|
Test
|
Test Equipment
|
Check
|
Notes
|
Nominal
|
Possible Cause of Fault
|
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Step
|
Multimeter
|
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|
Value
|
Trouble-shooting
|
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|
MKM-587-A
|
of
|
between
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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 ECSR 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
|
|
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5
|
Ohmmeter,
range 2 MW
|
Diagnostic
lead to ECSR 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 ECSR control unit
|
XD/
Ter. 3
|
Ground
|
Disconnect
wiring harness plug M61
|
greater
than
100
kW
|
Short
circuit to ground in lead XD/Ter. 3
If
okay and test step 5 not okay: ECSR control unit defective
|
|
|
7
|
Ohmmeter,
range 200 W
|
Diagnostic
lead to ECSR control unit Passage check
|
XD/
Ter. 3
|
Wiring
har- ness plug M61/ Ter. 4
|
Ignition
OFF
|
lower
than
2
W
|
Interruption
in lead XD/Ter. 3 to wiring harness plug M61/Ter. 4
Proceed
with test step 8
|
|
|
8 *)
|
Voltmeter,
range 20 V/DC
|
Diagnostic
lead to ECSR control unit
|
XD/
Ter. 3
|
Ground
|
Ignition
OFF
Disconnect
wiring harness plug M61
|
lower
than
2
V
|
Short
circuit to battery voltage in lead XD/Ter. 3
If
okay and test step 4 not okay: ECSR control unit defective.
|
|
| 9 |
|
Ohmmeter,
range 200 W
|
Ground
to ECSR control unit
|
Wiring
har- ness plug M61/ Ter. 19
|
Ground
|
Ignition
OFF
Disconnect
wiring harness plug M61
|
lower
than
2
W
|
No
ground to ECSR control unit
|
|
| 10 |
|
Voltmeter,
range 20 V/DC
|
Battery
voltage
Ter.
30 to ECSR control unit
|
Wiring
har- ness plug M61/ Ter. 15
|
Ground
|
Ignition
OFF
Disconnect
wiring harness plug M61
|
greater
than 11 V
|
Battery
voltage Ter. 30 absent to wiring harness plug M61/Ter. 15
|
|
| 11 |
|
Ohmmeter,
range 200 W
|
Battery
voltage Ter. 15 to ECSR control unit
|
Wiring
har- ness plug M61/ Ter. 11
|
Ground
|
Ignition
ON
Disconnect
wiring harness plug M61
|
greater
than 11 V
|
Battery
voltage Ter.15 absent to wiring harness plug M61/Ter. 11
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