Pinpoint tests of the instrument cluster (Focus 1)

A1: CHECKING THE OPERATION OF THE PARKING LIGHTS

1Enter the OFF position.

2Set the parking light switch to the ON position.

• Are the parking lights and license plate lights on?

→ Yes

INSTALL a new headlight switch. CHECK the system for proper operation.

→ No

CHECK fuse 32 (10A).

If the fuse is good, perform the exterior light diagnostics. Refer to Section 417-01 for additional information.

If the fuse blows, INSTALL a new fuse. CHECK the system for proper operation. If the fuse blows again, CHECK for a short to ground, REPAIR if necessary.

B1: CHECKING THE INSTRUMENT PANEL LIGHT

1Set the headlight switch to the ON position.

• Is it just the instrument panel backlight that doesn"t work?

→ Yes

Set the headlight switch to the OFF position. Go to B2

In vehicles with Duratec ST engine, if the oil pressure and oil temperature cluster illumination does not work. Go to B4.

→ No

If the exterior lights do not operate, refer to Section 417-01 for additional information. If all control lights do not operate, GO to Pinpoint Test A.

B2: CHECKING ELECTRICAL CIRCUIT 29S-GG14 (ORANGE) FOR VOLTAGE

1Enter the OFF position.

2Disconnect C809 instrument cluster.

3Make sure the instrument lighting dimmer is set to the maximum brightness setting.

4Set the headlight switch to the ON position.

5Measure the voltage between pin 3 C809 of the instrument cluster, circuit 29S-GG14 (orange), harness side, and ground.

• Is the voltage greater than 10 V?

→ Yes

Go to B3.

→ No

Repair the electrical circuit. CHECK the system for proper operation.

B3: CHECKING ELECTRICAL CIRCUIT 91-GG14 (BLACK/ORANGE) FOR OPEN

1Set the headlight switch to the OFF position.

2Measure the resistance between pin 2 C809 of the instrument cluster, circuit 91-GG14 (black/orange), harness side, and ground.

• Resistance less than 5 ohms?

→ Yes

CHECK the condition of the bulbs. If necessary, INSTALL new bulbs. If the bulbs are OK, INSTALL a new instrument cluster. For additional information, refer to Section 413-01. CHECK the system for proper operation.

→ No

REPAIR the electrical circuit. CHECK the system for proper operation.

B4: CHECKING THE OIL PRESSURE AND OIL TEMPERATURE DISPLAY BACKLIGHT

NOTE:The Oil Pressure and Oil Temperature Display Light harness is connected through the Main Instrument Cluster Light harness. If the Main Instrument Cluster Light is faulty, the Oil Pressure and Oil Temperature Display Light may also not function. CHECK the Main Instrument Cluster Light harness before attempting to diagnose the Oil Pressure and Oil Temperature Display Light.

1Set the headlight switch to the ON position.

• Only the oil pressure and oil temperature cluster lights do not work?

→ Yes

Set the headlight switch to the OFF position. Go to B5

→ No

If the exterior lights do not operate, Refer to Section 417-01 for additional information. If all control lights do not operate, GO to Pinpoint Test A.

B5: CHECKING ELECTRICAL CIRCUIT 29S-GE6A (ORANGE-YELLOW) FOR VOLTAGE

1Enter the OFF position.

2Disconnect C853 oil pressure and oil temperature unit.

3Make sure that the instrument lighting dimmer is set to the maximum brightness setting.

4Set the headlight switch to the ON position.

5Measure the voltage between pin 8 C853 of the oil pressure/oil temperature display, circuit 29S-GE6A (orange/yellow), harness side, and ground.

• Is the voltage greater than 10 V?

→ Yes

Go to B6.

→ No

REPAIR the electrical circuit. CHECK the system for proper operation.

B6: CHECKING ELECTRICAL CIRCUIT 91-GE6 (BLACK/YELLOW) FOR OPEN

1Set the headlight switch to the OFF position.

2Measure the resistance between pin 11 C853 of the instrument cluster, circuit 91-GE6 (black/yellow), harness side, and ground.

• Resistance less than 5 ohms?

→ Yes

CHECK the condition of the bulbs. If necessary, INSTALL new bulbs. If the bulbs are good, INSTALL a new oil pressure and oil temperature display. Refer to Section 413-01 for additional information. CHECK the system for proper operation.

→ No

Repair the electrical circuit. CHECK the system for proper operation.

C1: CHECKING THE VOLTAGE IN THE ELECTRICAL CIRCUIT 29S-LH27 (ORANGE-GREEN)

1Enter the OFF position.

2Disconnect the C493 climate control panel illumination lamps.

3Make sure that the instrument lighting dimmer is set to the maximum brightness setting.

4Set the headlight switch to the ON position.

5Measure the voltage between pin 2 C493 of the climate control panel illumination lamp, circuit 29S-LH27 (orange/green), harness side, and ground.

• Is the voltage greater than 10 V?

→ Yes

Go to C2.

→ No

REPAIR the electrical circuit. CHECK the system for proper operation.

C2: CHECK ELECTRICAL CIRCUIT 31-LH27 (BLACK) FOR OPEN

1Measure the resistance between pin 1 C493 of the climate control panel illumination lamp of the 31-LH27 electrical circuit (black), harness side, and ground.

• Resistance less than 5 ohms?

→ Yes

INSTALL a new climate control panel light bulb. CHECK that the system is operating correctly.

→ No

REPAIR the electrical circuit. CHECK the system for proper operation.

D1: CHECKING THE VOLTAGE IN THE ELECTRICAL CIRCUIT OF THE AUDIO UNIT BACKLIGHT LAMPS 29S-LK34 (ORANGE-BLUE)

1Enter the OFF position.

2Disconnect C443 radio.

3Make sure that the instrument lighting dimmer is set to the maximum brightness setting.

4Set the headlight switch to the ON position.

5Measure the voltage between pin 4 C443 of the audio unit, circuit 29S-LK34 (orange/black), harness side, and ground.

• Is the voltage greater than 10 V?

→ Yes

INSTALL a new audio unit. Refer to Section 415-01 for additional information. CHECK the system for proper operation.

→ No

Repair the electrical circuit. CHECK the system for proper operation.

E1: CHECKING THE VOLTAGE IN THE ELECTRICAL CIRCUIT 29S-LK21 (ORANGE-BLACK)

1Make sure that the instrument lighting dimmer is set to the maximum brightness setting.

2Set the headlight switch to the ON position.

3Measure the voltage between pin 4 C931 of the gear shift lever, circuit 29S-LK21 (OR/BLK), harness side, and ground.

• Is the voltage greater than 10 V?

→ Yes

Go to E2.

→ No

REPAIR the electrical circuit. CHECK the system for proper operation.

E2: CHECK ELECTRICAL CIRCUIT 31-TA34 (BLACK) FOR OPEN

1Measure the resistance between pin 1 C931 of the gear shift lever, circuit 31-TA34 (black), harness side and ground.

• Resistance less than 5 ohms?

→ Yes

INSTALL a new shift lever light socket. CHECK the system for proper operation.

→ No

REPAIR the electrical circuit. CHECK the system for proper operation.

F1: CHECKING VOLTAGE IN ELECTRICAL CIRCUIT 29S-LK15 (ORANGE)

1Make sure that the instrument lighting dimmer is set to the maximum brightness setting.

2Set the headlight switch to the ON position.

3Measure the voltage between pin 1 C911 cigarette lighter, circuit 29S-LK15 (orange), harness side, and ground.

• Is the voltage greater than 10 V?

→ Yes

Go to F2.

→ No

Repair the electrical circuit. CHECK the system for proper operation.

F2: CHECKING ELECTRICAL CIRCUIT 31-HA6 (BLACK) FOR OPEN

1Measure the resistance between pin 1 C912 cigarette lighter, circuit 31-HA6 (black), harness side, and ground.

• Resistance less than 5 ohms?

→ Yes

INSTALL the new cigarette lighter socket. CHECK the system for proper operation.

→ No

REPAIR the electrical circuit. CHECK the system for proper operation.

G1: CHECKING THE VOLTAGE SUPPLIED TO THE INOPERATIVE DOOR LOCK/UNLOCK SWITCH

1Enter the OFF position.

2Disconnect the Inoperative Switch.

3Enter the ON position.

4Make sure that the instrument lighting dimmer is set to the maximum brightness setting.

5Set the headlight switch to the ON position.

6Measure the voltage between door lock/unlock switch pin 10 C41, circuit 15-LH28 (GN/YE) (left side)/pin 17 C43, circuit 15-LH42 (GN/BU) (right side), harness side and ground.

• Is the voltage greater than 10 V?

→ Yes

Go to G2.

→ No

REPAIR circuit(s) 15-LH28 (green/yellow)/circuit 15-LH42 (green/blue). CHECK for proper system operation.

G2: CHECKING THE ELECTRICAL GROUND CIRCUIT OF THE INOPERATING SWITCH FOR AN OPEN CIRCUIT

1Enter the OFF position.

2Measure the resistance between door lock/unlock switch pin 2 C41, circuit 31-DA11 (Black) (left side)/pin 2 C43, circuit 31-DA12 (Black) (right side), harness side and ground

• Resistance less than 5 ohms?

→ Yes

INSTALL a new door lock/unlock switch. CHECK the system for proper operation.

→ No

REPAIR electrical circuit(s) 31-DA11/31-DA12 (black). CHECK correct system operation.

H1: CHECKING THE VOLTAGE IN THE ELECTRIC CIRCUIT 29S-LH45 (ORANGE-WHITE)

1Disconnect C717 traction control system switch.

2Make sure that the instrument lighting dimmer is set to the maximum brightness setting.

3Set the headlight switch to the ON position.

4Measure the voltage between pin 8 C717 of circuit 29S-LH45 (orange/white), harness side, and ground.

• Is the voltage greater than 10 V?

→ Yes

Go to H2.

→ No

REPAIR the electrical circuit. CHECK the system for proper operation.

H2: CHECK ELECTRICAL CIRCUIT 91-LH45 (BLACK/WHITE) FOR OPEN

1Measure the resistance between pin 7 C717, circuit 91-LH45 (BK/WH), harness side, and ground.

• Resistance less than 5 ohms?

→ Yes

INSTALL a new traction control system disable switch. CHECK the system for proper operation.

→ No

Repair the electrical circuit. CHECK the system for proper operation.

I1: CHECKING VOLTAGE IN ELECTRICAL CIRCUIT 29S-LG8A (ORANGE)

1Disconnect C458 hazard warning light buttons.

2Make sure that the instrument lighting dimmer is set to the maximum brightness setting.

3Set the headlight switch to the ON position.

4Measure the voltage between pin 4 C458 of the hazard warning switch, circuit 29S-LG8A (orange), harness side and ground.

• Is the voltage greater than 10 V?

→ Yes

Go to I2.

→ No

REPAIR the electrical circuit. CHECK the system for proper operation.

I2: CHECK ELECTRICAL CIRCUIT 91-LG8 (BLACK/ORANGE) FOR OPEN

1Measure the resistance between pin 10 C458 of the hazard warning switch, circuit 91-LG8 (black/orange), harness side and ground.

• Resistance less than 5 ohms?

→ Yes

INSTALL a new hazard warning light button. CHECK that the system is operating correctly.

→ No

REPAIR the electrical circuit. CHECK the system for proper operation.

J1: CHECK THE INOPERATING SEAT HEATING SWITCH CIRCUIT FOR VOLTAGE

1Disconnect the Inoperative Seat Heater Switch.

2Make sure that the instrument lighting dimmer is set to the maximum brightness setting.

3Set the headlight switch to the ON position.

4Measure the voltage between seat heater switch pin 8 C694 (LH side), circuit 29S-LH29 (OG)/pin 8 C695 (RH side), circuit 29S-LH43 (OG) on the harness side and ground.

• Is the voltage greater than 10 V?

→ Yes

Go to J2.

→ No

REPAIR electrical circuit 29S-LH29 (orange-yellow) / electrical circuit 29S-LH43 (orange-blue) respectively. CHECK the correct operation of the system.

J2: CHECK THE INOPERATIVE SEAT HEATING SWITCH GROUND CIRCUIT FOR OPEN

1Measure the resistance between pin 4 C694 (left side) of circuit 31-LH29 (black)/pin 4 C695 (right side) of circuit 31-LH43 (black), harness side, and ground.

• Resistance less than 5 ohms?

→ Yes

INSTALL a new heated seat switch. CHECK the system for proper operation.

→ No

REPAIR circuit 31-LH29 (black)/circuit 31-LH43 (black) respectively. CHECK the system for proper operation.