C1661, C1662, C1663, C1664 - Power Source Voltage

C1661, C1662, C1663, C1664 - Power Source Voltage - Fault - CM8; CR8; CS8; DR5; DS5; HF8; HG8; HJ8; HK8; HL8; LG1; LGX; LJ2; LK2; LL1; PB1; PJ1; PJZ; PM1; PR1; PRC; PS1; PSC; PX1; PXC; PY1; PYC

Fault Code

Possible Cause

Action

C1661

Power source voltage too low

Make sure ABS ECM connector is secure

Disconnect ABS ECM connector and proceed to pinpoint test 1:

C1662

Power source voltage too high

C1663

Power source - short term under-voltage detected

C1664

Power source - long term Under-voltage detected

Subheading - Pinpoint Test

Pinpoint Tests

C1661, C1662, C1663, C1664 - Power Source Voltage - Pinpoint Test - LG1; LGX; LL1

Test

Result

Action

1

Check cable and terminal integrity:

- ABS ECM connector pin 7 and ground pin 10

OK

Proceed to test 2

Faulty

Rectify fault, proceed to test 5

2

Check the cable for continuity:

- ABS ECM connector pin 10 and ground

OK

Proceed to test 3

Faulty

Rectify wiring harness fault, proceed to test 5

3

Check battery voltage: With ignition 'ON', check the voltage between:

- ABS ECM connector pin 7 and ground pin 10

Voltage greater than 11 V

Proceed to test 4

Voltage less than 11 V

Locate and rectify fault, proceed to test 5

4

Check battery voltage: Reconnect ABS ECM connector and start the engine, check the voltage between:

- Battery positive (red) terminal and negative (black) terminal

Voltage between 11 V and 16 V

Proceed to test 5

Voltage greater than 16 V

Check the battery charging circuit. Locate and rectify fault, proceed to test 5

5

Clear fault code and test ABS to verify fault cleared.

OK

Action complete - quit test

Fault still present

Contact Triumph service

Subheading - Circuit Diagram

Circuit Diagram

C1661, C1662, C1663, C1664 - Power Source Voltage - Circuit Diagram - LG1; LGX

Solenoid Circuit LG1
  1. Fuse Box 2

  2. Fuse Box 1

  3. ABS Control Module

  4. Instruments