FUEL SYSTEM/ENGINE MANAGEMENT 9
FUEL PUMP RELAY
Fault Code
Possible cause
Action
P0230
Fuel pump relay system fault
Check if pump runs briefly when ignition is
switched on.
Ensure relay connector is secure and relay
is operational — renew if faulty.
Disconnect ECM and proceed to pinpoint
test 1:-
P1231
Open circuit, or short circuit to earth
P1232
Short circuit to battery+
Disconnect relay and proceed to pinpoint
test 4
Pinpoint Tests
Test
Result
Action
1
Check cable and terminal integrity:
—
ECM pin 80
OK
Disconnect relay and proceed to test 2
Faulty
Rectify fault, proceed to test 5
2
Check cable for short circuit:
—
ECM pin 80 to earth
OK Proceed to test 3
Short circuit
Locate and rectify wiring fault, proceed to
test 5
3
Check cable continuity:
—
ECM pin 80 to relay pin4
—
Relay pin 6 to alarm control unit
.
pinl
OK Proceed to test 4
Open circuit
Locate and rectify wiring fault, proceed to
test 5
4
Check cable for short circuit:
—
ECM pin 80 to ECM pin 69
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 tool function test to verify
fault cleared
OK
Action complete — quit test
Fault still present
Contact Triumph service
Circuit Diagram
Alarm
Control
Unit
Deleted from
V/N 60540 (T595)
V/N 61893 (T509)
Fusebox
s
^
a
°C
2
^
r n
ritr-- -
PG
-
Er
(L
L
`3^ ---
P-
GA
co
Fuel
Pump
Relay
w
PW 3
G Fuel
Pump
Engine
Control
Module
9.67