconnect ECM and proceed to test 2 |
Faulty | Rectify fault, proceed to test 6 | ||
2 | Check cable for short circuit: - Engine ECM pin C25 to ground - Engine ECM pin C24 to ground | OK | Disconnect immobiliser, ignition switch and proceed to test 3 |
Faulty | Locate and rectify wiring fault, proceed to test 6 | ||
3 | Check fuse box fuse 6 integrity. | OK | Proceed to test 5 |
Faulty | Proceed to test 4 | ||
4 | Check cable for short circuit: - Immobiliser pin 2 to ground - Immobiliser pin 8 to ground | OK | Proceed to test 5 |
Faulty | Locate and rectify wiring fault, replace relevant fuse, proceed to test 6 | ||
5 | Check cable continuity: - Engine ECM pin C25 to immobiliser pin 6 - Engine ECM pin C24 to Immobiliser pin 1 - Immobiliser pin 7 to ground - Fuse box fuse 6 to immobiliser pin 2 | OK | Proceed to test 6 |
Fault still present | Locate and rectify wiring fault, proceed to test 6 | ||
6 | Reconnect harness, clear fault code and run engine. | OK | Action complete - quit test |
Fault still present | Contact Triumph service | ||
Subheading - Circuit Diagram
Circuit Diagram
P1650 - CAN Fault - Lost communication With Immobiliser ECM - Circuit Diagram - LG1; LGX
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