Multec-M (14 SE / C 14 SE / C 16 SE) F0:DATA LIST
| No. | TECH 1 Display | Conditions for Checking | Nominal Value | Trouble Codes | Terminal |
|---|---|---|---|---|---|
| 24 | INJECTION PULSE | Engine OFF, engine cold |
Throttle valve completely CLOSED
Throttle valve completely OPEN (100%)
Engine running at idle speed, operating temperature
greater than 4.5 ms
less than 4.5 ms
| 0.8 to 1.5 ms | - | C 10, |
C 11 /
| C 4 | ||
|---|---|---|
| Trouble-shooting: | Nominal Value: | Cause of Fault: |
| (If nominal value is not attained) |
The injection period is an internal value of the control unit.
If the injection period deviates considerably from the above values, check the following points:
All consumers switched off ?
COOLANT TEMP. (P 30) OK ? (test step 03)
INTAKE AIR TEMP. (P 29) OK ? (test step 04)
O2 SENSOR LOOP closed OK ? (test step 17)
O2 INTEGRATOR OK ? (test step 19)
O2 BLM CELL NO. OK ? (test step 21)
O2 BLM CELL CONT OK ? (test step 22)
PARK/NEUTRAL SW. in idle position (P-N) OK ? (test step 09)
TPS SIGNAL (P 34) OK ? (test step 06)
MAP SENSOR (P 23) OK ? (test step 05)
IDLE AIR CONTROL (M 66) OK ? (test step 15)
If all the above checking points are OK: disconnect control unit from the vehicle electrical system (reset), repeat check
· Select TECH 1 mode "F8"
· Using arrow keys, increase idle speed (1800 rpm)
· Switch off consumers
1.2 to 1.4 ms
· Using arrow key on TECH 1, adjust to 800 rpm
| The injection period should increase slightly due to a decrease in the engine speed | |
|---|---|
| · Control unit defective |
· Ignition OFF
· Using multimeter, measure voltage:
from: injector Ter. 1
to: injector Ter. 2
· Engine cold
15 W - 16.5 W at
(20 °C/68 °F - 40 °C/104°F)
| · Defective nozzle |
Astra Multi-Info-Display receives no
consumption signal:
· Disconnect wiring harness plug X 9.
· Measure voltage:
from: wiring harness plug X 9 Ter. 5
to: ground
| · Ignition ON |
greater than 11 volts
| · Lead interruption |
from: control unit K 57/K 91 Ter. B 4
to: wiring harness plug X 9 Ter. 5
· Short circuit in wiring harness
from: control unit K 57/K 91 Ter. B 4
to: ground
· Ignition OFF
· Disconnect wiring harness plug K 57/K 91
· Measure voltage:
from: wiring harness plug X 9 Ter. 5
to: ground
| less than 1 volts | · Short circuit in wiring harness |
from: control unit K 57/K 91 Ter. B 4
to: battery Ter. 30
· Measure voltage:
from: wiring harness coupling X 9 Ter. 5
to: ground
· Ignition ON
greater than 11 volts
| · Lead interruption |
from: Multi-Info-Display control unit X 20 Ter. 21
to: wiring harness coupling X 9 Ter. 5
· Short circuit in wiring harness
from: Multi-Info-Display control unit X 20 Ter. 21
to: ground
· Multi-Info-Display defective
· Ignition OFF
· Disconnect wiring harness plug X 20 at Multi-Info-Display
· Disconnect wiring harness plug K 57/K 91
· Measure voltage:
from: wiring harness coupling X 9 Ter. 5
to: ground
| less than 1 volts | · Short circuit in wiring harness |
from: Multi-Info-Display control unit X 20 Ter. 21
to: battery Ter. 30
· Multi-Info-Display defective