Engine Emission Control - Diagnostic Procedures
- Verify the customer concern by operating the system.
- Visually inspect for obvious signs of mechanical or electrical damage.
- If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
- If the concern is not visually evident, refer to «Symptom Chart»(ref-311325-S42864677452009032500000) .
| Condition | Possible Source | Action |
|---|---|---|
| Diagnostic Trouble Code (DTC) P0400 indicates exhaust gas recirculation (EGR) system flow malfunction. | Exhaust manifold to EGR valve pipe tube blocked. Exhaust manifold to EGR valve pipe tube cracked. EGR valve stuck closed. EGR valve stuck open. EGR valve loose. Fuse 37 in the front power distribution box (FPDB). Relay 5 in the FPDB Electrical harness. Electrical connector(s) | GO to Pinpoint Test A. |
| Diagnostic Trouble Code (DTC) P0405 indicates exhaust gas recirculation (EGR) valve malfunction, short to battery/12volts (V). | Electrical harness. Electrical connector(s). Engine control module (ECM). EGR valve. | GO to Pinpoint Test B. |
| Diagnostic Trouble Code (DTC) P0406 indicates exhaust gas recirculation (EGR) valve malfunction, short to ground/open circuit. | Electrical harness. Electrical connector(s). ECM. EGR valve. | GO to Pinpoint Test C. |
Symptom Chart
Pinpoint Test A: Diagnostic Trouble Code (DTC) P0400 indicates exhaust gas recirculation (EGR) system flow malfunction.
Pinpoint Test A
A1
CHECK EGR VALVE FOR CORRECT FITMENT TO INTAKE MANIFOLD
- Check the EGR valve retaining bolts for correct torque. «Exhaust Gas Recirculation (EGR) Valve»(ref-311325-S31492673762009032500000) .
Was the EGR valve fitted correctly?
A2
CHECK EXHAUST GAS RECIRCULATION (EGR) VALVE TO MANIFOLD/INTAKE ELBOW GASKET FOR CORRECT SEAL
- Visually inspect the gasket for external damage.
Is the gasket damaged?
YES INSTALL a new gasket, make sure valve is seated correctly and retaining bolts installed to the correct torque. «Exhaust Gas Recirculation (EGR) Valve»(ref-311325-S31492673762009032500000) . CLEAR DTC. To validate fix drive vehicle between 30 mph (48 kph) and 40 mph (64 kph). Allow vehicle to idle for 2 minutes.
NO Go to step 3 . → A3
A3
CHECK FOR EXHAUST MANIFOLD TO EGR VALVE TUBE FOR DAMAGE or BLOCKAGES
- Visually inspect the exhaust manifold to EGR valve tube.
Is the tube damaged or blocked?
YES If the tube is damaged INSTALL a new tube. «Exhaust Manifold to Exhaust Gas Recirculation (EGR) Valve Tube - Removal and Installation»(ref-311325-S22673481612009032500000) .CLEAR the DTC. To validate fix drive vehicle between 30 mph (48 kph) and 40 mph (64 kph). Allow vehicle to idle for 2 minutes. If the tube is blocked, unblock the tube. CLEAR DTC. TEST the system for normal operation.
NO Go to step 4 . → A4
A4
CHECK FOR POWER SUPPLY TO EGR VALVE
- Disconnect EGR valve electrical connector PI 15
- TURN ignition switch to the ON position
- MEASURE the voltage at PI 15 pin 2 (GU)
- Is the voltage less than 10 volts
A5
CHECK FUSE 37 IN THE FRONT POWER DISTRIBUTION BOX (FPDB)
- Check the fuse.
Is the fuse OK?
A6
CHECK HARNESS BETWEEN FPDB AND EGR FOR SHORT TO GROUND
- Disconnect the EGR valve electrical connector PI 15.
- CHECK the resistance between PI 15 pin 2 (GU) and ground.
Is the resistance less than 10,000 Ohms?
YES REPAIR the circuit between the EGR valve and FPDB. INSTALL a new fuse. CLEAR DTC. To validate fix drive vehicle between 30 mph (48 kph) and 40 mph (64 kph). Allow vehicle to idle for 2 minutes.
NO INSTALL a new fuse. CLEAR DTC. To validate fix drive vehicle between 30 mph (48 kph) and 40 mph (64 kph). Allow vehicle to idle for 2 minutes.
A7
CHECK FOR BATTERY VOLTAGE AT FPDB
- CHECK for voltage at FPDB electrical connector FH 32 pin 43 (GU).
Is the voltage less than 10 volts?
YES REPAIR the circuit between FPDB electrical connector FH 32 pin 43 (GU) and FPDB relay 5.
NO REPAIR the circuit between FPDB electrical connector FH 32 pin 43 (GU) and EGR valve electrical connector PI 15 pin 2 (GU). CLEAR DTC. To validate fix drive vehicle between 30 mph (48 kph) and 40 mph (64 kph). Allow vehicle to idle for 2 minutes.
A8
CHECK FOR POWER SUPPLY TO EGR VALVE
- Disconnect EGR valve electrical connector PI 15
- MEASURE the voltage at PI 15 pin 5 (GU)
Is the voltage less than 10 volts?
YES REPAIR the circuit between PI 15 pin 5 (GU) and splice PIS 15. CLEAR DTC. TEST the system for normal operation.
NO INSTALL a new EGR valve. CLEAR DTC. To validate fix drive vehicle between 30 mph (48 kph) and 40 mph (64 kph). Allow vehicle to idle for 2 minutes.
Pinpoint Test B: Diagnostic Trouble Code (DTC) P0405 indicates exhaust gas recirculation (EGR) valve malfunction, short to battery/12volts
Pinpoint Test B
B1
CHECK FOR A SHORT TO BATTERY VOLTAGE
- Disconnect the EGR valve electrical connectors PI 15.
- TURN ignition switch to the ON position.
- Measure the voltage at PI 15 pin 4 (YU).
Is the voltage more than 1 volt?
B2
CHECK FOR A SHORT TO BATTERY VOLTAGE IN ECM
- Disconnect ECM electrical connector PI 1.
- Measure the voltage at PI 15 pin 4 (YU).
Is the voltage more than 1 volt?
YES REPAIR circuit between the PI 1 pin 57 (YU) and the EGR valve electrical connector PI 15 pin 4 (YU). CLEAR DTC. To validate fix drive vehicle between 30 mph (48 kph) and 40 mph (64 kph). Allow vehicle to idle for 2 minutes.
NO INSTALL a new ECM. Refer to «Electronic Engine Controls»(ref-311294) article. CLEAR DTC. To validate fix drive vehicle between 30 mph (48 kph) and 40 mph (64 kph). Allow vehicle to idle for 2 minutes.
B3
CHECK FOR A SHORT TO BATTERY VOLTAGE
- Measure the voltage at PI 15 pin 1 (YG).
Is the voltage more than 1 volt?
B4
CHECK FOR A SHORT TO BATTERY VOLTAGE IN ECM
- Disconnect ECM electrical connector PI 1.
- Measure the voltage at PI 15 pin 1 (YG).
Is the voltage more than 1 volt?
YES REPAIR circuit between the PI 1 pin 58 (YG) and the EGR valve electrical connector PI 15 pin 1 (YG). CLEAR DTC. To validate fix drive vehicle between 30 mph (48 kph) and 40 mph (64 kph). Allow vehicle to idle for 2 minutes.
NO INSTALL a new ECM. Refer to «Electronic Engine Controls»(ref-311294) article. CLEAR DTC. To validate fix drive vehicle between 30 mph (48 kph) and 40 mph (64 kph). Allow vehicle to idle for 2 minutes.
B5
CHECK FOR A SHORT TO BATTERY VOLTAGE
- Measure the voltage at PI 15 pin 6 (YR).
Is the voltage more than 1 Volt?
B6
CHECK FOR A SHORT TO BATTERY VOLTAGE IN ECM
- Disconnect ECM electrical connector PI 1.
- Measure the voltage at PI 15 pin 6 (YR).
Is the voltage more than 1 volt?
YES REPAIR circuit between the PI 1 pin 59 (YR) and the EGR valve electrical connector PI 15 pin 6 (YR). CLEAR DTC. To validate fix drive vehicle between 30 mph (48 kph) and 40 mph (64 kph). Allow vehicle to idle for 2 minutes.
NO INSTALL a new ECM. Refer to «Electronic Engine Controls»(ref-311294) article. CLEAR DTC. To validate fix drive vehicle between 30 mph (48 kph) and 40 mph (64 kph). Allow vehicle to idle for 2 minutes.
B7
CHECK FOR A SHORT TO BATTERY VOLTAGE
- Measure the voltage at PI 15 pin 3 (YU).
Is the voltage more than 1 Volt?
YES Go to step 8 . → B8
NO INSTALL a new EGR valve. CLEAR DTC. To validate fix drive vehicle between 30 mph (48 kph) and 40 mph (64 kph). Allow vehicle to idle for 2 minutes.
B8
CHECK FOR A SHORT TO BATTERY VOLTAGE IN ECM
- Disconnect ECM electrical connector PI 1.
- Measure the voltage at PI 15 pin 3 (YU).
Is the voltage more than 1 volt?
YES REPAIR circuit between the PI 1 pin 60 (YU) and the EGR valve electrical connector PI 15 pin 3 (YU). CLEAR DTC. To validate fix drive vehicle between 30 mph (48 kph) and 40 mph (64 kph). Allow vehicle to idle for 2 minutes.
NO INSTALL a new ECM. Refer to «Electronic Engine Controls»(ref-311294) article. CLEAR DTC. To validate fix drive vehicle between 30 mph (48 kph) and 40 mph (64 kph). Allow vehicle to idle for 2 minutes.
Pinpoint Test C: Diagnostic Trouble Code (DTC) P0406 indicates exhaust gas recirculation (EGR) valve malfunction, short to ground/open circuit.
Pinpoint Test C
C1
CHECK FOR A SHORT TO GROUND
- Disconnect the EGR valve electrical connectors PI 15.
- Disconnect the engine control module (ECM) electrical connectors PI 1.
- Measure the resistance between the EGR valve electrical connector PI 15 pin 4 (YU) and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR the circuit between EGR valve electrical connector PI 15 pin 4 (YU) and ECM electrical connector PI 1 pin 57 (YU). CLEAR DTC. To validate fix drive vehicle between 30 mph (48 kph) and 40 mph (64 kph). Allow vehicle to idle for 2 minutes.
NO Go to step 2 . → C2
C2
CHECK FOR AN OPEN CIRCUIT
- Measure the resistance between the EGR valve electrical connector PI 15 pin 4 (YU) and ECM electrical connector PI 1 pin 57 (YU).
Is the resistance more than 5.0 ohms?
YES REPAIR the circuit between EGR valve electrical connector PI 15 pin 4 (YU) and ECM electrical connector PI 1 pin 57 (YU). CLEAR DTC. To validate fix drive vehicle between 30 mph (48 kph) and 40 mph (64 kph). Allow vehicle to idle for 2 minutes.
NO Go to step 3 . → C3
C3
CHECK FOR A SHORT TO GROUND
- Measure the resistance between the EGR valve electrical connector PI 15 pin 1 (YG) and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR the circuit between EGR valve electrical connector PI 15 pin 1 (YG) and ECM electrical connector PI 1 pin 58 (YG). CLEAR DTC. To validate fix drive vehicle between 30 mph (48 kph) and 40 mph (64 kph). Allow vehicle to idle for 2 minutes.
NO Go to step 4 . → C4
C4
CHECK FOR AN OPEN CIRCUIT
- Measure the resistance between the EGR valve electrical connector PI 15 pin 1 (YG) and ECM electrical connector PI 1 pin 58 (YG).
Is the resistance more than 5.0 Ohms?
YES REPAIR the circuit between EGR valve electrical connector PI 15 pin 1 (YG) and ECM electrical connector PI 1 pin 58 (YG). CLEAR DTC. To validate fix drive vehicle between 30 mph (48 kph) and 40 mph (64 kph). Allow vehicle to idle for 2 minutes.
NO Go to step 5 . → C5
C5
CHECK FOR A SHORT TO GROUND
- Measure the resistance between the EGR valve electrical connector PI 15 pin 6 (YR) and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR the circuit between EGR valve electrical connector PI 15 pin 6 (YR) and ECM electrical connector PI 1 pin 59 (YR). CLEAR DTC. TEST the system for normal operation.
NO Go to step 6 . → C6
C6
CHECK FOR AN OPEN CIRCUIT
- Measure the resistance between the EGR valve electrical connector PI 15 pin 6 (YR) and ECM electrical connector PI 1 pin 59 (YR).
Is the resistance more than 5.0 Ohms?
YES REPAIR the circuit between EGR valve electrical connector PI 15 pin 6 (YR) and ECM electrical connector PI 1 pin 59 (YR). CLEAR DTC. TEST the system for normal operation.
NO Go to step 7 . → C7
C7
CHECK FOR A SHORT TO GROUND
- Measure the resistance between the EGR valve electrical connector PI 15 pin 3 (YU) and GROUND.
Is the resistance less than 10,000 ohms?
YES REPAIR the circuit between EGR valve electrical connector PI 15 pin 3 (YU) and ECM electrical connector PI 1 pin 60 (YU). CLEAR DTC. TEST the system for normal operation.
NO Go to step 8 . → C8
C8
CHECK FOR AN OPEN CIRCUIT
- Measure the resistance between the EGR valve electrical connector PI 15 pin 3 (Yu) and ECM electrical connector PI 1 pin 60 (YU).
Is the resistance more than 5.0 Ohms?
YES REPAIR the circuit between EGR valve electrical connector PI 15 pin 3 (YU) and ECM electrical connector PI 1 pin 60 (YU). CLEAR DTC. TEST the system for normal operation.
NO INSTALL a new EGR valve. CLEAR DTC. TEST the system for normal operation. If DTC is repeated INSTALL a new ECM. CLEAR DTC. TEST the system for normal operation.
Inspection and verification
- Verify the customer concern.
- Visually inspect for obvious signs of mechanical or electrical damage. Visual Inspection Chart Mechanical Electrical Engine breather hoses Cyclone separator Exhaust gas recirculation (EGR) pipes (check for cracks) EGR valve Fuses Wiring harness Loose or corroded electrical connectors Sensor(s) Stepper motor(s) Secondary air injection pump Secondary air injection control valve Engine control module (ECM)
- If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
- If the cause is not visually evident use the Jaguar approved diagnostic system or a scan tool to retrieve the fault codes before proceeding to the diagnostic trouble code (DTC) Index.
| Symptom (general) | Symptom (specific) | Possible source | Action |
|---|---|---|---|
| Non-Start | Engine cranks, but does not fire | Engine breather system disconnected/restricted | Check the engine breather system hoses, separator, etc. Rectify as necessary. |
| Difficult to start | Difficult to start cold | Exhaust gas recirculation (EGR) valve stuck open | Check the EGR valve, See Exhaust Gas Recirculation (EGR) Valve . Check the pipe work. |
| Engine stalls | Engine stalls soon after start | Breather system disconnected/restricted | Check the engine breather system hoses, separator, etc. Rectify as necessary. |
| Engine stops/stalls | EGR valve stuck open | Check the EGR valve. See Exhaust Gas Recirculation (EGR) Valve . | |
| Rough running | Poor idle quality | EGR valve stuck open | Check the EGR valve. See Exhaust Gas Recirculation (EGR) Valve . |
| Poor driveability | Engine hesitates/poor acceleration | EGR valve stuck open | Check the EGR valve. See Exhaust Gas Recirculation (EGR) Valve . |
| Poor throttle response | Breather system disconnected/restricted | Check the engine breather system hoses, separator, etc. Rectify as necessary. | |
| Excessive | Fuel consumption Black smoke Emissions | EGR valve stuck open EGR system not operating Crankcase ventilation system restricted | Check the EGR valve. See Exhaust Gas Recirculation (EGR) Valve . For EGR valve circuit tests. Refer to Pinpoint Test A . Check the engine breather system hoses, separator, etc. Rectify as necessary. |
| Noisy | Loud 'ticking' noise with engine running | EGR pipes cracked | Inspect the EGR pipes, paying particular attention to the ribbed sections. Replace as necessary. |
| Oil leakage | Engine oil leaks | Crankcase ventilation system restricted | Check the engine breather system hoses, separator, etc. Rectify as necessary. |
Symptom Chart
DTC index
Note. Generic scan tools may not read the codes listed, or may read only 5-digit codes. Match the 5 digits from the scan tool to the first 5 digits of the 7-digit code listed to identify the fault (the last 2 digits give extra information read by the manufacturer-approved diagnostic system).
Note. For a full list of DTCs. Refer to Electronic Engine Controls - VIN Range: N52207->N99999 or and Refer to Electronic Engine Controls - VIN Range: N52207->N99999 article.
| DTC | Description | Possible causes | Action |
|---|---|---|---|
| P040100 | EGR flow insufficient | EGR valve incorrectly fitted or loose EGR valve stuck closed, blocked EGR pipe blocked EGR valve mechanical failure | Check the installation of the EGR valve. See Exhaust Gas Recirculation (EGR) Valve . Check the EGR pipe work. |
| P041300 | Secondary air injection control valve circuit | Secondary air injection control valve control circuit: short circuit to power | For Secondary air injection control valve circuit tests, Refer to Pinpoint Test D . |
| P041400 | Secondary air injection control valve circuit | Secondary air injection control valve control circuit: short circuit to ground Secondary air injection control valve control circuit: high resistance | For Secondary air injection control valve circuit tests, Refer to Pinpoint Test D . |
| P048900 | EGR control circuit low | EGR valve power supply circuit: short circuit to ground EGR valve power supply circuit: high resistance | For EGR stepper circuit tests, Refer to Pinpoint Test A . |
| P049000 | EGR control circuit high | EGR valve to ECM drive circuit: short circuit to power | For EGR stepper circuit tests, Refer to Pinpoint Test A . |
| P243100 | Secondary air injection system air flow/pressure sensor circuit range/performance | Secondary air injection manifold pressure (MAP) sensor performance | For Secondary air injection MAP sensor tests, Refer to Pinpoint Test C . |
| P243200 | Secondary air injection system air flow/pressure sensor circuit low | Secondary air injection MAP sensor circuit: short circuit to ground Secondary air injection MAP sensor circuit: high resistance | For Secondary air injection MAP sensor tests, Refer to Pinpoint Test C . |
| P243300 | Secondary air injection system air flow/pressure sensor circuit high | Secondary air injection MAP sensor circuit: short circuit to power | For Secondary air injection MAP sensor tests, Refer to Pinpoint Test C . |
| P244400 | Secondary air injection pump stuck ON | Secondary air injection pump control circuit: short circuit to ground | For Secondary air injection pump circuit tests, Refer to Pinpoint Test B . |
| P244500 | Secondary air injection pump stuck OFF | Secondary air injection pump control circuit: short circuit to power | For Secondary air injection pump circuit tests, Refer to Pinpoint Test B . |
Pinpoint Test A: CHECK THE EGR STEPPER SUPPLY AND CONTROL CIRCUITS
Note. Check for DTCs indicating an air filter solenoid, purge valve or mass air flow meter fault before carrying out EGR stepper supply voltage pinpoint tests.
Pinpoint Test A
A1
CHECK THE EGR STEPPER SUPPLY VOLTAGE CIRCUITS
- Key off.
- Disconnect the EGR stepper electrical connector, PI15.
- Key on, ignition off.
A2
Is either voltage less than 10 volts?
- Measure the voltage between
- EGR stepper connector PI15, harness side Battery Pin 02 Negative terminal Pin 05
Is either voltage less than 10 volts?
YES REPAIR the relevant EGR stepper supply voltage circuit. This circuit includes the front power distribution box (fuse 37) and the EMS control relay. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTCs and test the system for normal operation.
NO Go to step 3 . → A3
A3
CHECK THE EGR STEPPER CONTROL CIRCUITS FOR SHORT CIRCUIT TO GROUND
- Key off.
- Measure the resistance between
- EGR stepper connector PI15, harness side Battery Pin 04 Negative terminal Pin 01 Pin 06 Pin 03
Are any of the resistances less than 10,000 ohms?
YES REPAIR the short circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTCs and test the system for normal operation.
NO Go to step 4 . → A4
A4
CHECK THE EGR STEPPER CONTROL CIRCUITS FOR SHORT CIRCUIT TO POWER
- Measure the resistance between
- EGR stepper connector PI15, harness side Battery Pin 04 Positive terminal Pin 01 Pin 06 Pin 03
Are any of the resistances less than 10,000 ohms?
YES REPAIR the short circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTCs and test the system for normal operation.
NO Go to step 5 . → A5
A5
CHECK THE EGR STEPPER CONTROL CIRCUITS FOR HIGH RESISTANCE
- Key off.
- Disconnect the ECM electrical connector, PI300.
- Measure the resistance between
- EGR stepper connector PI15, harness side ECM connector PI300, harness side Pin 04 Pin 53 Pin 01 Pin 52 Pin 06 Pin 51 Pin 03 Pin 50
Are any of the resistances less than 10,000 ohms?
YES REPAIR the high resistance circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO CHECK for DTCs. Refer to «DTC index»(ref-311325-S23693319042009032500000) .
Pinpoint Test B: CHECK THE SECONDARY AIR INJECTION PUMP CIRCUITS
Pinpoint Test B
B1
CHECK THE SECONDARY AIR INJECTION PUMP RELAY SUPPLY VOLTAGES
- Key off.
- Remove the secondary air injection pump relay.
- Measure the voltage between
- Secondary air injection relay base Battery Pin 01 Negative terminal Pin 05
Is either voltage less than 10 volts?
YES REPAIR the circuit between the secondary air injection relay base and battery. This circuit includes fuse 31 of the front power distribution box. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO Go to step 2 . → B2
B2
CHECK THE SECONDARY AIR INJECTION RELAY TO AIR PUMP SUPPLY CIRCUIT FOR SHORT CIRCUIT TO GROUND
- Disconnect the secondary air injection pump electrical connector, FH310.
- Measure the resistance between
- Secondary air injection relay base Battery Pin 03 Negative terminal
Is the resistance less than 10,000 ohms?
YES REPAIR the short circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO Go to step 3 . → B3
B3
CHECK THE SECONDARY AIR INJECTION RELAY TO AIR PUMP SUPPLY CIRCUIT FOR SHORT CIRCUIT TO POWER
- Measure the resistance between
- Secondary air injection relay base Battery Pin 03 Positive terminal
Is the resistance less than 10,000 ohms?
YES REPAIR the short circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO Go to step 4 . → B4
B4
CHECK THE SECONDARY AIR INJECTION PUMP SIGNAL CIRCUIT FOR SHORT CIRCUIT TO GROUND
- Measure the resistance between
- Secondary air injection relay base Battery Pin 02 Negative terminal
Is the resistance less than 10,000 ohms?
YES REPAIR the short circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO Go to step 5 . → B5
B5
CHECK THE SECONDARY AIR INJECTION PUMP SIGNAL CIRCUIT FOR SHORT CIRCUIT TO POWER
- Measure the resistance between
- Secondary air injection relay base Battery Pin 02 Positive terminal
Is the resistance less than 10,000 ohms?
YES REPAIR the short circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO Go to step 6 . → B6
B6
CHECK THE SECONDARY AIR INJECTION RELAY TO AIR PUMP SUPPLY CIRCUIT FOR HIGH RESISTANCE
- Measure the resistance between
- Secondary air injection relay base Secondary air injection pump connector FH310, harness side Pin 03 Pin 02
Is the resistance greater than 5 ohms?
YES REPAIR the high resistance circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO Go to step 7 . → B7
B7
CHECK THE SECONDARY AIR INJECTION PUMP GROUND CIRCUIT FOR HIGH RESISTANCE
- Measure the resistance between
- Secondary air injection pump connector FH310, harness side Battery Pin 01 Negative terminal
Is the resistance greater than 5 ohms?
YES REPAIR the high resistance circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO Go to step 8 . → B8
B8
CHECK THE SECONDARY AIR INJECTION PUMP SIGNAL CIRCUIT FOR HIGH RESISTANCE
- Disconnect the ECM electrical connector, FH300.
- Measure the resistance between
- Secondary air injection relay base ECM connector FH300, harness side Pin 02 Pin 52
Is the resistance greater than 5 ohms?
YES REPAIR the high resistance circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO INSTALL a new secondary air injection pump relay. CLEAR the DTC and test the system for normal operation.
Pinpoint Test D: CHECK THE SECONDARY AIR INJECTION CONTROL VALVE CIRCUITS
Pinpoint Test D
D1
CHECK THE SECONDARY AIR INJECTION CONTROL VALVE SUPPLY VOLTAGE
- Key off.
- Disconnect the secondary air injection control valve electrical connector, PI302.
- Key on, engine off.
- Measure the voltage between
- Secondary air injection control valve connector PI302, harness side Battery Pin 01 Negative terminal
Is the voltage less than 10 volts?
YES REPAIR the supply circuit between the secondary air injection control valve and battery. This circuit includes fuse 2 of the front power distribution. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO Go to step 2 . → D2
D2
CHECK THE SECONDARY AIR INJECTION CONTROL VALVE CONTROL CIRCUIT FOR SHORT CIRCUIT TO GROUND
- Measure the resistance between
- Secondary air injection control valve connector PI302, harness side Battery Pin 02 Negative terminal
Is the resistance less than 10,000 ohms?
YES REPAIR the short circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO Go to step 3 . → D3
D3
CHECK THE SECONDARY AIR INJECTION CONTROL VALVE CONTROL CIRCUIT FOR SHORT CIRCUIT TO POWER
- Measure the resistance between
- Secondary air injection control valve connector PI302, harness side Battery Pin 02 Positive terminal
Is the resistance less than 10,000 ohms?
YES REPAIR the short circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO Go to step 4 . → D4
D4
CHECK THE SECONDARY AIR INJECTION CONTROL VALVE CONTROL CIRCUIT FOR HIGH RESISTANCE
- Disconnect the ECM electrical connector, FH300.
- Measure the resistance between
- Secondary air injection control valve connector PI302, harness side ECM connector FH300, harness side Pin 02 Pin 55
Is the resistance greater than 5 ohms?
YES REPAIR the high resistance circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO INSTALL a new secondary air injection control valve. See «Secondary Air Injection (AIR) Control Valve - 3.0L»(ref-311325-S32287666862009032500000) and «Secondary Air Injection (AIR) Control Valve - 4.2L, Vehicles Without: Supercharger»(ref-311325-S17433307622009032500000) and «Secondary Air Injection (AIR) Control Valve - 4.2L, Vehicles With: Supercharger»(ref-311325-S00760667392009032500000) . . CLEAR the DTC and test the system for normal operation.
- Verify the customer concern.
- Visually inspect for obvious signs of mechanical or electrical damage. Visual Inspection Chart Mechanical Electrical Engine breather hoses Cyclone separator Exhaust gas recirculation (EGR) pipes (check for cracks) EGR valve Fuses Wiring harness Loose or corroded electrical connectors Sensor(s) Stepper motor(s) Secondary air injection pump Secondary air injection control valve Engine control module (ECM)
- If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
- If the cause is not visually evident use the Jaguar approved diagnostic system or a scan tool to retrieve the fault codes before proceeding to the diagnostic trouble code (DTC) Index.
| Symptom (general) | Symptom (specific) | Possible source | Action |
|---|---|---|---|
| Non-Start | Engine cranks, but does not fire | Engine breather system disconnected/restricted | Check the engine breather system hoses, separator, etc. Rectify as necessary. |
| Difficult to start | Difficult to start cold | Exhaust gas recirculation (EGR) valve stuck open | Check the EGR valve, See Exhaust Gas Recirculation (EGR) Valve . Check the pipe work. |
| Engine stalls | Engine stalls soon after start | Breather system disconnected/restricted | Check the engine breather system hoses, separator, etc. Rectify as necessary. |
| Engine stops/stalls | EGR valve stuck open | Check the EGR valve. See Exhaust Gas Recirculation (EGR) Valve . | |
| Rough running | Poor idle quality | EGR valve stuck open | Check the EGR valve. See Exhaust Gas Recirculation (EGR) Valve . |
| Poor driveability | Engine hesitates/poor acceleration | EGR valve stuck open | Check the EGR valve. See Exhaust Gas Recirculation (EGR) Valve . |
| Poor throttle response | Breather system disconnected/restricted | Check the engine breather system hoses, separator, etc. Rectify as necessary. | |
| Excessive | Fuel consumption Black smoke Emissions | EGR valve stuck open EGR system not operating Crankcase ventilation system restricted | Check the EGR valve. See Exhaust Gas Recirculation (EGR) Valve . For EGR valve circuit tests. Refer to Pinpoint Test A . Check the engine breather system hoses, separator, etc. Rectify as necessary. |
| Noisy | Loud 'ticking' noise with engine running | EGR pipes cracked | Inspect the EGR pipes, paying particular attention to the ribbed sections. Replace as necessary. |
| Oil leakage | Engine oil leaks | Crankcase ventilation system restricted | Check the engine breather system hoses, separator, etc. Rectify as necessary. |
Symptom Chart
Note. Generic scan tools may not read the codes listed, or may read only 5-digit codes. Match the 5 digits from the scan tool to the first 5 digits of the 7-digit code listed to identify the fault (the last 2 digits give extra information read by the manufacturer-approved diagnostic system).
Note. For a full list of DTCs. Refer to Electronic Engine Controls - VIN Range: N52048->N99999 or and Refer to Electronic Engine Controls - VIN Range: N52048->N99999 article.
| DTC | Description | Possible causes | Action |
|---|---|---|---|
| P040100 | EGR flow insufficient | EGR valve incorrectly fitted or loose EGR valve stuck closed, blocked EGR pipe blocked EGR valve mechanical failure | Check the installation of the EGR valve. See Exhaust Gas Recirculation (EGR) Valve . Check the EGR pipe work. |
| P041100 | Secondary air injection system incorrect flow detected | Secondary air injection control valve incorrectly fitted Secondary air injection control valve stuck closed, blocked Secondary air injection control valve pipe blocked Secondary air injection control valve mechanical failure | Check for secondary air injection system related DTCs. Rectify as necessary. Check the installation of the secondary air injection system. |
| P041300 | Secondary air injection control valve circuit | Secondary air injection control valve control circuit: short circuit to power | For Secondary air injection control valve circuit tests, Refer to Pinpoint Test D . |
| P041400 | Secondary air injection control valve circuit | Secondary air injection control valve control circuit: short circuit to ground Secondary air injection control valve control circuit: high resistance | For Secondary air injection control valve circuit tests, Refer to Pinpoint Test D . |
| P048900 | EGR control circuit low | EGR valve power supply circuit: short circuit to ground EGR valve power supply circuit: high resistance | For EGR stepper circuit tests, Refer to Pinpoint Test A . |
| P049000 | EGR control circuit high | EGR valve to ECM drive circuit: short circuit to power | For EGR stepper circuit tests, Refer to Pinpoint Test A . |
| P243100 | Secondary air injection system air flow/pressure sensor circuit range/performance | Secondary air injection manifold pressure (MAP) sensor performance | For Secondary air injection MAP sensor tests, Refer to Pinpoint Test C . |
| P243200 | Secondary air injection system air flow/pressure sensor circuit low | Secondary air injection MAP sensor circuit: short circuit to ground Secondary air injection MAP sensor circuit: high resistance | For Secondary air injection MAP sensor tests, Refer to Pinpoint Test C . |
| P243300 | Secondary air injection system air flow/pressure sensor circuit high | Secondary air injection MAP sensor circuit: short circuit to power | For Secondary air injection MAP sensor tests, Refer to Pinpoint Test C . |
| P244400 | Secondary air injection pump stuck ON | Secondary air injection pump control circuit: short circuit to ground | For Secondary air injection pump circuit tests, Refer to Pinpoint Test B . |
| P244500 | Secondary air injection pump stuck OFF | Secondary air injection pump control circuit: short circuit to power | For Secondary air injection pump circuit tests, Refer to Pinpoint Test B . |
Note. Check for DTCs indicating an air filter solenoid, purge valve or mass air flow meter fault before carrying out EGR stepper supply voltage pinpoint tests.
Pinpoint Test A
A1
CHECK THE EGR STEPPER SUPPLY VOLTAGE CIRCUITS
- Key off.
- Disconnect the EGR stepper electrical connector, PI15.
- Key on, ignition off.
A2
Is either voltage less than 10 volts?
- Measure the voltage between
- EGR stepper connector PI15, harness side Battery Pin 02 Negative terminal Pin 05
Is either voltage less than 10 volts?
YES REPAIR the relevant EGR stepper supply voltage circuit. This circuit includes the front power distribution box (fuse 37) and the EMS control relay. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTCs and test the system for normal operation.
NO Go to step 3 . → A3
A3
CHECK THE EGR STEPPER CONTROL CIRCUITS FOR SHORT CIRCUIT TO GROUND
- Key off.
- Measure the resistance between
- EGR stepper connector PI15, harness side Battery Pin 04 Negative terminal Pin 01 Pin 06 Pin 03
Are any of the resistances less than 10,000 ohms?
YES REPAIR the short circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTCs and test the system for normal operation.
NO Go to step 4 . → A4
A4
CHECK THE EGR STEPPER CONTROL CIRCUITS FOR SHORT CIRCUIT TO POWER
- Measure the resistance between
- EGR stepper connector PI15, harness side Battery Pin 04 Positive terminal Pin 01 Pin 06 Pin 03
Are any of the resistances less than 10,000 ohms?
YES REPAIR the short circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTCs and test the system for normal operation.
NO Go to step 5 . → A5
A5
CHECK THE EGR STEPPER CONTROL CIRCUITS FOR HIGH RESISTANCE
- Key off.
- Disconnect the ECM electrical connector, PI300.
- Measure the resistance between
- EGR stepper connector PI15, harness side ECM connector PI300, harness side Pin 04 Pin 53 Pin 01 Pin 52 Pin 06 Pin 51 Pin 03 Pin 50
Are any of the resistances less than 10,000 ohms?
YES REPAIR the high resistance circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO CHECK for DTCs. Refer to «DTC index»(ref-311325-S23693319042009032500000) .
Pinpoint Test B
B1
CHECK THE SECONDARY AIR INJECTION PUMP RELAY SUPPLY VOLTAGES
- Key off.
- Remove the secondary air injection pump relay.
- Measure the voltage between
- Secondary air injection relay base Battery Pin 01 Negative terminal Pin 05
Is either voltage less than 10 volts?
YES REPAIR the circuit between the secondary air injection relay base and battery. This circuit includes fuse 31 of the front power distribution box. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO Go to step 2 . → B2
B2
CHECK THE SECONDARY AIR INJECTION RELAY TO AIR PUMP SUPPLY CIRCUIT FOR SHORT CIRCUIT TO GROUND
- Disconnect the secondary air injection pump electrical connector, FH310.
- Measure the resistance between
- Secondary air injection relay base Battery Pin 03 Negative terminal
Is the resistance less than 10,000 ohms?
YES REPAIR the short circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO Go to step 3 . → B3
B3
CHECK THE SECONDARY AIR INJECTION RELAY TO AIR PUMP SUPPLY CIRCUIT FOR SHORT CIRCUIT TO POWER
- Measure the resistance between
- Secondary air injection relay base Battery Pin 03 Positive terminal
Is the resistance less than 10,000 ohms?
YES REPAIR the short circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO Go to step 4 . → B4
B4
CHECK THE SECONDARY AIR INJECTION PUMP SIGNAL CIRCUIT FOR SHORT CIRCUIT TO GROUND
- Measure the resistance between
- Secondary air injection relay base Battery Pin 02 Negative terminal
Is the resistance less than 10,000 ohms?
YES REPAIR the short circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO Go to step 5 . → B5
B5
CHECK THE SECONDARY AIR INJECTION PUMP SIGNAL CIRCUIT FOR SHORT CIRCUIT TO POWER
- Measure the resistance between
- Secondary air injection relay base Battery Pin 02 Positive terminal
Is the resistance less than 10,000 ohms?
YES REPAIR the short circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO Go to step 6 . → B6
B6
CHECK THE SECONDARY AIR INJECTION RELAY TO AIR PUMP SUPPLY CIRCUIT FOR HIGH RESISTANCE
- Measure the resistance between
- Secondary air injection relay base Secondary air injection pump connector FH310, harness side Pin 03 Pin 02
Is the resistance greater than 5 ohms?
YES REPAIR the high resistance circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO Go to step 7 . → B7
B7
CHECK THE SECONDARY AIR INJECTION PUMP GROUND CIRCUIT FOR HIGH RESISTANCE
- Measure the resistance between
- Secondary air injection pump connector FH310, harness side Battery Pin 01 Negative terminal
Is the resistance greater than 5 ohms?
YES REPAIR the high resistance circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO Go to step 8 . → B8
B8
CHECK THE SECONDARY AIR INJECTION PUMP SIGNAL CIRCUIT FOR HIGH RESISTANCE
- Disconnect the ECM electrical connector, FH300.
- Measure the resistance between
- Secondary air injection relay base ECM connector FH300, harness side Pin 02 Pin 52
Is the resistance greater than 5 ohms?
YES REPAIR the high resistance circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO INSTALL a new secondary air injection pump relay. CLEAR the DTC and test the system for normal operation.
Pinpoint Test D
D1
CHECK THE SECONDARY AIR INJECTION CONTROL VALVE SUPPLY VOLTAGE
- Key off.
- Disconnect the secondary air injection control valve electrical connector, PI302.
- Key on, engine off.
- Measure the voltage between
- Secondary air injection control valve connector PI302, harness side Battery Pin 01 Negative terminal
Is the voltage less than 10 volts?
YES REPAIR the supply circuit between the secondary air injection control valve and battery. This circuit includes fuse 2 of the front power distribution. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO Go to step 2 . → D2
D2
CHECK THE SECONDARY AIR INJECTION CONTROL VALVE CONTROL CIRCUIT FOR SHORT CIRCUIT TO GROUND
- Measure the resistance between
- Secondary air injection control valve connector PI302, harness side Battery Pin 02 Negative terminal
Is the resistance less than 10,000 ohms?
YES REPAIR the short circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO Go to step 3 . → D3
D3
CHECK THE SECONDARY AIR INJECTION CONTROL VALVE CONTROL CIRCUIT FOR SHORT CIRCUIT TO POWER
- Measure the resistance between
- Secondary air injection control valve connector PI302, harness side Battery Pin 02 Positive terminal
Is the resistance less than 10,000 ohms?
YES REPAIR the short circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO Go to step 4 . → D4
D4
CHECK THE SECONDARY AIR INJECTION CONTROL VALVE CONTROL CIRCUIT FOR HIGH RESISTANCE
- Disconnect the ECM electrical connector, FH300.
- Measure the resistance between
- Secondary air injection control valve connector PI302, harness side ECM connector FH300, harness side Pin 02 Pin 55
Is the resistance greater than 5 ohms?
YES REPAIR the high resistance circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO INSTALL a new secondary air injection control valve. See «Secondary Air Injection (AIR) Control Valve - 3.0L»(ref-311325-S32287666862009032500000) and «Secondary Air Injection (AIR) Control Valve - 4.2L, Vehicles Without: Supercharger»(ref-311325-S17433307622009032500000) and «Secondary Air Injection (AIR) Control Valve - 4.2L, Vehicles With: Supercharger»(ref-311325-S16395528702009032500000) . CLEAR the DTC and test the system for normal operation.