Jaguar X-Type Sedan and Estate (Wagon). Service manual — part 337
1
2
1
1
1
1
2
1
2
1
2
1
2
3
1
2
Is the resistance less than 5 ohms?
Yes
REPAIR the circuit between EN30 pin 2 (B) and GROUND. For additional information, refer to wiring diagrams. CLEAR
the DTC. TEST the system for normal operation.
No
GO to AE2
.
AE2: CHECK THE CIRCUIT INTEGRITY BETWEEN THE ECM AND THE AIR CONDITIONING CLUTCH
Apply a GROUND to the disconnected ECM electrical connector EN16 pin 34 (BG).
Measure the voltage at air conditioning clutch electrical connector EN30 pin 1 (RG).
Is the voltage greater than 10 volts?
Yes
GO to AE3
.
No
GO to AE4
.
AE3: CHECK THE AIR CONDITIONING CLUTCH RELAY TO ECM CIRCUIT FOR SHORT TO GROUND
Measure the resistance between EN16 pin 34 (BG) and GROUND.
Is the resistance less than 10,000 ohms?
Yes
GO to AE4
.
No
INSTALL a new air conditioning compressor clutch relay. For additional information, refer to the electrical guide.
CLEAR the DTC. TEST the system for normal operation. If the DTC is repeated, INSTALL a new ECM.
REFER to:
Engine Control Module (ECM)
(303-14A Electronic Engine Controls - 2.0L NA V6 - AJV6/2.5L NA V6 -
AJV6/3.0L NA V6 - AJ27, Removal and Installation).
Before replacing an ECM, contact dealer technical support.
AE4: CHECK THE CIRCUIT BETWEEN THE AIR CONDITIONING COMPRESSOR CLUTCH AND THE RELAY FOR SHORT TO BATTERY
Measure the voltage between EN30 pin 1 (RG) and GROUND.
Is the voltage greater than 1 volt?
Yes
REPAIR the short circuit. For additional information, refer to wiring diagrams. CLEAR the DTC. TEST the system for
normal operation.
No
GO to AE5
.
AE5: CHECK THE CIRCUIT BETWEEN THE AIR CONDITIONING COMPRESSOR CLUTCH AND THE ACCC RELAY FOR SHORT TO
GROUND
Measure the resistance between EN30 pin 1 (RG) and GROUND.
Is the resistance less than 10,000 ohms?
Yes
REPAIR the short circuit. For additional information, refer to wiring diagrams. CLEAR the DTC. TEST the system for
normal operation.
No
GO to AE6
.
AE6: CHECK THE CIRCUIT BETWEEN FUSE 23 OF THE POWER DISTRIBUTION FUSE BOX AND THE ACCC RELAY FOR SHORT TO
GROUND
Remove Fuse 23.
Measure the resistance between fuse box electrical connector JB34 pin 79 and GROUND.
Is the resistance less than 10,000 ohms?
Yes
REPAIR the short circuit. For additional information, refer to wiring diagrams. CLEAR the DTC. TEST the system for
normal operation.
No
GO to AE7
.
AE7: CHECK THE ACCC RELAY BASE FOR BATTERY VOLTAGE AT PIN 3
Refit Fuse 23.
Measure the voltage between the ACCC relay base pin 3 and GROUND.
Is the voltage greater than 10 volts?
Yes
GO to AE8
.
No
Check/replace fuses. REPAIR the circuit between the relay base and the battery power bus 1. For additional
information, refer to wiring diagrams. CLEAR the DTC. TEST the system for normal operation.
AE8: CHECK THE CIRCUIT BETWEEN PIN 1 OF THE ACCC RELAY BASE AND THE POWER DISTRIBUTION FUSE BOX FOR SHORT TO
GROUND
Remove Fuse 36.
Measure the resistance between the ACCC relay base pin 1 and GROUND.
Is the resistance less than 10,000 ohms?
Yes
REPAIR the short circuit. For additional information, refer to wiring diagrams. CLEAR the DTC. TEST the system for
normal operation.
No
GO to AE9
.
AE9: CHECK THE ACCC RELAY BASE FOR BATTERY VOLTAGE AT PIN 1
Refit Fuse 36.
Turn the ignition switch to the ON position.
Measure the voltage between ACCC relay base pin 1 and GROUND.
Is the voltage greater than 10 volts?
Yes
GO to AE10
.
No
Check/replace fuses. REPAIR the circuit between the relay base and the battery power bus 2. For additional
information, refer to wiring diagrams. CLEAR the DTC. TEST the system for normal operation.
(This circuit includes the EMS relay, and Fuses 9 and 31)
AE10: CHECK THE CIRCUIT BETWEEN THE ECM AND THE ACCC RELAY BASE FOR CONTINUITY
Remove the ACCC relay.
Measure the resistance between the ECM electrical connector EN16 pin 34 (BG) and ACCC relay base pin 2.
1
1
Is the resistance less than 5 ohms?
Yes
GO to AE11
.
No
REPAIR the circuit. For additional information, refer to wiring diagrams. CLEAR the DTC. TEST the system for normal
operation.
AE11: CHECK THE CIRCUIT BETWEEN THE ECM AND THE ACCC RELAY BASE FOR SHORT TO BATTERY
Check for a voltage between the ECM electrical connector EN16 pin 34 (BG) and GROUND.
Is the voltage greater than 1 volt?
Yes
REPAIR the short circuit. For additional information, refer to wiring diagrams. CLEAR the DTC. TEST the system for
normal operation.
No
GO to AE12
.
AE12: CHECK THE CIRCUIT BETWEEN THE ECM AND THE ACCC RELAY BASE FOR SHORT TO GROUND
Measure the resistance between the ECM electrical connector EN16 pin 34 (BG) and GROUND.
Is the resistance less than 10,000 ohms?
Yes
REPAIR the short circuit. For additional information, refer to wiring diagrams. CLEAR the DTC. TEST the system for
normal operation.
No
INSTALL a new ACCC relay. For additional information, refer to the electrical guide. CLEAR the DTC. TEST the system
for normal operation.
Published: 11-May-2011
Electronic Engine Controls - 2.0L NA V6 - AJV6/2.5L NA V6 - AJV6/3.0L NA V6 - AJ27 -
Powertrain Control Module (PCM) Long Drive Cycle Self-Test
General Procedures
WARNING: Where possible, all road tests should be on well surfaced and dry roads. Always comply with speed limits and local traffic
regulations.
• NOTE: This procedure is an overcheck only. If fault codes are found, interrogation of the relevant system must be carried out and claimed
against.
• NOTE: The vehicle must exceed 50mph (80 km/h) during the road test.
1. Connect the diagnostic equipment to the vehicle.
2. Follow on screen prompts and check for engine management fault
codes.
3. Clear the fault codes following the on screen procedure.
4. Disconnect the diagnostic equipment from the vehicle.
5. NOTE: Make sure cruise control is not engaged.
Make sure the engine temperature is above 60 ºC (140 ºF).
Carry out a road test and perform the following operations.
1. Accelerate to 55 mph (88 km/h) in 5th gear and cruise for 2
minutes with the engine speed at or above 1800rpm.
2. Lift off the throttle and allow the vehicle to decelerate until
the engine speed is less than 1000 rpm.
3. Stop the vehicle.
4. Release brake, allow the vehicle to move with no throttle for 1
minute.
5. Road test is now complete.
6. Connect the diagnostic equipment to the vehicle.
7. NOTE: If fault codes are found, interrogation of the relevant system
must be carried out and claimed against.
Follow on screen prompts and check for engine management fault codes.
8. Disconnect the diagnostic equipment from the vehicle.
Published: 11-May-2011
Electronic Engine Controls - 2.0L NA V6 - AJV6/2.5L NA V6 - AJV6/3.0L NA V6 - AJ27 -
Powertrain Control Module (PCM) Short Drive Cycle Self-Test
General Procedures
• NOTE: This procedure is an overcheck only. If fault codes are found, interrogation of the relevant system must be carried out and claimed
against.
1. Connect the diagnostic equipment to the vehicle.
2. Follow on screen prompts and check for engine management fault
codes.
3. Clear the fault codes following the on screen procedure.
4. Start the engine.
Allow the engine to idle for 30 seconds.
Raise the engine speed to 1500 rpm and hold for 3 minutes until a
temperature of 70ºC (158 ºF) is achieved.
Allow the engine to idle for 30 seconds.
Switch off the engine.
5. NOTE: If fault codes are found, interrogation of the relevant system
must be carried out and claimed against.
Follow on screen prompts and check for engine management fault codes.
6. Disconnect the diagnostic equipment from the vehicle.
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст