VEHICLE MANAGEMENT SYSTEMS
QUESTIONS & SOLUTIONS
If an oxygen sensor indicates an AFR(rich AFR) which could cause the condition? -
ANSWERHigh Fuel System Pressure
Which OBDII codes signify an Idle Control Circuit - ANSWERP0505
While manually performing an OBDII drive cycle test, which system will be tested during
2 1/2 mins if idling after start? - ANSWERCanister Purge, O2 system and Cat Converter
will be tested later because it require heat to properly read the system.
OBD II equipped vehicle has MIL but will not communicate with the scan tool. What
would cause the issue? - ANSWERNon-compliant CAN scan tool
Which publication contains procedures for retrieving diagnostic trouble trees? -
ANSWERService Manual
Which on board controllers should be checked for information on the power window? -
ANSWERBCM
On boad diagnostic system publishes U0029, Vehicle communication Bus a
Performance, which tool should you use to test networking wiring? - ANSWERHigh
Speed Lab Scope
In order to replace a splayed pin on a PCM harness, which of the following should be
used? - ANSWERTerminal Tool
OBD II protocol ensures that an MIL will illuminate when tailpipe emission exceed
Federal Test procedures by what %? - ANSWER50% higher or 1 1/2 times the limit
In order to properly start a drive cycle test to verify a system fix, what should the ECT be
less than? - ANSWER50*C or 122*F
If the active suspension were to incur a fault, what would be the generated code start
with an OBD II - ANSWERC for Chassis
V8, OBD compliant hesitate a few mins after a hot soak restart condition and then runs
fine, which sensor is more likely to cause this condition? - ANSWEROxygen sensor
Most common cause of Hard to Start when engine is at operating condition. -
ANSWERAdvance ignition timing
QUESTIONS & SOLUTIONS
If an oxygen sensor indicates an AFR(rich AFR) which could cause the condition? -
ANSWERHigh Fuel System Pressure
Which OBDII codes signify an Idle Control Circuit - ANSWERP0505
While manually performing an OBDII drive cycle test, which system will be tested during
2 1/2 mins if idling after start? - ANSWERCanister Purge, O2 system and Cat Converter
will be tested later because it require heat to properly read the system.
OBD II equipped vehicle has MIL but will not communicate with the scan tool. What
would cause the issue? - ANSWERNon-compliant CAN scan tool
Which publication contains procedures for retrieving diagnostic trouble trees? -
ANSWERService Manual
Which on board controllers should be checked for information on the power window? -
ANSWERBCM
On boad diagnostic system publishes U0029, Vehicle communication Bus a
Performance, which tool should you use to test networking wiring? - ANSWERHigh
Speed Lab Scope
In order to replace a splayed pin on a PCM harness, which of the following should be
used? - ANSWERTerminal Tool
OBD II protocol ensures that an MIL will illuminate when tailpipe emission exceed
Federal Test procedures by what %? - ANSWER50% higher or 1 1/2 times the limit
In order to properly start a drive cycle test to verify a system fix, what should the ECT be
less than? - ANSWER50*C or 122*F
If the active suspension were to incur a fault, what would be the generated code start
with an OBD II - ANSWERC for Chassis
V8, OBD compliant hesitate a few mins after a hot soak restart condition and then runs
fine, which sensor is more likely to cause this condition? - ANSWEROxygen sensor
Most common cause of Hard to Start when engine is at operating condition. -
ANSWERAdvance ignition timing
