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Autodata - Diagnostic Trouble Codes Fault locations and probable causes - 2004 edition

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Model: Cherokee 2,5/4,0 Gr<strong>and</strong> Cherokee 4,0/5,2 Wrangler 2,5/4,0<br />

CHRYSLER<br />

Engine management/transmission<br />

<strong>Trouble</strong> code identification - flashlHex type<br />

Flash type Hex type <strong>Fault</strong> location Probable cause<br />

11<br />

28<br />

I 9D<br />

I BA<br />

Crankshaft position (CKP) sensorlcamshaft<br />

position (CMP) sensor - intermittent signal<br />

Engine control module (ECM)- misfire<br />

detection limit reached<br />

Engine control module (ECM) -<br />

supply voltage disconnected within last 50<br />

ignition switch ON-OFF cycles<br />

Wiring, poor connection, air gap, CKP sensor,<br />

CMP sensor<br />

Wiring, poor connection, engine mechanical fault,<br />

ignitionlfuel system, CKP sensor, ECM<br />

13 1 27 I Manifold absolute pressure (MAP) sensor I Wiring, hose connection(s), MAP sensor<br />

14<br />

15<br />

I<br />

I 24<br />

25<br />

87<br />

23<br />

A6<br />

Crankshaft position (CKP) sensorlcamshaft<br />

position (CMP) sensor<br />

Crankshaft position (CKP) sensor - no signal<br />

Wiring, battery<br />

Manifold absolute pressure (MAP) sensor - Wiring, MAP sensor<br />

input lowlhigh<br />

Wiring, poor connection, air gap, CKP sensor,<br />

CMP sensor<br />

Wiring, air gap, CKP sensor<br />

Manifold absolute pressure (MAP) sensor - Wiring short circuit to earth, MAP sensor<br />

low input<br />

Manifold absolute pressure (MAP) sensor - Wiring short circuit to positive, MAP sensor<br />

high input<br />

Manifold absolute pressure (MAP) sensor -<br />

supply voltage<br />

Vehicle speed sensor (VSS) - signal<br />

Vehicle speed sensor (VSS) - no signal<br />

Vehicle speed sensor (VSS) - circuit<br />

malfunction<br />

17<br />

1 I Engine temperature low for long period Wiring, engine cooling system, coolant<br />

thermostat, ECT sensor<br />

I 3E<br />

I<br />

1 67<br />

1 69<br />

7E<br />

98<br />

9C<br />

CO<br />

Wiring, MAP sensor, ECM<br />

Wiring, VSS, ECM<br />

Wiring, VSS, ECM<br />

Wiring, VSS, ECM<br />

/ Engine temperature low for long period Wiring, engine cooling system, coolant<br />

thermostat, ECT sensor<br />

Insufficient coolant temperature for closed Wiring, engine cooling system, coolant<br />

loop fuel control<br />

I thermostat, ECT sensor<br />

Heated oxygen sensor (H02S) 112,<br />

bank 1 - circuitlsignal malfunction<br />

Wiring, fuel pressure, injector control,<br />

EVAP canister purge valve, compression,<br />

air filter blocked, catalytic converter, H02S<br />

Heated oxygen sensor (H02S) 1, bank 1 - Wiring short circuit to positive, H02S<br />

high voltage<br />

Heated oxygen sensor (H02S) 1, bank 1 - Heating inoperative, wiring, H02S<br />

slow response<br />

Heated oxygen sensor (H02S) 1, bank 1 - Wiring, H02S<br />

heater control - circuit malfunction<br />

Heated oxygen sensor (H02S) 2, bank 1,<br />

heater control - circuit malfunction<br />

Heated oxygLn sensor (H02S) 2, bank 1 -<br />

high voltage<br />

Heated oxygen sensor (H02S) 1, bank 1 -<br />

low voltage<br />

Heated oxygen sensor (H02S) 2, bank 1 -<br />

low voltage<br />

Heated oxygen sensor (H02S) 1, bank 1 -<br />

slow response<br />

Wiring, H02S<br />

Wiring short circuit to positive, catalytic converter,<br />

H02S<br />

Exhaust leak, wiring short circuit to earth, H02S<br />

Exhaust leak, wiring short circuit to earth, H02S<br />

Heating inoperative, wiring, H02S

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