Symptom Chart: Notes
The instrument cluster contains a self-diagnostic mode known as engineering test mode. This can be used to show the status of the instrument cluster inputs as well as a number of other useful features
When in the engineering test mode, the message centre displays internal data that can be cycled through. All functions except the message centre display will continue to operate normally unless otherwise noted
This document is to be used in conjunction with the instrument cluster engineering test mode (see relevant section within this document) and the integrated diagnostic system facility; this does not supersede or replace the integrated diagnostic system facility
Go directly to the 'Area of Concern/Symptom' that indicates the customer concern(s) and perform the actions described within the relevant section(s):
| AREA OF CONCERN/SYMPTOM | DIAGNOSTIC REF. NO. | ACTIONS | NOTES |
|---|---|---|---|
| Warning lights | A-1 | Perform instrument cluster Self-Diagnostic Mode/ETM test 3. | When this test is ended the warning lamps currently required to be 'ON' will remain illuminated. |
| Multiple warning lights 'ON' | B-1 | Check with IDS for DTCs related to identified vehicle system(s). | . |
| . | B-2 | Check instrument cluster battery and ignition wiring - refer to circuit diagrams. | Specifically check continuity of Standard Corporate Protocol (SCP) and Controller Area Network (CAN) lines. |
| . | B-3 | Check instrument cluster grounds. | . |
| . | B-4 | Check fuses in battery junction box. | . |
| . | B-5 | Check for harness traps in facia. | . |
| . | B-6 | Perform instrument cluster Self-Diagnostic Mode/ETM test 3. | Frost/ice warning illuminated in mixed red and amber; therefore color differs from other warning lamps. When this test is ended, warning lamps currently required to be 'ON' will remain illuminated. |
| . | B-7 | Check for open circuit/shorts in wiring to related warning lamp trigger (module, sensor, switch). | . |
| Specific warning lamp 'ON' | C-1 | Check with IDS for DTCs related to identified vehicle system. | . |
| . | C-2 | Check for open circuit/shorts in wiring related to warning lamp circuit (module, sensor, switch) where appropriate. | . |
| . | C-3 | Perform cluster Self-Diagnostic Mode/ETM test 3. | Frost/ice warning illuminated in mixed red and amber; therefore color differs from other warning lamps. When this test is ended, warning lamps currently required to be 'ON' will remain illuminated. |
| . | C-4 | Check the specific vehicle system indicated by the warning lamp illuminated? | What is the warning lamp telling me? Does this check out with the DTC logged by the system indicating the fault? |
| Fuel gauge operation | D-1 | Perform Self-Diagnostic Mode/ETM test 21 to establish if fuel level input to cluster is out of range or invalid. | 0 - 9 = short circuit; gauge will show empty. 10 - 254 = normal range. 255 = open circuit; gauge will show empty. - = missing signal; gauge will show empty. |
| . | D-2 | Check gauge function versus Self-Diagnostic Mode/ETM test 21. | 0 = empty, 254 = full. 255 = invalid; gauge will show empty. |
| . | D-3 | Check for open circuit/shorts in wiring between the Fuel Delivery Module, Jet Pump Module and Rear Electronic Module (REM). | . |
| Fuel gauge reading | E-1 | Check gauge position versus Self-Diagnostic Mode/ETM test 21. | 0 = empty to 254 = full (255 invalid; gauge will show empty). Other values percentage of above range e.g. 127 = half. |
| . | E-2 | Calculate percentage fuel level from figure obtained from Self-Diagnostic Mode/ETM test 21 and compare to IDS vehicle fuel percentage test. | Self-Diagnostic Mode fuel level percentage can be calculated as follows: Value from Self-Diagnostic Mode test 26 ÷ 254 x 100 = % shown on gauge. |
| . | E-3 | Monitor value of Self-Diagnostic Mode test/ETM test 21 (during test drive) to establish if input drops out of range. | 0 - 9 = short circuit; gauge will show empty. 10 - 254 = normal range. 255 = open circuit; gauge will show empty. - = missing signal; gauge will show empty. |
| . | E-4 | Monitor 'FUEL LEVEL' in IDS data logger (during test drive) to correlate gauge position to vehicle reported fuel level. | Gauge function is damped so will not follow rapidly changing Fuel Delivery Module values. |
| Speedometer operation | H-1 | Monitor Self-Diagnostic Mode/ETM test 19 (during test drive) check to establish if vehicle speed input to cluster is out of range or invalid. | Display speed input in 1/10 mile/h, no decimal point shown, and is compensated for tire size etc. Displays -- or INV if message is not received or if received data is invalid. |
| Speedometer reading | I-1 | During test drive compare speedometer position to Self-Diagnostic Mode/ETM test 19, displayed value. | Self-Diagnostic Mode displayed speed figure will be approx 3% higher than speed indicated by speedometer. Allowed tolerance - minus nothing/+ 10% + 2.5 mile/h. |
| . | I-2 | Monitor Self-Diagnostic Mode/ETM test 19 (during test drive) to establish if vehicle speed input to cluster drops out of range or is invalid. | Displays -- if message is not received or if received data is invalid for two seconds or more. |
| . | I-3 | Check that installed wheels and tires are standard Jaguar fitment. Confirm wheel size in IDS, 'ADD REMOVE ACCESSORY' section. | Non standard wheels and tires may lead to speed indication inaccuracies. Incorrectly set wheel size will result in speed indication inaccuracies. Trip and odometer distance accumulation will also be incorrect. |
| Tachometer operation | J-1 | Perform Self-Diagnostic Mode/ETM test 20 to establish if vehicle RPM input to cluster out of range or invalid. | Displays -- or INV if message is not received or if received data is invalid. |
| Tachometer reading | K-1 | Check tachometer position versus Self-Diagnostic Mode/ETM test 20, displayed value. | Tachometer accuracy +/- 100 RPM. |
| . | K-2 | Monitor 'ENGINE RPM' in IDS data logger at constant engine RPM to compare tachometer indicated engine RPM to engine RPM reported by Engine Control Module (ECM). | Tachometer accuracy +/- 100 RPM. |
| . | K-3 | Monitor Self-Diagnostic Mode test/ETM test 20, (during test drive) to establish if input to cluster drops out of range or is invalid. | Displays -- or INV if message is not received or if received data is invalid. |
| Gauge judder | L-1 | Perform Self-Diagnostic Mode test/ETM test 2, to prove out smooth gauge operation. | . |
| Gauge noise | M-1 | Perform vehicle road test. Gauges should not be audible during operation in drive cycle. | . |
| . | M-2 | Benchmark noise against non-complaint vehicle. | . |
| Trip (fuel) computer | N-1 | Check for consistent display (during test drive) of valid 'Rolling Odometer' count in Self-Diagnostic Mode/ETM test 24. | Displays --, INV or 255 if message is not received, or if received data is invalid. |
| . | N-2 | Check that installed wheels and tires are standard Jaguar fit. Confirm fitted wheel size in IDS, 'ADD REMOVE ACCESSORY' section. | Non standard wheels and tires or incorrectly set wheel size may lead to Odometer increment inaccuracies. This will impact the distance accumulators, which in turn affects the rolling average, fuel economy and range values. Trip distance accumulation will also be incorrect. |
| . | N-3 | Consider noting odometer value and resetting fuel computer system. Advise customer to conduct brim-to-brim fuel tank test. Use collected information to determine if system accurate. | . |
| Column adjust | O-1 | Check with IDS for DTCs related to powered column system. | . |
| O-2 | Check cluster battery supply voltage and ground resistance. Check for loose connections. | . | |
| O-3 | Check power column motors supply voltage. | . | |
| O-4 | Check power column switch for physical damage. | . | |
| Passive Anti-Theft System (PATS) indicator | P-1 | Check for three second prove out when vehicle start button is pressed. | . |
| . | P-2 | Check for loose connections/wiring continuity. | . |
| . | P-3 | Check ignition switch for physical damage. | . |
| Cluster illumination | Q-1 | Check for loose connections/wiring continuity. | . |
| . | Q-2 | Check dimmer switch operation. | . |
| Cluster backlight operation | R-1 | Is the backlight on other components inoperative. | . |
| . | R-2 | Check dimmer switch operation. | . |
| . | R-3 | Check for loose connections/wiring continuity. | . |
| Chime/tone operation | S-1 | Check vehicle configuration. | . |
| . | S-2 | Utilize lights ON, ignition OFF, door open warning to verify chime operation. | . |
| . | S-3 | Check appropriate sensing circuit. | . |
| Continuous chime/tone | T-1 | Check appropriate sensing circuit. | . |
| Unexpected chime operation | U-1 | Check vehicle configuration. | . |
| Message centre display illumination | V-1 | Is the backlight 'ON' and other components dim? | . |
| . | V-2 | Does the lighting level of other components change when dimmer adjusted? | . |
| Message centre display issue | W-1 | Perform Self-Diagnostic Mode test/ETM tests 5 to 9, to prove out LCD display function. | . |
| Message centre missing lines | X-1 | Perform Self-Diagnostic Mode test/ETM tests 5 to 9, to prove out LCD display function. | . |
| Message centre incorrect message | Y-1 | What is the message? | . |
| . | Y-2 | Check for open circuit/shorts in wiring to related warning light trigger (module, sensor, switch). | . |
| Cluster/connectivity | Z-1 | Check cluster battery and ignition wiring. | . |
| . | Z-2 | Check cluster grounds. | . |
| . | Z-3 | Disconnect/reconnect cluster. | . |
| . | Z-4 | Attempt to enter Self-Diagnostic Mode/ETM to prove cluster response to inputs. | . |
| No crank | AA-1 | Check with IDS for presence of related DTCs. | . |
| . | AA-2 | Is there a Passive Anti-Theft System (PATS) flash code? | . |
| . | AA-3 | Does the vehicle crank with the other passive key? | . |
| . | AA-4 | Ensure only one key is in the vehicle, try both keys in the Starter Control Unit (SCU). | If this test starts the vehicle this tends to indicate an issue with the keyless vehicle module. |
| . | AA-5 | Tried new key? | |
| . | AA-6 | Check battery voltage. | . |
| . | AA-7 | Diagnose non-start condition with IDS. | . |
| . | AA-8 | Attempt PATS key erase and re-learn. | Ensure keys are erased from current cluster if replacing cluster. |
| Crank but no-start | AB-1 | Diagnose non-start condition with IDS. | Not usually caused by cluster issue. |
| Incorrect configuration | AC-1 | Attempt to configure cluster. | . |
| . | AC-2 | Ensure battery voltage is maintained above 12.5 volts if cluster re-configured. | . |
- If the cause is not visually evident, verify the symptom and refer to the self-diagnostic mode