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Trouble Godes - diagramas.diagram...

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] a Engine managementltransmission<br />

Flash type<br />

Hex type<br />

0 A<br />

2C<br />

65<br />

95<br />

96<br />

97<br />

1 6A<br />

AE<br />

AF<br />

BO<br />

B 1<br />

26<br />

9A<br />

99<br />

Fault location<br />

Model: Cherokee 2,514,O Grand Cherokee 4,0/5,2 Wrangler 2,514,O<br />

Fuel pump relaylengine control relaylfuel<br />

level sensor - circuit malfunction<br />

Engine control relay<br />

Engine control relay<br />

Fuel pump relay<br />

Fuel level sensor - low input<br />

Fuel level sensor - high input<br />

Fuel level sensor - malfunction<br />

Randomlmultiple cylinder(s) - misfire<br />

detected<br />

Probable cause<br />

Wiring open circuitlshort circuit, fuel pump relay,<br />

engine control relay, fuel level sensor<br />

Wiring open circuitlshort circuit, engine control<br />

relay<br />

Wiring open circuit, engine control relay<br />

Wiring open circuitlshort circuit, fuel pump relay<br />

Wiring open circuit, fuel level sensor<br />

Wiring short circuit to positive, fuel level sensor<br />

Wiring, fuel level sensor<br />

Wiring, spark plug(s), HT lead@), injector(s),<br />

ignition coil(s), low compression<br />

Randomlmultiple cylinder(s) - misfire Wiring, spark plug(s), HT lead(s), injector(s),<br />

detected ignition coil(s), low compression<br />

Cylinder 1 - misfire detected<br />

/ Cylinder 2 - misfire detected<br />

I Cylinder 3 - misfire detected<br />

I Cylinder 4 - misfire detected<br />

Wiring, engine mechanical fault, ignitionlfuel<br />

system, injector<br />

Wiring, engine mechanical fault, ignitionlfuel<br />

system, injector<br />

Wiring, engine mechanical fault, ignitionlfuel<br />

system, injector<br />

Wiring, engine mechanical fault, ignitionlfuel<br />

system, injector<br />

Cylinder 5 - misfire detected<br />

Cylinder 6 - misfire detected<br />

Cylinder 7 - misfire detected<br />

Cylinder 8 - misfire detected<br />

Ignition coil A, primary -circuit malfunction<br />

Battery ambient temperature sensor -<br />

voltage lowlhigh<br />

Battery ambient temperature sensor -<br />

voltage high<br />

Battery ambient temperature sensor -<br />

voltage low<br />

Wiring, engine mechanical fault, ignitionlfuel<br />

system, injector<br />

Wiring, engine mechanical fault, ignitionlfuel<br />

system, injector<br />

Wiring, engine mechanical fault, ignitionlfuel<br />

system, injector<br />

Wiring, engine mechanical fault, ignitionlfuel<br />

system, injector<br />

Wiring, ignition coil<br />

Wiring, battery ambient temperature sensor, ECM<br />

Wiring, battery ambient temperature sensor, ECM<br />

Wiring, battery ambient temperature sensor, ECM<br />

Transmission control system - malfunction Wiring, transmission fluid level, transmission<br />

mechanical fault, PNP switch, TCC solenoid,<br />

TFT sensor, TFP solenoid, shift solenoid,<br />

overdrive solenoidlswitch, governor pressure<br />

solenoid, transmission system relay, ECM<br />

1 32<br />

1 4A<br />

1 4B<br />

I Shift solenoid (SS) 3-4 - electrical<br />

Transmission fluid temperature (TFT)<br />

sensor - low input<br />

Transmission fluid temperature (TFT)<br />

sensor - high input<br />

I Wiring, shift solenoid, ECM<br />

Wiring short circuit to earth, TFT sensor, ECM<br />

Wiring short circuit to positive, TFT sensor, ECM<br />

Governor pressure not equal to target<br />

(15-20 PSI) - mid pressure malfunction<br />

Signal wire open circuitlshort circuit, valve body,<br />

sensor supply wire open circuit, transmission fluid<br />

level, governor pressure solenoid, transmission<br />

mechanical fault, ECM - no 5 volt supply

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