Suzuki GRAND VITARA JB416, Service Manual

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1A-72 Engine General Information and Diagnosis:
Special Tools and Equipment
Special Tool
S5JB0E1108001
2 Electric load signal circuit check
1) Start engine and select “DATA LIST” mode on scan tool.
2) Check electric load signal under following conditions
respectively.
A/C switch signal
Engine running, A/C switch OFF: OFF
Engine running, A/C switch ON and blower speed
selector turned 1st position or more: ON
Blower fan signal
Engine running, blower speed selector OFF: OFF
Engine running, blower speed selector 5th position
or more: ON
PSP signal
Engine running, steering wheel to neutral position:
OFF
Engine running, turning steering wheel to the right
or left as far as it stops: ON
Electric load signal
Engine running, rear defogger switch or headlight
switch OFF: OFF
Engine running, rear defogger switch or headlight
switch ON: ON
Is check result satisfactory?
Electric load signal
circuit is in good
condition Check defective signal
circuit.
Step Action Yes No
09933–06320
ECM check harness (120P)
)