Description

The table below lists the ECU DTC (diagnostic trouble codes) and the corresponding code generated by blink codes.

DTCBlink CodePossible causes of faultPossible effectsRectifying Fault
00000

Control Unit faulty
1111-Earth Connections to J192 plug D contacts 1,2,3,16
-Control unit faulty
Engine does not fireCheck earth connections as per circuit diagram
000004444- If a fault is present, the fault has not been detected by self diagnosis- Continue fault finding using "Fault finding engine" binder
00000

End of output
0000---
00281
- Vehicle Speed Signal (G68)
- No signal

- Note on fault code 00281 - If this code is displayed check first whether the speedometer is working. The fault indication should be ignored if the speedometer is faulty
1231 -wiring between instrument panel and MPI conrol unit J192
- No continuity or short circuit in wiring between G68 and J192
- G68 faulty
-Engine stalls during overrun (eg when declutching)-Read individual measuring value on channel 15 page 01-25 or check wiring between instrument panel and J192 control unit using the circuit diagram
00512
- Hall sender not on reference mark

* Mechanical fault
2114 -Timing belt slipped
- Hall sender G40 incorrectly adjusted
-Ignition timing sender pin G4
-Check timing belt,repair group 15
-Read measuring value block from display sector 9 - page 01-16
-Check G4 pin -page 28-11
00513
Engine speed sender (G28)
-No signal
-No signal







- Mechanical fault
2111 -G28 contaminated by metal particles
-G28 socket loose
-Gap between G28 and flywheel ring gear   greater than 1.2mm
-Tooth missing from flywheel ring gear
-Open circuit in wiring between
  3 pin connector in engine
  compartment and G28
-Open circuit in wiring between J192
  and G28
-Short circuit between connector C contacts 1,2,3 and J192 or screening or engine earth
-Open circuit in screening of G28
-3 pin plug connection of G28 & G4
  in engine compartment mixed up
-G28 faulty
-Input for G28 at J192 faulty
  (J192 faulty)
-Engine does not start
 -Misfiring
 -Engine cuts out







 -Engine does not start
-Test G28 - page 28-13
-Rectify short circuit or open circuit








-Plug connectors G4 & G28 correctly
00514
Ignition timing (G4)
-No signal
*Mechanical fault
2112 -G4 socket loose
-Gap bewtween G4 flywheel ring gear pulse trigger pin > 1.2mm
-Pin on flywheel bent or
  broken off
-Open circuit in wiring between 3 pin connector in engine compartment and G4
connector C contacts 4,5,6 and MPI control unit J192 or screening or engine earth
-G4 screening open circuit
-3 pin plug connection of G4 & G28
  in engine compartment mixed up
-G4 faulty
-Input for G4 at J192 faulty
  (J192 faulty)
-Fault prior to engine start or
  attempt at starting:
  engine does not start
 -Fault after engine start: fault is stored





 -Engine does not start
-Test G4 - page 28-11
-Rectify short circuit or open circuit







-Plug connectors G4 & G28 correctly
00515
Hall Sender (G40)

-Open circuit/short
 cicuit to positive

-Short circuit to earth
2113 -No supply voltage for G40 from J192
-signal line to J192 open circuit or signal line connector C contacts 7,8,9 short circuit to earth
-Open circuit in wiring between 3 pin
  plug connection in engine compartment
  and J192
-Ignition timing sender G4 pulse trigger pin position incorrect
-G40 faulty
-Input for G40 in J192 faulty (J192 faulty)
-engine power output reduced under full load





-exhaust emission values not ok
- high fuel consumption
-Test G40

-Rectify short circuit or open circuit using the circuit diagram






00516
Idling speed switch (F60)

-Open circuit/short circuit
  to positive
-Short circuit to earth
2121 -F60 adjustment incorrect
-Throttle valve jammed
-floor mat depressing accelerator pedal
-Throttle cable incorrectly adjusted
-Open circuit to connector A contact 9 of MP control unit J192
-Input for F60 in J192 faulty (J192 faulty)
-J192 connector A contact 9 has short to earth
-Moisture in throttle valve connector
-Idle speed reverts to fixed setting

-Idling speed not within specified range
-Test F60 and adjust




-Adjust throttle cable
-Rectify open circuit in wiring
-Rectify short circuit
00518
Throttle Valve
Potentiometer G69

-Open circuit / short
  circuit to earth

-Implausible signal
2212 -Open circuit between G69 and MPI control unit J192
-Short circuit to earth in G69
  or in cable connection between
  G69 and J192
-G69 faulty
-J192 faulty
Moisture or corrosion in G69 plug connection
reduced power output
-Test G69
00520
Air volume / flow meter
-G70/G19
-short circuit to positive
-Open / short circuit to earth
2232 -fuse faulty
-open circuit between G70 and MPI control unit J192
-G70 power supply interrupted or short circuit to earth
-G70 or wiring between G70 and J192 short circuit to positive or earth
-G70 faulty
-G70 input in J192 faulty (J192 faulty)
-Emergency running
-poor engine speed pick up
-loss of power
-engine stalls after starting
-or during overrun
-Check G70
00521
CO potentioemeter
-G74
-open / short circuit to positive
2242 -fuse S27 faulty
-open circuit between G74 and MPI control unit J192
-short circuit to positive in G74 or in wiring between G70 and J192
-poor power take-up from standstill
-poor engine speed pick up, CO cannot be adjusted
-Check G74
00522
Coolant temperature
sender G62
-short circuit to earth
-open/shprt circuit to positive
2312 -Short circuit to earth
-Moisture in connector of G62
-Open circuit between G62 and MPI control unit J192
-Contact resistances between G62 & J192
-G62 faulty
-Input of G62 in J192 faulty (J192 faulty)
-Cold starting problems in very cold temperatures
-intermittent powr loss / misfiring during warm up
-Test G62
00524
Knock sensor #1 G61

-No signal
2142 -G61 loose or Corrosion in connector
-Open or short circuit
  in wiring between G61 & J192
-Short circuit between G61 and earth
  or screening
-G61 faulty
-Input for G61 in J192 faulty (J192 faulty)
-excessive fuel consumption
-lack of power
-sudden loss of power (eg misfiring)
--Tightening torque 10Nm
-Rectify open or short circuit
00525
Lambda probe G39

-Short circuit to positive
-No signal
-Short circuit to earth
2342 -Open circuit in wiring to J192
-Probe heater not operating
-Fuse #28 faulty
-Heating resistor in probe faulty
-Wiring of probe heater
-Short circuit of signal wire to earth
-Short circuit of signal wire to screening
-Lambda probe faulty
-emission values not ok
-lambda probe reverts to fixed setting
-Rectify open circuit in wiring
-Test lambda probe heater
00531
Air volume meter reference voltage G70

-Open / Short circuit to positive
2233 -Open circuit between MPI control unit J192 connector A contacts 5 and 3
-short circuit between J192 connector A contacts 5 and 3 and positive
-Check G70
rectify open/short circuit in wiring
00532

Supply Voltage

-Signal too weak
2234 -Supply voltage greater than 16 volts
-Alternator faulty
-overvoltage caused by starting booster
-Poor earth connection to J192
-Battery discharged
-Current drain with igntion off
MPI control unit J192 damaged

-Idling speed not within specified range
-Voltage below 6 volts
-Engine will not run
-Check voltage

-Check battery charge state
Check J192
-Test voltage supply
00535
Knock sensor 1
control limit exceeeded
2141 -fuel octane rating < 91 RON
- applies to cylinder 1 and 2
-knock sensor G61 loose
-abnormal engine noise (loose engine mounts)
-G61 screening open circuit
-knock control module in MPI control unit J192 faulty (J192 faulty)
-slight power loss
-max road speed not obtained
-Engine runs rough
-use only fuel with 91 RON rating
-tighten knock sensor #1 to 10Nm
-Rectify open circuit
-replace J192
00535
Knock sensor 2
control limit exceeeded
2143 -fuel octane rating < 91 RON
- applies to cylinder 3,4,5
-knock sensor G66 loose
-abnormal engine noise (loose engine mounts)
-G66 screening open circuit
-knock control module in MPI control unit J192 faulty (J192 faulty)
-slight power loss
-max road speed not obtained
-Engine runs rough
-use only fuel with 91 RON rating
-tighten knock sensor #2 to 10Nm
-Rectify open circuit
-replace J192
00537

Lambda sensor control

-Control threshold exceeded
-Control threshold not reached
2341-fuse S28 faulty
-Fuel tank empty at least 10 litres
-Fuel system pressure too low
-Failure of spark plugs,spark plug connectors, HT leads, distributor cap or rotor arm
-secondary air downstream of G70
-Leak in exhaust system up to catalyst
-Faulty lambda probe
-Fuel system pressure too high
activated carbon filter system solenoid valve 1 N80 jammed
-CO ratio upstream of catalyst < 0.3%
-excessive fuel consumption
-Formation of black smoke
-Spark plugs sooted
-CO upstream of catalyst greater than 1%
-Fill up fuel tank
-Recify air leak
-Test lambda probe
-Test fuel system pressure
- -Check activated carbon filter system solenoid valve 1 N80
00540

Knock Sensor #2, G66

- No signal
2144 -Corrosion in connector
-G66 loose
-Open circuit in wiring or short circuit
  between G66 and J192
-Short circuit between G66 and earth
  or to screening
-G66 faulty -Input for G66 in J192 faulty (J192 faulty)
-High fuel consumption
-lack of power
-sudden loss of power (eg misfiring)
-Tightening torque 10Nm
-Rectify open or short circuit
01241

Solenoid valve 2 for
activated charcoal
canister N115

-Open/Short circuit to positive
-Open circuit/short circuit
  to earth
4331 -Short circuit to positive in N115 or in the cable connection between N115 and J192
-Short circuit to earth in N115 or in the cable connection between N115 and J192
-fuse S28 faulty
-Open circuit in wiring
- poor pick-up under partial load
-possible smell of petrol
-Test N115
01247

Solenoid valve 1 for
activated charcoal
canister N80

-Open/Short circuit to positive
-Open circuit/short circuit
  to earth
4343 -Short circuit to positive in N80 or in the cable connection between N80 and J192
-Short circuit to earth in N80 or in the cable connection between N80 and J192
-fuse S28 faulty
-Open circuit in wiring
- poor pick-up under partial load
-possible smell of petrol
-Test N80
01249, 01250, 01251, 01252, 01253

Injector cyl #1 N30
Injector cyl #2 N31
Injector cyl #3 N32
Injector cyl #4 N33
Injector cyl #5 N83


-shortcircuit to earth
-Short circuit to positive
4411, 4412, 4413, 4414, 4421 -series resistor faulty
-Short circuit to earth
-Open circuit in wiring
-Fuse S13 faulty
-Short circuit to positive at connector or in injector
-Engine runs rough or stalls -Test injectors
-Check wiring & fuse S13
01257

Idle speed Stabilisation
Valve N71

-Short circuit to positive
-Open circuit / shortcircuit to earth
4431 -Short circuit to positive in N71 or in cable connection between N71 and MPI control unit J192
-Short circuit to earth in N71 or in cable connection between N71 and J192
-Open circuit in wiring
-At engine operating temperature idling speed differs from specification
-With cold engine, engine may stall
--Irregular idling speed
-Test N71