P1552, P1553 - Cooling Fan Relay
P1552, P1553 - Cooling Fan Relay - Fault - DR5; DS5; HF8; HG8; HJ8; HK8; HL8; LG1; LGX; LJ2; LK2; LL1
Fault Code | Possible cause | Action |
|---|---|---|
P1552 | Cooling fan relay short circuit to ground or open circuit | View and note diagnostic software 'sensor' data. Ensure fan relay connector is secure. Disconnect engine ECM and proceed to pinpoint test 1: |
P1553 | Cooling fan relay short circuit to battery positive or over temp | Disconnect engine ECM and fan relay and proceed to pinpoint test 4: |
Subheading - Pinpoint Test
Pinpoint Tests
P1552, P1553 - Cooling Fan Relay - Pinpoint Test - HF8; HG8; HJ8; HK8; HL8; LG1; LGX; LJ2; LK2
Test | Result | Action | |
|---|---|---|---|
1 | Check cable and terminal integrity: - Engine ECM pin A13 - Cooling fan relay pin 1 - Cooling fan relay pin 2 | OK | Disconnect fan relay and proceed to test 2 |
Faulty | Rectify fault, proceed to test 5 | ||
2 | Check cable for short circuit: - Engine ECM pin A13 to ground | OK | Proceed to test 3 |
Short circuit | Locate and rectify wiring fault, proceed to test 5 | ||
3 | Check cable continuity: - Engine ECM pin A13 to fan relay pin 1 - EMS relay pin 5 fan relay pin 2 | OK | Proceed to test 4 |
Open circuit | Locate and rectify wiring fault, proceed to test 5 | ||
4 | Check cable for short circuit: - Engine ECM pin A13 to Engine ECM pin A08 | OK | Proceed to test 5 |
Short circuit | Locate and rectify wiring fault, proceed to test 5 | ||
5 | Reconnect harness, clear fault code and run diagnostic software function test to visually verify operation of cooling fan. | OK | Action complete - quit test |
Fault still present | Contact Triumph service | ||
Subheading - Circuit Diagram
Circuit Diagram
P1552, P1553 - Cooling Fan Relay - Circuit Diagram - LG1; LGX
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