Multec - S (C 16 XE) F0:DATA LIST
| No. | TECH 1 Display | Conditions for Checking | Nominal Value | Trouble Codes | Terminal |
|---|---|---|---|---|---|
| 36 | INJECTION PULSE | Ignition ON | 25,81 | B 1, A 15, A 2, A 4 | |
| Switch off all consumers | |||||
| Engine running at idle speed, at operating temperature | |||||
| 2.0 to 3.0 ms |
The injection period is an internal value of the control unit.
If the injection period considerably deviates from the values specified above, check the following points:
All consumers switched off?
COOLANT TEMP. OK ? (test step 02)
MASS AIR FLOW S. OK ? (test step 03)
IDLE AIR CONTROL OK ? (test step 04)
TPS SIGNAL OK ? (test step 05)
O2 SENSOR LOOP closed OK ? (test step 09)
O2 INTEGRATOR OK ? (test step 11)
O2 BLM CELL NO. OK ? (test step 13)
O2 BLM CELL, CONT OK ? (test step 14)
FUEL TANK VENT. OK ? (test step 21)
KNOCK VOLTAGE OK ? (test step 29)
If all above checks are OK: With TECH 1: carry out control unit reset.
(SELECT RESET IDLE ADJUST), repeat test
| Trouble - shooting: | Nominal Value: | Cause of Fault: |
(If nominal value is not attained)
· Select TECH 1 mode "F8"
· Using arrow keys, increase idle speed (1200 rpm)
· Using "Yes" key, select data list parameter INJECTION PULSE
· Switch off consumers
| 1.1 to 1.2 ms | |
|---|---|
| · Using the arrow key on TECH 1, mode "F8", set idle speed to 650 rpm. | The injection period should slightly increase as the engine speed drops. |
| · Control unit defective |
· Using "Yes" key, select data list parameter INJECTION PULSE.
| 1.3 to 1.5 ms | ||
|---|---|---|
| · Disconnect wiring harness plug X 10 to injectors Y 7 - 1 to Y 7 - 4 | · Resistance greater than 100 kW | |
| · Lead interruption |
Using multimeter, measure resistance:
from: plug X 10 (engine side) Ter. E
to: plug X 10 (engine side) Ter. A - D
(Y 7 - 1 to Y 7 - 4, consecutively)
| · Engine cold | 15 W - 16.5 W at (20 °C - 40 °C / 68 F - 104 F) | · Resistance less than 2 W: short circuit in wiring harness |
· Nozzle defective (at which a resistance differing from the nominal value was measured)
· Ignition OFF
· Disconnect fuel pump relay, bridge Ter. 2 and Ter. 8
· Disconnect wiring harness plug for tank vent valve Y 34
· Measure voltage:
from: plug X l0 Ter. A - D (Y 7 - 1 to Y 7 - 4, consecutively)
to: ground
| less than 0.1 V | · Short circuit to voltage |
from: plug X l0 Ter. A - D
to: socket, fuel pump relay K 58 Ter. 8
| · Ignition lock S 1 defective |
· Ignition ON
· Measure voltage:
from: plug X 10 Ter. E
| to: ground | greater than 11 V | · Lead interruption |
from: plug X 10 Ter. E
to: socket, fuel pump relay K 58 Ter. 8
· Short circuit to ground
from: plug X 10 Ter. E
to: socket, fuel pump relay K 58 Ter. 8
· Ignition OFF
· Using Multimeter, measure resistance:
from: plug X 10 Ter. A - D
(Y 7 - 1 to Y 7 - 4, consecutively)
to: ground
| greater than 100 kW | · Short circuit in wiring harness |
from: injector Ter. 1
(at which a lower resistance was measured)
to: ground
· Disconnect control unit wiring harness plug K 57
· Using multimeter, measure resistance:
from: plug X 10 Ter. A, B, C, D
to: wiring harness plug for control unit K 57 B 1, A 15, A 2, A 4
| less than 2 W | · Lead interruption |
from: plug X 10 Ter. A, B, C, D
| to: corresponding terminal, wiring harness plug for control unit K 57 |
· Using multimeter, measure resistance:
from: plug X 10 Ter. A, B, C, D
| to: socket, fuel pump relay K 58 Ter. 8 | greater than 100 kW | · Short circuit in wiring harness |
from: plug X 10 Ter. A, B, C, D
to: socket, fuel pump relay K 58 Ter. 8
| If nominal values are attained | · Controlled canister purge valve Y 34 defective. |
· Control unit defective