Transmission Cooling (Description and Operation), Transmission Cooling (Description and Operation).
Inspection and Verification
1. Verify the customer concern by operating the system.
2. Visually inspect for obvious signs of damage and system integrity.
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to
the next step.
4. If the cause is not visually evident, verify the symptom and refer to the Symptom Chart, alternatively check for
Diagnostic Trouble Codes (DTCs) and refer to the DTC Index.
Symptom Chart
Condition Possible Causes Action Over heating of the
automatic
transmission Obstruction in the automatic
transmission fluid cooler Flush out the automatic transmission fluid cooler with new
automatic transmission fluid. If the flushing is unsuccessful,
install a new transmission fluid cooler. Over heating of the
automatic
transmission Obstruction in the automatic
transmission fluid tubes Flush out the automatic transmission fluid cooler tubes with new
automatic transmission fluid. If the flushing is unsuccessful install
new automatic transmission fluid cooler tubes. Loss of automatic
transmission fluid Connections to the automatic
transmission and the automatic
transmission fluid cooler Check the integrity of the tubes, connections and seals. Check the
torque of the tube fixings. Loss of automatic
transmission fluid Leak at oil cooler
Check the integrity of tubes, connections and seals. Check the torque of the tube fixings. Mechanical
Feed and return tubes
Connections to the automatic transmission and the automatic transmission fluid cooler
Automatic transmission fluid level Visual Inspection
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Message Other Warnings Reason Action in LCD. system and the tire pressures
cannot be monitored. ENGINE TEMPERATURE
HIGH Amber warning triangle
illuminated in LCD at temperatures of between
118.0°C (244.4°F) and
119.3°C (246.8°F). Engine coolant temperature has
exceeded threshold for normal
operation.
Stop vehicle and allow engine
to idle for 5 minutes. Switch off
engine and allow to stand for
not less than 10 minutes. Check
coolant level.
If message re-appears,
investigate coolant system for
leakage. ENGINE
OVERHEATING Red warning triangle
illuminated in LCD at temperatures of 119.4°C
(247°F) or above. Engine coolant temperature has
exceeded threshold for normal engine
operation.
Stop vehicle and allow engine
to idle for 5 minutes. Switch off
engine and allow to stand for
not less than 10 minutes. Check
coolant level.
If message re-appears,
investigate coolant system for
leakage. ENGINE OIL
PRESSURE LOW Red warning triangle
illuminated in LCD. Engine oil pressure has fallen below the
threshold for normal operation. Stop the engine immediately. Check
engine oil level. If oil level correct, do
not restart engine until oil pressure
loss has been identified and corrected. RESTRICTED
PERFORMANCE Red or Amber warning
triangle illuminated in LCD depending on nature of power loss. A fault has occurred which has reduced
engine power output. Investigate cause of engine power
loss. Interrogate control modules for
faults and diagnose using an approved Jaguar Diagnostic System. ENGINE SYSTEMS
FAULT
MIL (malfunction
indicator lamp)
illuminated for
certain faults.
Red or Amber
warning triangle
illuminated in LCD.
A fault has occurred in the
engine management system or, if
the MIL is illuminated, an emissions related fault is present
which has been detected by
the On-Board Diagnostic
systems in the ECM and TCM. A fault has occurred with the
start/stop switch.
Investigate cause of fault.
Interrogate ECM and TCM for faults and diagnose using an
approved Jaguar Diagnostic
System.
Check start/stop switch for
correct operation or short
circuits. CHECK FUEL
FILLER CAP
(NAS Vehicles Only)
Red warning triangle
illuminated in LCD. The Diagnostic Monitoring Tank Leakage
(DMTL) system has detected fuel filler
cap has not been correctly installed or
the system has a leak. Check fuel filler cap to ensure is it is
correctly installed and secure or check
the fuel system for leakage. ENGINE TEMPERATURE
INDICATION
FAULT Red warning triangle
illuminated LCD. A fault has occurred in the engine
management system and the engine
temperature signal is no longer being
received. Investigate cause of engine
temperature failure. Interrogate ECM for faults and diagnose using an approved Jaguar Diagnostic System. PLEASE WAIT
COLD START IN
PROGRESS Amber warning triangle
illuminated LCD. Message appears after start/stop switch
is pressed. Glow plugs are warming up,
message will appear for up to 12
seconds dependant on ambient
temperature. Engine will crank once message is switched off. None GEARBOX FAULT
Battery symbol and amber
warning triangle illuminated
in LCD. TCM has detected a fault in the Investigate transmission fault. transmission. Transmission may default
to 'limp home' mode and only allow
limited operation of forward gears and
reverse. Interrogate TCM and diagnose fault using an approved Jaguar Diagnostic
System. BATTERY NOT
CHARGING Red warning triangle
illuminated in LCD. Charge output from generator not
detected by ECM. Investigate cause of generator failure. OVER 120 km/h
(GULF States Only)
Red text illuminated
in LCD. Vehicle has exceeded the preset 120
km/h speed value. Reduce vehicle speed. DPF FULL SEE
HANDBOOK Amber or Red warning
triangle illuminated LCD. ECM has detected diesel particulate Drive the vehicle as described in the filter is becoming blocked or has become
blocked. owners handbook or the workshop
manual to clean the filter. COOLANT LEVEL
LOW Red warning triangle
illuminated in LCD. Coolant level in expansion tank has
fallen below minimum level.
Stop vehicle and allow engine
to idle for 5 minutes. Switch off
engine and allow to stand for
not less than 10 minutes. Check
coolant level and replenish
