| Test | TECH 1 | Notes | Nominal Values | Possible |
|---|---|---|---|---|
| Step | Display | Trouble | ||
| No. | Codes | |||
| 02 | FUEL INJECTORS | A defect in the injector circuit | - | 44 |
| TEST FAILED! | affects the mixture correction values, | |||
| see also test step 21, | ||||
| F0:DATA LIST |
Trouble-shooting: Nominal Value: Cause of Fault:
(If nominal value is not attained)
Ignition ON
· Measure voltage at 12V · Lead interruptions from control unit Ter. 37
- Control unit Ter. 37 or from fuel pump relay Ter. 87
- Injection valve plug Ter. 1 to injection valve
· Disconnect all injection valve plugs Checking lamp flashes · Interruption or short circuit to ground of cables from
Connect Checking Lamp KM 602-1 to all on all cables - Injection valve cyl. 1/2 or 1/2/3 to
injector plug cables one after when engine is started control unit Ter. 16
the other and start engine - Injection valve cyl. 3/4 or 4/5/6 to
control unit Ter. 17
· Control unit defective
Injection valve resistance value If nominal values are attained · Injection valve defective
at room temperature: approx. 16 ohms
Note:
C 30 SE engine: Separate plug X 34
Measure Ter. A to B; Ter. A to C: 5 to 5.7 W
Ignition ON
Wiring harness side Ter. A to ground 12 V