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Trouble code identification<br />

EOBD<br />

type<br />

PO<br />

PI110<br />

PI120<br />

PI171<br />

PI 229<br />

PI 230<br />

Fault location<br />

Refer to EOBD trouble code table<br />

Omega-6 Zafira<br />

Intake manifold air control solenoid 1 - circuit malfunction<br />

Throttle position (TP) sensorlmanifold absolute pressure<br />

(MAP) sensor - implausible signal<br />

Mixture control (MC), engine under load - mixture lean<br />

Engine control relay - voltage high<br />

Engine control relay - voltage low<br />

Erasing<br />

The engine control module (ECM) fault memory can only be<br />

erased using diagnostic equipment connected to the data<br />

link connector (DLC).<br />

Repeat checking procedure to ensure no data remains in<br />

ECM fault memory.<br />

Probable cause<br />

PI231 I Fuel pump relay I Wiring, fuel pump relay<br />

PI326 1 Knock control, cylinder 1 - control limit reached I Wiring, knock sensor (KS), ECM<br />

-<br />

Wiring, intake manifold air control solenoid<br />

Air leak, MAP sensorlhose<br />

Fuel system, intake system<br />

Wiring, engine control relay<br />

Wiring, engine control relay<br />

PI 327 Knock control, cylinder 2 - control limit reached<br />

Wiring, knock sensor (KS), ECM<br />

PI 328<br />

PI329<br />

PI 404<br />

Knock control, cylinder 3 - control limit reached<br />

1 Knock control, cylinder 4 - control limit reached<br />

Exhaust gas recirculation (EGR) valve - range1<br />

performance problem<br />

Wiring, knock sensor (KS), ECM<br />

I Wiring, knock sensor (KS), ECM<br />

I Wiring, EGR valve<br />

PI405<br />

PI410<br />

Exhaust gas recirculation (EGR) valve position sensor - Wiring, EGR valve position sensor<br />

malfunction<br />

Secondary air injection (AIR) pump relay - circuit I Wiring, AIR pump relay<br />

malfunction<br />

PI481 Engine coolant blower motor relay 1 - malfunction Wiring, engine coolant blower motor relay<br />

PI482 Engine coolant blower motor relay 2 - malfunction Wiring, engine coolant blower motor relay<br />

PI483 1 Engine coolant blower motor relay 3 - malfunction I Wiring, engine coolant blower motor relay<br />

PI501<br />

PI 502<br />

Immobilizer control module - program error<br />

Immobilizer control module - no signal<br />

Immobilizer control module incorrectly<br />

programmed<br />

Wiring, immobilizer control module<br />

PI503 I Immobilizer control module - incorrect signal I Immobilizer control module, incorrect key<br />

PI508 I Idle air control (IAC) valve - circuit malfunction I Wiring open circuitlshort to earth, IAC valve<br />

PI 509<br />

PI510<br />

PI 51 5<br />

Idle air control (IAC) valve - circuit malfunction<br />

Closed throttle position (CTP) switch - circuit malfunction<br />

Idle air control (IAC) valve - circuit malfunction<br />

Wiring short to positive, IAC valve<br />

Wiring, CTP switch<br />

Wiring, IAC valve<br />

PI530 1 AC cut-off relay - circuit malfunction I Wiring, AC cut-off relay, ECM

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