Wash/wipe Systems: Diagnosis Saab 9-4X I

Wash/Wipe System DTC Index

WASH/WIPE SYSTEM DTC INDEX

Diagnostic Instructions

1. Perform the «DIAGNOSTIC SYSTEM CHECK - VEHICLE»(ref-652232-S33658475782014082300000) prior to using this diagnostic procedure.
2. Review «STRATEGY BASED DIAGNOSTICS»(ref-652232-S31928919322014082300000) for an overview of the diagnostic approach.
3. «DIAGNOSTIC PROCEDURE INSTRUCTIONS»(ref-652232-S26410554662014082300000) provides an overview of each diagnostic category.

DTC Descriptor

DTC B370A 39

Rain Sensor Internal Malfunction

Diagnostic Fault Information

Conditions for Running the DTC

1. Ignition ON.
2. The system voltage is between 9-16 V.

Conditions for Setting the DTC

The BCM receives an invalid signal from the windshield outside moisture sensor.

Action Taken When the DTC Sets

1. If the BCM loses communication with the windshield outside moisture sensor while the windshield outside moisture sensor was requesting single wipes, it shall fail soft the wipers operation to front wiper manual intermittent with a fixed dwell time of 4 seconds.
2. If the BCM loses communication with the windshield outside moisture sensor while the windshield outside moisture sensor was continuously requesting low, it shall fail soft the wipers operation to front wiper manual-low.
3. If the BCM loses communication with the windshield outside moisture sensor while the windshield outside moisture sensor was continuously requesting high, it shall fail soft the wipers operation to front wiper manual-high.

Conditions for Clearing the DTC

A current DTC clears when the diagnostic runs and passes.

Scan Tool Reference

CONTROL MODULE REFERENCES for scan tool information

1. Perform the «DIAGNOSTIC SYSTEM CHECK - VEHICLE»(ref-652232-S33658475782014082300000) prior to using this diagnostic procedure.
2. Review «STRATEGY BASED DIAGNOSTICS»(ref-652232-S31928919322014082300000) for an overview of the diagnostic approach.
3. «DIAGNOSTIC PROCEDURE INSTRUCTIONS»(ref-652232-S26410554662014082300000) provides an overview of each diagnostic category.

DTC B370B 02

Rear Wiper Function Control Circuit Short to Ground

1. Ignition ON.
2. The system voltage is between 9-16 V.

A short to ground is detected in the rear window wiper relay control circuit.

Rear wiper operation is suspended.

A current DTC clears when the diagnostic runs and passes.

CONTROL MODULE REFERENCES for scan tool information

Circuit/System Testing

1. Ignition OFF, disconnect the KR7 Rear Wiper Relay.
2. Test for less than 5 ohms between the ground circuit terminal 86 and ground.
3. If greater than the specified range, test the ground circuit for an open/high resistance. If the circuit tests normal, test or replace the X50A Fuse Block - Underhood.
4. Connect a test lamp between the control circuit terminal 85 and ground.
5. Ignition ON, command the rear washer relay ON and OFF using the wiper switch. The test lamp should turn ON and OFF when changing between the commanded states.
6. If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the K9 body control module.
7. If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, test or replace the K9 Body Control Module.
8. If all circuits test normal, test or replace the KR7 Rear Wiper Relay.

Relay Test

1. Ignition OFF, connect the KR7 Rear Window Wiper Relay.
2. Test for 60-200 ohms between terminals 85 and 86.
3. If the resistance is not within the specified range, replace the relay.
4. Test for infinite resistance between the following terminals: 30 and 86 30 and 87 30 and 85 85 and 87
5. If not the specified value, replace the relay.
6. Test for less than 5 ohms between terminals 30 and 87A.
7. If greater than the specified range, replace the relay.
8. Install a 10 A fused jumper wire between relay terminal 85 and 12 V. Install a jumper wire between relay terminal 86 and ground. Test for less than 5 ohms between terminals 30 and 87.
9. If greater than the specified range, replace the KR7 Rear Window Wiper Relay.

1. Perform the «DIAGNOSTIC SYSTEM CHECK - VEHICLE»(ref-652232-S33658475782014082300000) prior to using this diagnostic procedure.
2. Review «STRATEGY BASED DIAGNOSTICS»(ref-652232-S31928919322014082300000) for an overview of the diagnostic approach.
3. «DIAGNOSTIC PROCEDURE INSTRUCTIONS»(ref-652232-S26410554662014082300000) provides an overview of each diagnostic category.

DTC Descriptors

DTC B3715 02

Windshield Wiper Relay Circuit Short to Ground

DTC B3875 01

Windshield Wiper High Speed Relay Circuit Short to Battery

DTC B3875 02

Windshield Wiper High Speed Relay Circuit Short to Ground

DTC B3875 04

Windshield Wiper High Speed Relay Circuit Open

1. The DTC runs only when a wiper output is actively being requested by the BCM.
2. The system voltage is between 9-16 V.

1. A short to ground is detected in the Front Wiper Relay control circuit or in the High Speed Relay control circuit.
2. A short to voltage or an open/high resistance is detected in the High Speed Relay control circuit.

The BCM will not activate the wiper output.

1. A current DTC will clear when the condition for setting the fault is no longer present.
2. A history DTC will clear after 50 consecutive ignition cycles without a fault present.

CONTROL MODULE REFERENCES for scan tool information

DTC B3715

1. Ignition OFF, disconnect the KR12B windshield wiper relay.
2. Test for less than 5 ohms between the ground circuit terminal 85 and ground.
3. If greater than the specified range, test the ground circuit for an open/high resistance.
4. Connect a test lamp between the control circuit terminal 86 and ground.
5. Ignition ON, command the low speed wipers ON and OFF using the S82 windshield wiper/washer switch. The test lamp should turn ON and OFF when changing between the commanded states.
6. If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the K9 BCM.
7. If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K9 BCM.
8. If all circuits test normal, test or replace the KR12B windshield wiper relay.

DTC B3875

1. Ignition OFF, disconnect the KR12C windshield wiper speed control relay.
2. Ignition ON, verify a test lamp illuminates between B+ circuit terminal 85 and ground.
3. If the test lamp does not illuminate and the circuit fuse is good, test or replace the underhood fuse block.
4. Connect a test lamp between the control circuit terminal 86 and B+.
5. Command the high speed wipers ON and OFF using the S82 windshield wiper/washer switch. The test lamp should turn ON and OFF when changing between the commanded states.
6. If the test lamp is always ON, test the control circuit for a short to ground. If the circuit tests normal, replace the K9 BCM.
7. If the test lamp is always OFF, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the K9 BCM.
8. If all circuits test normal, test or replace the KR12C windshield wiper speed control relay.

1. Ignition OFF, disconnect the appropriate relay.
2. Test for 60-200 ohms between terminals 85 and 86.
3. If the resistance is not within the specified range, replace the relay.
4. Test for infinite resistance between the following terminals: 30 and 86 30 and 87 30 and 85 85 and 87
5. If not the specified value, replace the relay.
6. Test for less than 5 ohms between terminals 30 and 87A.
7. If greater than the specified value, replace the relay.
8. Install a 10 A fused jumper wire between relay terminal 85 and 12 V. Install a jumper wire between relay terminal 86 and ground. Test for less than 5 ohms between terminals 30 and 87.
9. If greater than specified range, replace the relay.

1. Perform the «DIAGNOSTIC SYSTEM CHECK - VEHICLE»(ref-652232-S33658475782014082300000) prior to using this diagnostic procedure.
2. Review «STRATEGY BASED DIAGNOSTICS»(ref-652232-S31928919322014082300000) for an overview of the diagnostic approach.
3. «DIAGNOSTIC PROCEDURE INSTRUCTIONS»(ref-652232-S26410554662014082300000) provides an overview of each diagnostic category.

DTC B3810 02

Headlamp Washer Relay Circuit Short to Ground

1. Ignition ON.
2. The system voltage is between 9-16 V.

A short to ground is detected in the headlamp washer relay control circuit.

Washer operation is suspended.

1. A current DTC clears when the diagnostic runs and passes.
2. A history DTC will clear after 50 consecutive ignition cycles without a fault present.

Diagnostic Aids

The headlamp wash feature shall only be allowed to be activated if the main beam or dipped beam headlamps are active too.

CONTROL MODULE REFERENCES for diagnostic tester information

1. Ignition OFF, disconnect the KR2 Headlamp Washer Pump Relay.
2. Test for less than 5 ohms between the ground circuit terminal 85 and ground
3. If greater than the specified range, test the ground circuit for an open/high resistance
4. Connect a test lamp between the control circuit terminal 86 and ground.
5. Ignition ON, command the headlamp washer ON and OFF using the wiper switch. The test lamp should turn ON and OFF when changing between the commanded states.
6. If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, test or replace the K9 Body Control Module.
7. If the test lamp is always OFF, test for a short to ground or an open/high resistance on the control circuit. If the circuit tests normal, test or replace the K9 Body Control Module.
8. If all circuits test normal, test or replace the KR2 Headlamp Washer Pump Relay.

1. Ignition OFF, connect the KR2 Headlamp Washer Pump Relay.
2. Test for 60-200 ohms between terminals 85 and 86.
3. If the resistance is not within the specified range, replace the relay.
4. Test for infinite resistance between the following terminals: 30 and 86 30 and 87 30 and 85 85 and 87
5. If not the specified value, replace the relay.
6. Test for less than 5 ohms between terminals 30 and 87A.
7. If greater than the specified range, replace the relay.
8. Install a 10 A fused jumper wire between relay terminal 85 and 12 volts. Install a jumper wire between relay terminal 86 and ground. Test for less than 5 ohms between terminals 30 and 87.
9. If greater than specified range, replace the relay.

1. Perform the «DIAGNOSTIC SYSTEM CHECK - VEHICLE»(ref-652232-S33658475782014082300000) prior to using this diagnostic procedure.
2. Review «STRATEGY BASED DIAGNOSTICS»(ref-652232-S31928919322014082300000) for an overview of the diagnostic approach.
3. «DIAGNOSTIC PROCEDURE INSTRUCTIONS»(ref-652232-S26410554662014082300000) provides an overview of each diagnostic category.

DTC B3811 02

Rear Washer Relay Circuit Short to Ground

1. Ignition ON.
2. The system voltage is between 9-16 V.

A short to ground is detected in the rear washer relay control circuit.

Washer operation is suspended.

1. A current DTC clears when the diagnostic runs and passes.
2. A history DTC will clear after 50 consecutive ignition cycles without a fault present.

CONTROL MODULE REFERENCES for scan tool information

1. Ignition OFF, disconnect the X2 harness connector at the X50A rear fuse block in the engine compartment.
2. Disconnect the X5 harness connector from K9 BCM.
3. Test for less than 5 ohms between the control circuit terminal 10 at the X50A fuse block - underhood and the control circuit terminal 11 X5 at the K9 BCM.
4. If the value is not within the specified range, test the control circuit for a short to voltage or an open/high resistance.
5. If the circuit tests normal, test or replace the K9 BCM.
6. Test for infinite resistance between the control circuit terminal 10 at the X50A fuse block - underhood and ground.
7. If the value is not within the specified range, test the control circuit for a short to ground.
8. If all circuits test normal, test or replace the X50A fuse block - underhood.

1. Ignition OFF, disconnect the X5 harness connector at the K9 BCM.
2. Test for 60-200 ohms between control circuit connection 11 at K9 BCM and ground.
3. If the value is not within the specified range, test the control circuit for a short to ground, short to voltage or an open.
4. If all circuits test normal, test or replace the X50A fuse block - underhood.

Output Control Test

1. Connect all harness connectors, ignition ON, command the Rear Washer Relay Command On and OFF with a scan tool. Observe the KR6 rear window washer pump relay clicks and the G24 windshield washer pump runs.
2. If the KR6 rear window washer pump relay does not work, replace the X50A fuse block - underhood.
3. If the KR6 rear window washer pump relay does work, but the G24 windshield washer pump does not run, test the G24 windshield washer pump ground and control circuit.
4. If all circuits test normal, replace the G24 windshield washer pump.

1. Perform the «DIAGNOSTIC SYSTEM CHECK - VEHICLE»(ref-652232-S33658475782014082300000) prior to using this diagnostic procedure.
2. Review «STRATEGY BASED DIAGNOSTICS»(ref-652232-S31928919322014082300000) for an overview of the diagnostic approach.
3. «DIAGNOSTIC PROCEDURE INSTRUCTIONS»(ref-652232-S26410554662014082300000) provides an overview of each diagnostic category.

DTC B3873 02

Front Washer Relay Circuit Short to Ground

1. Ignition ON.
2. The system voltage is between 9-16 V.

A short to ground is detected in the windshield washer relay control circuit.

Washer operation is suspended.

A current DTC clears when the diagnostic runs and passes.

CONTROL MODULE REFERENCES for diagnostic tester information

1. Ignition OFF, disconnect the harness connector at the X50A Fuse Block - Underhood.
2. Disconnect the harness connector X4 at the K9 Body Control Module.
3. Test for less than 5 ohms between the control circuit terminal 14 at the X50A Fuse Block - Underhood and the control circuit terminal 14 X4 at the K9 Body Control Module.
4. If the value is not within the specified range, test the control circuit for a short to voltage or an open/high resistance.
5. If the circuit tests normal, test or replace the K9 Body Control Module.
6. Test for infinite resistance between the control circuit terminal 14 at the X50A Fuse Block - Underhood and ground.
7. If the value is not within the specified range, test the control circuit for a short to ground.
8. If all circuits test normal, test or replace the X50A Fuse Block - Underhood.

1. Ignition OFF, disconnect the harness connector X5 at the K9 Body Control Module.
2. Test for 60-200 ohms between control circuit terminal 14 X4 at the K9 Body Control Module and ground.
3. If the value is not within the specified range, test the control circuit for a short to ground, short to voltage or an open.
4. If all circuits test normal, test or replace the X50A Fuse Block - Underhood.

Visual/Physical Inspection

1. Inspect for aftermarket devices which may affect the operation of the windshield wiper/washer system. Refer to «CHECKING AFTERMARKET ACCESSORIES»(ref-652238-S27245169932014082300000) .
2. Inspect for easily accessible or visible system components for obvious damage or conditions which may cause the symptom.
3. Inspect the washer fluid reservoir for the proper fluid level.

Symptom List

Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom

1. «WINDSHIELD WIPER SYSTEM MALFUNCTION»(ref-652257-S19291604532014082300000)
2. «WASHER MALFUNCTION»(ref-652257-S39965304742014082300000)
3. «RAIN SENSOR MALFUNCTION»(ref-652257-S09156479192014082300000)
4. «REAR WIPER SYSTEM MALFUNCTION»(ref-652257-S19981428402014082300000)
5. «HEADLAMP WASHER MALFUNCTION»(ref-652257-S36476390972014082300000)

1. Perform the «DIAGNOSTIC SYSTEM CHECK - VEHICLE»(ref-652232-S33658475782014082300000) prior to using this diagnostic procedure.
2. Review «STRATEGY BASED DIAGNOSTICS»(ref-652232-S31928919322014082300000) for an overview of the diagnostic approach.
3. «DIAGNOSTIC PROCEDURE INSTRUCTIONS»(ref-652232-S26410554662014082300000) provides an overview of each diagnostic category.

CONTROL MODULE REFERENCES for scan tool information

Windshield Wiper/Washer Switch Circuit Test

1. Ignition OFF, disconnect the X1 harness connector at the S82 windshield wiper/washer switch.
2. Verify a test lamp illuminates between the low reference circuit terminal 2 and B+.
3. If the test lamp does not illuminate, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the K9 BCM.
4. Ignition ON, test for B+ between the signal cirucit terminal 1 and ground.
5. If less than the specified value, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K9 BCM.
6. Ignition ON, test for B+ between the signal cirucit terminal 3 and ground.
7. If less than the specified value, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K9 BCM.
8. Ignition On, test for 10 V between the signal circuit terminal 5 and ground.
9. If less than the specified value, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K9 BCM.
10. If greater than the specified value, test the signal circuit for a short to voltage. If the circuit tests normal, replace the K9 BCM.
11. If all circuits test normal, test or replace the S82 windshield wiper/washer switch.

Windshield Wiper Motor Circuit Test

1. Ignition OFF, disconnect KR12B windshield wiper relay.
2. Test for less than 5 ohms between the ground circuit terminal 85 and ground.
3. If greater than the specified range, test the ground circuit for an open/high resistance.
4. Test for less than 5 ohms between the ground circuit terminal 87A and ground.
5. If greater than the specified range, test or replace the X50A underhood fuse block.
6. Ignition ON, verify a test lamp illuminates between the B+ circuit terminal 87 and ground.
7. If the test lamp does not illuminate, test or replace the X50A underhood fuse block.
8. Install a test lamp between the control circuit terminal 86 and ground.
9. Command the low speed wipers ON and OFF using the S82 windshield wiper/washer switch. The test lamp should turn ON and OFF when changing between the commanded states.
10. If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the K9 BCM.
11. If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K9 BCM.
12. Ignition OFF, disconnect the KR12C windshield wiper speed control relay.
13. Test for less than 5 ohms between the control circuit terminal 30 of the KR12B windshield wiper relay and control circuit terminal 30 of the KR12C windshield wiper speed control relay.
14. If greater than the specified range, test or replace the X50A underhood fuse block.
15. Connect the KR12B windshield wiper relay.
16. Test for less than 5 ohms between the control circuit terminal 30 of the KR12C windshield wiper speed control relay and ground.
17. If greater than the specified range, test or replace the KR12B windshield wiper relay.
18. Ignition ON, verify a test lamp illuminates between the B+ circuit terminal 85 of the KR12C windshield wiper speed control relay and ground.
19. If the test lamp does not illuminate, test or replace the X50A underhood fuse block.
20. Install a test lamp between the control circuit terminal 30 of the KR12C windshield wiper speed control relay and ground.
21. Command the LOW speed wipers ON using the S82 windshield wiper/washer switch. The test lamp should illuminate when commanding the LOW speed wipers ON.
22. If the test lamp does not illuminate, replace the KR12B windshield wiper relay.
23. Connect a test lamp between control circuit terminal 86 of the KR12C windshield wiper speed control relay and B+.
24. Turn the high speed wipers ON and OFF using the S82 windshield wiper/washer switch. The test lamp should turn ON and OFF when changing between the commanded states.
25. If the test lamp is always ON, test the control circuit for a short to ground. If the circuit tests normal, replace the K9 BCM.
26. If the test lamp is always OFF, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the K9 BCM.
27. Ignition OFF, connect the KR12C windshield wiper speed control relay and disconnect the X1 harness connector at the M75 windshield wiper motor.
28. Test for less than 5 ohms between the ground circuit terminal C and ground.
29. If greater than the specified range, test the ground circuit for an open/high resistance.
30. Connect a test lamp between control circuit terminal E and ground.
31. Turn on the ignition and turn the low speed wipers ON and OFF using the S82 windshield wiper/washer switch. The test lamp should turn ON and OFF when changing between the commanded states.
32. If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, test or replace the KR12C windshield wiper speed control relay.
33. If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, test or replace the KR12C windshield wiper speed control relay.
34. Connect a test lamp between control circuit terminal D and ground.
35. Turn the high speed wipers ON and OFF using the S82 windshield wiper/washer switch. The test lamp should turn ON and OFF when changing between the commanded states.
36. If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, test or replace the KR12C windshield wiper speed control relay.
37. If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, test or replace the KR12C windshield wiper speed control relay.
38. If all circuits test normal, test or replace the M7 windshield wiper motor.

Wiper Park Circuit Test

1. Ignition OFF, disconnect the harness connector at the windshield wiper motor.
2. Ignition ON, test for B+ between signal circuit terminal B and ground.
3. If not the specified value, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, test or replace the K9 BCM.
4. If the circuit tests normal, test or replace the windshield wiper motor.

1. Perform the «DIAGNOSTIC SYSTEM CHECK - VEHICLE»(ref-652232-S33658475782014082300000) prior to using this diagnostic procedure.
2. Review «STRATEGY BASED DIAGNOSTICS»(ref-652232-S31928919322014082300000) for an overview of the diagnostic approach.
3. «DIAGNOSTIC PROCEDURE INSTRUCTIONS»(ref-652232-S26410554662014082300000) provides an overview of each diagnostic category.

CONTROL MODULE REFERENCES for scan tool information

Windshield Washer Switch Circuit Test

1. Ignition OFF, disconnect the X1 harness connector at the S82 windshield wiper/washer switch.
2. Verify that a test lamp illuminates between the low reference terminal 2 and B+.
3. If the test lamp does not illuminate, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the K9 BCM.
4. Ignition ON, verify the scan tool Windshield Washer Switch parameter is INACTIVE.
5. If not the specified value, test the signal circuit terminal 5 for a short to ground. If the circuit tests normal, replace the K9 BCM.
6. Install a 3 A fused jumper wire between the signal circuit terminal 5 and the ground circuit terminal 2. Verify the scan tool Windshield Washer Switch parameter is ACTIVE.
7. If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the K9 BCM.
8. If all circuits test normal, test or replace the S82 windshield wiper/washer switch.

Rear Washer Switch Circuit Test

1. Ignition OFF, disconnect the X1 harness connector at the S82 windshield wiper/washer switch.
2. Verify that a test lamp illuminates between the low reference terminal 2 and B+.
3. If the test lamp does not illuminate, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the K9 BCM.
4. Ignition ON, verify the rear washer is OFF.
5. If not the specified value, test the signal circuit terminal 4 for a short to ground. If the circuit tests normal, replace the K9 BCM.
6. Install a 3 A fused jumper wire between the signal circuit terminal 4 and the ground circuit terminal 2. Verify the rear washer turns ON.
7. If the rear washer does not turn on, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the K9 BCM.
8. If all circuits test normal, test or replace the S82 windshield wiper/washer switch.

Washer Pump Circuit Test

1. Ignition OFF, disconnect the X2 harness connector at the X50A underhood fuse block.
2. Connect a test lamp between the control circuit terminal 14 and ground.
3. Ignition ON, command the Winshield Washer Relay Command ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states.
4. If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the K9 BCM.
5. If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K9 BCM.
6. Connect a test lamp between the control circuit terminal 10 and ground.
7. Command the Rear Washer Relay Command ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states.
8. If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the K9 BCM.
9. If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K9 BCM.
10. Ignition OFF, connect the X2 harness connector at the X50A underhood fuse block and disconnect the harness connector at the G24 windshield washer pump.
11. Connect a test lamp between control circuit terminal 2 and ground.
12. Ignition ON, command the Windshield Washer Relay Command ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states.
13. If the test lamp is always ON, test the control circuit for a short to voltage. If the cirucit tests normal, replace the X50A underhood fuse block.
14. If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the X50A underhood fuse block.
15. Connect a test lamp between control circuit terminal 1 and ground.
16. Command the Rear Washer Relay Command ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states.
17. If the test lamp is always ON, test the control circuit for a short to voltage. If the cirucit tests normal, replace the X50A underhood fuse block.
18. If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the X50A underhood fuse block.
19. If all circuits test normal, test or replace the G24 windshield washer pump.

Low Washer Fluid Indicator Test

1. Verify the washer fluid reservoir is filled up.
2. Ignition OFF, disconnect the harness connector at the B118B windshield washer fluid level switch.
3. Test for less than 5 ohms between the ground terminal 1 and ground.
4. If greater than the specified range, test the ground circuit for an open/high resistance.
5. Ignition OFF, disconnect the X1 harness connector at the P16 instrument cluster.
6. Test for less than 5 ohms between the signal circuit terminal 2 at the B118B Windshield Washer Fluid Level Switch harness connector and signal terminal 15 at the P16 instrument cluster harness connector.
7. If greater than the specified range, test the signal circuit for a short to voltage or an open/high resistance.
8. Reconnect all harness connectors.
9. Ignition ON, command the Driver Information Center Segment test ON and OFF with the scan tool, verify that the low washer fluid indicator display reacts to ON and OFF positions.
10. If the low washer fluid indicator display is always ON or always OFF, replace the P16 instrument cluster.
11. If the low washer fluid indicator display changes between ON and OFF, test or replace the B118B windshield washer fluid level switch.

Washer Switch Test

1. Disconnect the X1 harness connector at the S82 windshield wiper/washer switch.
2. Test for less that 5 ohms between signal circuit terminal 5 and ground.
3. If not the specified range, replace the S82 windshield wiper/washer switch.
4. Test for less that 5 ohms between signal circuit terminal 4 and ground.
5. If not the specified range, replace the S82 windshield wiper/washer switch.

Washer Pump Test

1. Ignition OFF, disconnect the harness connector at the G24 windshield washer pump.
2. Install a 10 A fused jumper wire between the control terminal 2 and 12 V. Install a jumper wire between the ground terminal 1 and ground.
3. Verify the G24 windshield washer pump is activated.
4. If the G24 windshield washer pump does not activate, replace the G24 windshield washer pump.

1. Ignition OFF, remove the B118B windshield washer fluid level switch.
2. Install a wire at terminal 1 and terminal 2. Observe the resistance while moving the level switch.
3. The resistance should be changing between less than 5 ohms infinite resistance while moving the level switch.
4. If not the specified range, replace the B118B windshield washer fluid level switch.

1. Perform the «DIAGNOSTIC SYSTEM CHECK - VEHICLE»(ref-652232-S33658475782014082300000) prior to using this diagnostic procedure.
2. Review «STRATEGY BASED DIAGNOSTICS»(ref-652232-S31928919322014082300000) for an overview of the diagnostic approach.
3. «DIAGNOSTIC PROCEDURE INSTRUCTIONS»(ref-652232-S26410554662014082300000) provides an overview of each diagnostic category.

CONTROL MODULE REFERENCES for scan tool information

1. Perform the «DIAGNOSTIC SYSTEM CHECK - VEHICLE»(ref-652232-S33658475782014082300000) prior to using this diagnostic procedure.
2. Review «STRATEGY BASED DIAGNOSTICS»(ref-652232-S31928919322014082300000) for an overview of the diagnostic approach.
3. «DIAGNOSTIC PROCEDURE INSTRUCTIONS»(ref-652232-S26410554662014082300000) provides an overview of each diagnostic category.

CONTROL MODULE REFERENCES for diagnostic tester information.

1. Ignition OFF, connect the KR7 rear wiper relay.
2. Test for 60-200 ohms between terminals 85 and 86.
3. If the resistance is not within the specified range, replace the KR7 rear wiper relay.
4. Test for infinite resistance between the following terminals: 30 and 86 30 and 87 30 and 85 85 and 87
5. If not the specified value, replace the KR7 rear wiper relay.
6. Test for less than 5 ohms between terminals 30 and 87A.
7. If greater than the specified range, replace the KR7 rear wiper relay.
8. Install a 10 A fused jumper wire between relay terminal 85 and B+. Install a jumper wire between relay terminal 86 and ground. Test for less than 5 ohms between terminals 30 and 87.
9. If greater than the specified range, replace the KR7 rear wiper relay.

Rear Wiper Motor Test

1. Ignition OFF, disconnect the harness connector at the M45 rear wiper motor.
2. Install a 25 A fused jumper wire between the B+ terminal A and 12 V. Install a jumper wire between the ground terminal C and ground.
3. Verify the M45 rear wiper motor is operating.
4. If the M45 rear wiper motor is not operating, replace the M45 rear wiper motor.

1. Perform the «DIAGNOSTIC SYSTEM CHECK - VEHICLE»(ref-652232-S33658475782014082300000) prior to using this diagnostic procedure.
2. Review «STRATEGY BASED DIAGNOSTICS»(ref-652232-S31928919322014082300000) for an overview of the diagnostic approach.
3. «DIAGNOSTIC PROCEDURE INSTRUCTIONS»(ref-652232-S26410554662014082300000) provides an overview of each diagnostic category.

The headlamp wash feature shall only be allowed to be activated, if the low or high beam headlamps are active as well.

CONTROL MODULE REFERENCES for scan tool information

1. Ignition OFF, disconnect the KR2 headlamp washer fluid pump relay in the X50A underhood fuse block.
2. Test for less than 5 ohms between ground circuit terminal 85 and ground.
3. If greater than the specified range, test the ground circuit for an open/high resistance.
4. Ignition ON, install a test lamp between the control circuit terminal 86 and ground.
5. Using the scan tool, control the headlamp washers ON and OFF. Verify the test lamp turns on and off.
6. If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K9 BCM.
7. If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the K9 BCM.
8. Ignition OFF, disconnect the harness connector at the G16 headlamp washer fluid pump.
9. Test for less than 5 ohms between the G16 headlamp washer fluid pump ground circuit terminal 2 and ground.
10. If greater than the specified range, test the ground circuit for an open/high resistance.
11. Ignition ON, connect a test lamp between the control circuit terminal 1 and ground. Momentarily connect a 5 A fused jumper wire between the relay circuits 87 and 30. Verify the test lamp illuminates momentarily.
12. If the test lamp does not illuminate momentarily, test the control circuit for an open/high resistance or a short to ground. If the circuit tests normal, test or replace the G16 headlamp washer fluid pump.
13. If the test lamp is always ON, test the control circuit for a short to voltage.
14. If all circuits tests normal, replace the KR2 headlamp washer fluid pump relay.

Static Test

1. Ignition OFF, disconnect the harness connector at the S82 windshield wiper/washer switch.
2. Test for less than 5 ohms between windshield wiper/washer switch terminal 2 and terminal 5 while activating the S82 windshield wiper/washer switch.
3. If greater than the specified range, replace the S82 windshield wiper/washer switch.

Dynamic Test

1. Ignition OFF, disconnect the KR2 headlamp washer fluid pump relay.
2. Install a 30 A fused jumper wire between the relay terminals 86, 87 and 12 V. Install a jumper wire between the relay terminal 85 and ground.
3. Connect a test lamp between relay terminal 30 and ground.
4. Observe the test lamp turns ON and OFF by grounding the relay terminal 85 briefly several times.
5. If the function does not perform as specified, replace the KR2 headlamp washer fluid pump relay.

1. Ignition OFF, disconnect the KR2 headlamp washer fluid pump relay.
2. Test for 60-200 ohms between terminals 85 and 86.
3. If the resistance is not within the specified range, replace the KR2 headlamp washer fluid pump relay.
4. Test for infinite resistance between the following terminals: 30 and 86 30 and 87 30 and 85 85 and 87
5. If not the specified value, replace the KR2 headlamp washer fluid pump relay.
6. Install a 10 A fused jumper wire between relay terminal 85 and 12 V. Install a jumper wire between relay terminal 86 and ground. Test for less than 5 ohms between terminals 30 and 87.
7. If greater than the specified range, replace the KR2 headlamp washer fluid pump relay.

1. Ignition OFF, disconnect the harness connector at the G16 headlamp washer fluid pump.
2. Install a 10 A fused jumper wire between the control terminal 1 and 12 V. Install a jumper wire between the ground terminal 2 and ground.
3. Verify the G16 headlamp washer fluid pump is activated.
4. If the G16 Headlamp Washer Fluid Pump does not activate, replace the G16 headlamp washer fluid pump.