Dodge Viper SRT-10 (ZB). Manual — part 449
Symptom:
*ENGINE CRANKS BUT DOES NOT START
POSSIBLE CAUSES
NO START PRE-TEST
POWERTRAIN FUSES OPEN
SECONDARY INDICATORS PRESENT
ENGINE MECHANICAL PROBLEM
(K342) ASD RELAY OUTPUT CIRCUIT OPEN
FUEL CONTAMINATION
TEST
ACTION
APPLICABILITY
1
NOTE: The following list of items must be checked before continuing with
any no start tests.
The battery must be fully charged and in good condition. A low charged battery may
produce invalid test results. If the battery is low, charge the battery and then attempt
to start the vehicle by cranking the engine for 15 seconds, 3 consecutive times.
This will allow any DTCs to set that may have been erased due to a dead battery.
Try to communicate with PCM if not able to communicate check fuses.
Ensure the Powers and Ground to the PCM are ok.
Make sure the PCM communicates with the DRBIII
t and that there are no DTCs
stored in the PCM memory. If the PCM reports a No Response condition, refer to the
Communication category for the proper tests.
Read the PCM DTCs with the DRBIII
t. If any DTCs are present, they must be
repaired before continuing with any other No Start diagnostic tests. Refer to the
Symptom list for the related P-code that is reported by the PCM.
Ensure that the Bus is functional. Attempt to communicate with the Instrument
Cluster and VTSS, If you are unable to establish communications refer to the
Communication category for the proper symptoms.
The Sentry Key Immobilizer System must be operating properly. Check for proper
communication with the DRBIII
t and check for DTCs that may be stored in the
Sentry Key Immobilizer Module (SKIM). Repair the DTC(s) before continuing.
If no DTCs are found, using the DRBIII
t, select Clear PCM (BATT Disconnect).
Crank the engine several times. Using the DRBIII
t, read DTCs. If a DTC is present
perform the DTC diagnostics before continuing.
Were any problems found?
All
Yes
→ Repair as necessary.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
No
→ Go To 2
2
Check for any open fuses in the PDC or Junction Block that may be related to the No
Start condition.
Are any of the fuses open?
All
Yes
→ Replace the open fuse and check the related circuit(s) for a short
to ground.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
No
→ Go To 3
203
STARTING
TEST
ACTION
APPLICABILITY
3
Ignition on, engine not running.
With the DRBIII
t, under DTCs & Related Functions, read the Secondary Indicators
while cranking the engine.
Are there any Secondary Indicators present while cranking the engine?
All
Yes
→ Refer to symptom list and perform tests related to the secondary
indicator that is reported by the DRBIII
t.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
No
→ Go To 4
4
Check for any of the following conditions/mechanical problems.
ENGINE VALVE TIMING - must be within specifications, check for broken timing
components
ENGINE COMPRESSION - must be within specifications
ENGINE EXHAUST SYSTEM - must be free of any restrictions or leaks.
Are there any engine mechanical problems?
All
Yes
→ Repair as necessary.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
No
→ Go To 5
5
Turn the ignition off.
Remove the ASD relay from the PDC.
Disconnect the PCM harness connectors.
Verify the ASD Relay is getting voltage on the Fused B+ circuits before continuing.
Measure the resistance of the ASD Relay Output circuit from the ASD Relay
connector to the PCM harness connector, Ignition coils, and the fuel injectors.
Is the resistance below 5.0 ohms?
All
Yes
→ Go To 6
No
→ Repair the open in the (K342) ASD Relay Output circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
6
Verify that the Fuel tank is not empty before continuing.
Follow the diagnostics for Checking Fuel Delivery in this manual.
Was the No Start condition solved after following the above diagnostic test?
All
Yes
→ Test Complete.
No
→ Check for contamination/water in the fuel. Ensure the fuel being
used in this vehicle meets manufactures Fuel Requirement, refer
to the service manual.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
204
STARTING
*ENGINE CRANKS BUT DOES NOT START —
Continued
Symptom:
*FUEL PRESSURE LEAK DOWN
POSSIBLE CAUSES
FAULTY FUEL PUMP MODULE
FUEL INJECTOR(S)
TEST
ACTION
APPLICABILITY
1
NOTE: Before continuing visually and physically inspect the fuel delivery
system for external leaks or damage. Repair /replace as necessary.
Turn the ignition off.
WARNING: The fuel system is under a constant pressure even with the
engine off. Before testing or servicing any fuel system hose, fitting or line,
the fuel system pressure must be released.
Install special tool #6539 (5/16
9) or #6631 (3/89) fuel line adapter.
Install the fuel pressure gauge.
Start the engine and allow the fuel system to reach maximum pressure.
Turn the ignition off.
NOTE: Fuel specification is 379 KPa +/- 14 KPa (55 psi +/- 2 psi).
Using special tool #C4390, Hose Clamp Pliers, pinch the rubber fuel line between the
fuel pressure gauge and the engine.
Monitor the fuel pressure gauge for a minimum of 5 minutes.
NOTE: The pressure should not fall below 276 KPa (40 psi)
Does the fuel pressure drop?
All
Yes
→ Replace Fuel Pump Module.
Perform POWERTRAIN VERIFICATION TEST VER - 2.
No
→ Go To 2
2
WARNING: The fuel system is under a constant pressure even with the
engine off. Before testing or servicing any fuel system hose, fitting or line,
the fuel system pressure must be released.
Remove special tool #C4390.
Start the engine and allow the fuel system to reach maximum pressure.
Turn the ignition off.
NOTE: Fuel specification is 379 KPa +/- 14 KPa (55 psi +/- 2 psi).
Move special tool #C4390, Hose Clamp Pliers, from between the fuel pressure gauge
and the engine to between the fuel pressure gauge and fuel pump module.
Monitor the fuel pressure gauge for a minimum of 5 minutes.
NOTE: The pressure should not fall below 276 KPa (40 psi)
Does the fuel pressure drop?
All
Yes
→ Replace the leaking fuel injectors.
Perform POWERTRAIN VERIFICATION TEST VER - 2.
No
→ Test Complete.
205
STARTING
Symptom:
*NO CRANK CONDITION
POSSIBLE CAUSES
POWERTRAIN FUSES OPEN
MECHANICAL CONDITION
BATTERY CIRCUIT RESISTANCE TOO HIGH
(G5) FUSED IGNITION SWITCH OUTPUT CIRCUIT
PUSH BUTTON STARTER SWITCH
(F145) FUSED IGNITION SWITCH OUTPUT CIRCUIT
CLUTCH INTERLOCK SWITCH
(F45) FUSED IGNITION SWITCH OUTPUT CIRCUIT
(K90) STARTER RELAY CONTROL CIRCUIT OPEN
STARTER RELAY
(A107) FUSED B+ CIRCUIT
(T40) STARTER RELAY OUTPUT CIRCUIT OPEN
STARTER
TEST
ACTION
APPLICABILITY
1
Check for any open fuses in the PDC or Junction Block that may be related to the No
Start condition.
Are any of the fuses open?
All
Yes
→ Replace any open fuses and check the related circuit(s) for a short
to ground.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
No
→ Go To 2
2
NOTE: Verify the battery is fully charged and capable of passing a load test
before continuing.
WARNING: MAKE SURE THE BATTERY IS DISCONNECTED, THEN WAIT
TWO MINUTES BEFORE PROCEEDING.
Turn the engine over by hand to ensure the engine is not seized.
Is the engine able to turn over?
All
Yes
→ Go To 3
No
→ Repair the mechanical condition preventing the starter motor
from cranking.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
3
Check the Battery Cables for excessive resistance using the service information
procedure.
Did either Battery Cable have a voltage drop greater than 0.2 of a volt?
All
Yes
→ Repair the excessive resistance in the Battery circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
No
→ Go To 4
206
STARTING
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст