With starting or warm up complaints do not condition engine to operating conditions but proceed according to complaint.

Listing of Test Steps

1	Test equipment	connect/disconnect according to connection diagram
2	Engine control module version Ignition: ON	read, only possible using HHT, see Parts Microfiche, group 54.
3	Engine coolant level	check, correct.
4	Engine oil level	check, observe condition of oil.
5	DTC's in Engine control module (HFM-SFI) Ignition: ON	read using HHT or impulse counter scan tool.
6	DTC's in EA/CC/ISC control module Ignition: ON	read using HHT or impulse counter scan tool.
6.1	DTC's in CC/ISC control module Ignition: ON	read using HHT or impulse counter scan tool.
6.2	DTC's in ISC control module Ignition: ON	read using HHT or impulse counter scan tool.
7	Throttle control linkage	check throttle valve for free movement and condition. Lubricate bearings, gate levers and ball sockets.
7.1	WOT contact 1)	check using accelerator pedal, adjust (see SMS, Job No. 30 - 1010).
7.2	CTP contact 1)	check, adjust (see SMS, Job No. 30 - 1010).
7.3	Control pressure cable of AT	check, adjust (see SMS, Job No. 30 - 1010).
8	Fuel pressure Relief pressure via valve on gauge.	check (Test and Adjustment Data, section A).
9	Engine rpm (at Idle)	check, only possible using HHT (Test and Adjustment Data, section A).
10	Ignition timing Engine: at Idle	check (Test and Adjustment Data, section A) (Socket 1 on socket box or TNA signal from data link connector X11/4, socket 10).
11	Selector lever position Engine: at Idle	check 2) .
12	Not applicable for U.S. version vehicles	-
13	AIR pump Engine: at Idle	check 2) .
14	Deceleration shut-off Engine: Decelerating	check 2) .
15	Injection time Engine: at Idle	check 2) .
16	Air mass/pressure Engine: at Idle	check 2) .
17	Self-adaptation Engine: at Idle/partial load	check 2) .
18	On-off ratio control Engine: at Idle	check 2) .
19	Throttle valve angle Engine: at Idle	check 2) .
20	O2S voltage	check 2) .
21	Not applicable for U.S. version vehicles	-
22	CTP speed under load	check in TR "D" (with service and parking brake applied) and with all consumers turned on.
23	Battery voltage	check 2) .
24	Ignition fault counter	check 2) .
25	Coil fault counter	check 2) .
26	Coil spark duration	check 2) .
27	Coil spark voltage	check 2) .
28	Knock ignition angle	check 2) .

1) Wide open and closed throttle contact only possible using HHT. 2) Only possible using HHT (Test and Adjustment Data, section A).

Notes Regarding DTC Readout Using Impulse Counter Scan Tool 1. Connect impulse counter scan tool according to diagram. The LED "U-Batt" should come on. If not, check the following: a) Voltage supply. b) Impulse counter scan tool fuse. 2. DTC memory readout a) Ignition: ON. b) Push start button for 2-4 seconds. c) Read and record DTC readout. d) Push start button again. e) Read and record DTC readout. Repeat steps d) and e) until the first DTC readout reappears. 3. Clearing DTC memory a) Ignition: ON b) Press start button for 2-4 seconds (DTC appears). c) Push start button 6-8 seconds, thereby clearing the previously displayed malfunction (DTC) from memory. d) Repeat steps b) and c) until DTC (no stored DTC's) appears. 4. Resetting and Reactivating the Engine Control Module DTC Memory a) Clear DTC's from memory. b) After DTC reappears, press start button for 6-8 seconds. c) Turn ignition OFF and wait at least 2 seconds. d) Turn ignition ON and wait at least 10 seconds. Then start engine.

Equipment

Engine analyzer 1)	Bear DACE (Model 40-960) Sun MEA-1500MB
Hand-Held Tester (HHT)	see applicable Service Information in groups 58 and 99

1) Available through the MBUSA Standard Equipment Program.