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

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$1 CHRYSLER<br />

Model: Cherokee 2,514,O Gr<strong>and</strong> Cherokee 4,015,2 Wrangler 2,514,O<br />

1 I I -- 5 .I Engine managemenVtransmission<br />

Flash type<br />

Hex type<br />

<strong>Fault</strong> location<br />

Probable cause<br />

Engine coolant temperature (ECT) sensor - Wiring, coolant thermostat, ECT sensor<br />

voltage lowlhigh<br />

Engine coolant temperature (ECT) sensor - Coolant thermostat, wiring short circuit to earth,<br />

low input<br />

I ECT sensor<br />

Engine coolant temperature (ECT) sensor - Coolant thermostat, wiring open circuitlshort to<br />

high input<br />

positive, earth wire defective, ECT sensor<br />

Intake air temperature (IAT) sensor - I Wiring, IAT sensor<br />

voltage lowlhigh<br />

Intake air temperature (IAT) sensor -<br />

low input<br />

Intake air temperature (IAT) sensor -<br />

high input<br />

. Throttle position (TP) sensor -<br />

voltage lowlhigh<br />

25<br />

'I A<br />

1 B<br />

84<br />

a9<br />

r1&<br />

I Throttle position (TP) sensor - low input<br />

27 I ( Injector(s) - circuit malfunction I Wiring, injector<br />

/ I3 I Injector 3 - circuit malfunction I Wiring, injector<br />

3 1<br />

i 4<br />

1- ,;-<br />

Throttle pos~t~on (TP) sensor - high input<br />

r Throttle position (TP) sensor -<br />

rangelperformance problem<br />

Idle air control (IAC) valve<br />

Idle speed control (ISC) system -<br />

malfunction<br />

Idle speed control (ISC) system -<br />

I rpm lowerlh~qher than expected<br />

Injector 2 - circuit malfunction<br />

Injector 1 - circuit malfunction<br />

1 3D I Injector 4 - circuit malfunction I Wiring, injector<br />

1 45 ( Injector 5 - circuit malfunction I Wiring, injector<br />

1 46 I Injector 6 - circuit malfunction I Wiring, injector<br />

1 a'-<br />

, ,rljector 7 - circuit malfunction<br />

Wiring, injector<br />

50<br />

12<br />

Injector 8 - circuit malfunction<br />

Evaporative emission (EVAP) canister<br />

purge valvelEVAP system<br />

Evaporatwe emission (EVAP) canister<br />

purge valve - circuit malfunction<br />

71<br />

Evaporative emission (EVAP) system -<br />

incorrect flow detected<br />

P, 3 Evaporative emission (EVAP) system -<br />

I small leak detected<br />

Evaporative emission (EVAP) system -<br />

large leak detected<br />

Wiring short circuit to earth, IAT sensor<br />

Wiring open circuitlshort to positive, earth wire<br />

defective, IAT sensor<br />

Wiring, accelerator cable adjustment, TP sensor<br />

Wiring short circuit to earth, TP sensor<br />

Wiring short circuit to positive, TP sensor<br />

Wiring, accckrmm cable adjustment, TP sensor<br />

- -- --<br />

Wiring open circu~tlshort circuit, IAC valve<br />

Wiring open circuitlshort circuit, IAC valve<br />

Wiring, air leak, throttle valve tightlsticking,<br />

IAC valve<br />

Wiring, injector<br />

Wiring, injector<br />

Wiring, injector<br />

Wiring, EVAP canister, EVAP canister purge valve<br />

- - - . - . -<br />

Wiring open circuitlshort circuit, EVAP canister<br />

purge valve<br />

Hose connection(s), intake leak, EVAP canister<br />

purge valve<br />

Hose connection(s), intake leak, EVAP canister,<br />

EVAP canister purge valve<br />

Hose connection(s), intake leak, EVAP canister,<br />

EVAP canister purge valve<br />

Evaporative emission (EVAP) system - Hose connection(s), hose blockedltrapped,<br />

blockaqe detected / EVAP canister<br />

Evaporative emission (EVAP) leak<br />

detection pump - pressure switch<br />

I<br />

Evaporative emission (EVAP) leak<br />

detection pump solenoid<br />

Wiring<br />

Wiring, hose leaklblockage, EVAP leak detection<br />

open circuitlshort circuit, hose leak/<br />

blockage, EVAP leak detection pump solenoid

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