|
Test
|
Test Equipment
|
Check
|
Notes
|
Nominal
|
Possible Cause of Fault
|
| Step |
|
Multimeter
|
|
|
|
Value
|
Trouble-shooting
|
|
|
|
MKM-587-A
|
of
|
between
|
|
|
|
|
| 1 |
|
Ohmmeter,
range
200
W
|
Diagnostic
plug XD (ALDL); ground
|
XD
/ Ter. 4
|
Ground
|
Ignition
OFF
|
lower
than
3
W
|
Transition
resistance at grounding point too high
|
|
| 2 |
|
Ohmmeter,
range
200
W
|
Diagnostic
plug XD (ALDL); ground
|
XD
/ Ter. 5
|
Ground
|
Ignition
OFF
|
lower
than
3
W
|
Transition
resistance at grounding point too high
|
|
| 3 |
|
Voltmeter,
range
20
V/DC
|
Diagnostic
plug XD (ALDL); battery voltage
|
XD
/ Ter. 16
|
Ground
|
Ignition
OFF
|
greater
than 11 V
|
Battery
voltage absent or battery voltage too low
|
|
| 4 |
|
Voltmeter,
range
20
V/DC
|
Diagnostic
lead to CDLS control unit
|
XD
/ Ter. 3
|
Ground
|
Ignition
ON
|
greater
than 11 V
|
Carry
out test steps 5 and 7
If
nominal value is attained:
Proceed
with test step 8
|
|
| 5 |
|
Ohmmeter,
range
2
MW
|
Diagnostic
lead to CDLS control unit
|
XD
/ Ter. 3
|
Ground
|
Ignition
OFF
|
greater
than
100
kW
|
Short
circuit to ground
Proceed
with test step 6
|
|
| 6 |
|
Ohmmeter,
range
2
MW
|
Diagnostic
lead to CDLS control unit
|
XD
/ Ter. 3
|
Ground
|
Disconnect
wiring harness plug K37
|
greater
than
100
kW
|
Short
circuit to ground in lead XD / Ter. 3
If
okay and test step 5 not okay: CDLS control unit defective
|
|
| 7 |
|
Ohmmeter,
range
200
W
|
Diagnostic
lead to CDLS control unit passage check
|
XD
/ Ter. 3
|
Wiring
har- ness plug K37/ Ter. 8
|
Ignition
OFF
|
lower
than
2
W
|
Interruption
in lead
XD / Ter. 3 to wiring harness plug
K37 / Ter. 3
Proceed
with test step 8
|
|
| 8 *) |
|
Voltmeter,
range
20
V/DC
|
Diagnostic
lead to CDLS control unit
|
XD
/ Ter. 3
|
Ground
|
Ignition
OFF
Disconnect
wiring harness plug K37
|
lower
than
2
V
|
Short
circuit to battery voltage in lea
XD / Ter. 3
If
okay and test step 4 not okay: CDLS control unit defective
|
|
| 9 |
|
Ohmmeter,
range
200
W
|
Ground
to CDLS control unit
|
Wiring
har- ness plug K37/ Ter. 19
|
Ground
|
Ignition
OFF
Disconnect
wiring harness plug K37
|
lower
than
2
W
|
No
ground to CDLS control unit
|
|
| 10 |
|
Voltmeter,
range
20
V/DC
|
Battery
voltage Ter. 30 to CDLS control unit
|
Wiring
har- ness plug K37/ Ter. 15
|
Ground
|
Ignition
OFF
Disconnect
wiring harness plug K37
|
greater
than 11 V
|
Battery
voltage Ter. 30 absent at wiring harness plug K37 / Ter. 15
|
|
| 11 |
|
Ohmmeter,
range
200
W
|
Battery
voltage Ter. 15 to CDLS control unit
|
Wiring
har- ness plug K37/ Ter. 11
|
Ground
|
Ignition
ON
Disconnect
wiring harness plug K37
|
greater
than 11 V
|
Battery
voltage Ter. 15 absent at wiring harness plug
K37 / Ter. 11
|
|
|
|
|
|
|
|
|
|
|
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|
