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STATES |
DETAILS/RESULTS/ACTIONS |
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BA1: DETERMINING VEHICLE EQUIPMENT |
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1Determine the vehicle equipment. |
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• Does the car have an automatic transmission? |
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→ Yes |
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Go to BA6 |
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→ No |
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Go to BA2 |
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BA2: CHECKING FUSE F53 (CJB) |
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1Enter the OFF position. |
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2CHECK Fuse F53 (CJB). |
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3Check fuse F53 (10A) |
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• Is the fuse good? |
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→ Yes |
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Go to BA3 |
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→ No |
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INSTALL a new fuse F53 (10A) and CHECK the system for proper operation. If the fuse blows again, LOCATE and REPAIR the short circuit using the wiring diagrams. CHECK the system for proper operation. |
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BA3: CHECKING THE VOLTAGE AT FUSE F53 (CJB) |
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1Connect Fuse F53 (CJB). |
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2Enter the ON position. |
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3Measure the voltage between F53 (CJB) and ground. |
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• Is battery voltage registered? |
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→ Yes |
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Go to BA4 |
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→ No |
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Using the wiring diagrams, LOCATE and REPAIR the open in the electrical supply circuit to fuse F53. INSTALL a new CJB if necessary. CHECK the system for proper operation. |
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BA4: CHECKING THE ELECTRICAL POWER SUPPLY CIRCUIT OF THE GEARBOX SHIFT |
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1Enter the OFF position. |
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2Disconnect C864 transmission switch. |
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3Enter the ON position. |
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4Measure the voltage between pin 2 of the transmission switch connector C864, circuit 15-LG28 (WH/GN), harness side, and ground. |
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• Is battery voltage registered? |
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→ Yes |
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Go to BA5 |
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→ No |
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Using the wiring diagrams, LOCATE and REPAIR the open in the 15-LG28 (White/Green) and 15-LG28A (White/Green) circuits between the fuse and the transmission switch. CHECK the system for proper operation. |
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BA5: CHECKING THE GEARBOX SHIFT |
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1Enter the OFF position. |
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2Disconnect C864 transmission switch. |
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3Install a fused jumper wire (10 A) into the transmission switch connector C864 between pin 2, circuit 15-LG28 (green/white), harness side and pin 1, circuit 15S-LG3 (green/yellow), harness side. |
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4Enter the ON position. |
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5Check the reversing lights. |
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• Are the reversing lights(s) on? |
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→ Yes |
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INSTALL a new transmission shifter. CHECK the system for proper operation. |
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→ No |
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Reversing light not working (left hand drive wagon): Go to BA10 |
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Reversing light not working (right hand drive, station wagon): Go to BA11 |
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Reverse Lights Not Working (4-Door): Go to BA12 |
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Reverse Light Not Working (Left Hand Drive 3/5 Door): Go to BA13 |
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Reverse Light Not Working (Right Hand Drive 3/5 Door): Go to BA14 |
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BA6: CHECKING FUSE F40 (CJB) |
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1Enter the OFF position. |
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2CHECK Fuse F40 (CJB). |
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3Check fuse F40 (10A) |
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• Is the fuse good? |
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→ Yes |
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Go to BA7 |
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→ No |
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INSTALL a new F40 (10A) fuse and CHECK the system for proper operation. If the fuse blows again, LOCATE and REPAIR the short circuit using the wiring diagrams. CHECK the system for proper operation. |
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BA7: CHECKING THE VOLTAGE AT FUSE F40 (CJB) |
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1Connect Fuse F40 (CJB). |
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2Enter the ON position. |
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3Measure the voltage between F40 (CJB) and ground. |
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• Is battery voltage registered? |
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→ Yes |
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Go to BA8 |
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→ No |
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Using the wiring diagrams, LOCATE and REPAIR the open in the electrical supply circuit to fuse F40. INSTALL a new CJB if necessary. CHECK the system for proper operation. |
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BA8: CHECKING THE ELECTRICAL POWER SUPPLY CIRCUIT OF THE TRANSMISSION RANGE SENSOR |
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1Enter the OFF position. |
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2Disconnect C438 Transmission Range Sensor. |
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3Enter the ON position. |
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4Measure the voltage between pin 1 of the transmission range sensor connector C438, circuit 15-TA18 (Green/Orange), harness side and ground. |
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• Is battery voltage registered? |
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→ Yes |
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Go to BA9 |
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→ No |
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Using the wiring diagrams, LOCATE and REPAIR the open in the 15-TA18 (Green/Orange) circuit between splice S54 and the Transmission Range Sensor. CHECK for proper system operation. |
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BA9: CHECKING THE TRANSMISSION RANGE SENSOR |
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1Enter the OFF position. |
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2Disconnect C438 Transmission Range Sensor. |
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3Install a fused jumper wire (10 A) into the Transmission Range Sensor connector C438 between pin 4, circuit 15S-TA38 (GN/BLK) and pin 1, circuit 15-TA18 (GN/ORANGE), harness side. |
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4Enter the ON position. |
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5Check the reversing lights. |
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• Are the reversing lights(s) on? |
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→ Yes |
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INSTALL a new transmission range sensor. CHECK the system for proper operation. |
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→ No |
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Reversing light not working (left hand drive wagon): Go to BA10 |
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Reversing light not working (Right hand drive, station wagon): Go to BA11 |
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Reverse Lights Not Working (4-Door): Go to BA12 |
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Reverse Light Not Working (Left Hand Drive 3/5 Door): Go to BA13 |
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Reverse Light Not Working (Right Hand Drive 3/5 Door): Go to BA14 |
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BA10: CHECKING THE RIGHT TAIL LAMP ASSEMBLY POWER SUPPLY CIRCUIT |
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1Enter the OFF position. |
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2Connect C864 Transmission Switch/C438 Transmission Range Sensor. |
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3Disconnect C475 right rear light assembly. |
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4Enter the ON position. |
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5Engage REVERSE GEAR. |
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6Measure the voltage between pin 4 of connector C475 right tail lamp assembly, circuit 15S-LG9 (black/green), harness side and ground. |
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• Is battery voltage registered? |
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→ Yes |
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Using the wiring diagrams, LOCATE and REPAIR the open in circuit 31-LF24A (Black) and 31-DA18 (Black) between the tail lamp assembly and ground point G46. INSTALL a new tail lamp assembly if necessary. CHECK the system for proper operation. |
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→ No |
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Using the wiring diagrams, LOCATE and REPAIR the open in the electrical circuits between the transmission switch/range sensor and the tail lamp assembly. INSTALL a new tail lamp assembly if necessary. CHECK the system for proper operation. |
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BA11: CHECKING THE ELECTRICAL POWER SUPPLY CIRCUIT OF THE LEFT REAR LAMP ASSEMBLY |
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1Enter the OFF position. |
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2Connect C864 Transmission Switch/C438 Transmission Range Sensor. |
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3Disconnect C474 left rear light assembly. |
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4Enter the ON position. |
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5Engage REVERSE GEAR. |
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6Measure the voltage between pin 4 of connector C474 of the left tail lamp assembly, circuit 15S-LD6 (YE/GN), harness side and ground. |
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• Is battery voltage registered? |
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→ Yes |
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Using the wiring diagrams, LOCATE and REPAIR the open in circuit 31-LF23A (Black) and 31-DA18 (Black) between the tail lamp assembly and ground. INSTALL a new tail lamp assembly if necessary. CHECK the system for proper operation. |
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→ No |
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Using the wiring diagrams, LOCATE and REPAIR the open in the electrical circuits between the transmission switch/range sensor and the tail lamp assembly. INSTALL a new tail lamp assembly if necessary. CHECK the system for proper operation. |
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BA12: CHECKING THE ELECTRICAL POWER SUPPLY CIRCUIT OF THE LEFT REAR LAMP ASSEMBLY |
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1Enter the OFF position. |
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2Connect C864 Transmission Switch/C438 Transmission Range Sensor. |
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3Disconnect C476 left tail light assembly. |
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4Enter the ON position. |
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5Engage REVERSE GEAR. |
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6Measure the voltage between pin 4 of connector C476 left tail lamp assembly, circuit 15S-LG9A (BK/GN), harness side and ground. |
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• Is battery voltage registered? |
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→ Yes |
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Using the wiring diagrams, LOCATE and REPAIR the open in the 31-DA18 (black) circuit between splice S184 and ground point G46. CHECK for proper system operation. |
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→ No |
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Using the wiring diagrams, LOCATE and REPAIR the open in the electrical circuits between the transmission range switch/sensor and splice S211. CHECK the system for proper operation. |
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BA13: CHECKING THE RIGHT REVERSE LAMP POWER SUPPLY CIRCUIT |
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1Enter the OFF position. |
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2Connect C864 Transmission Switch/C438 Transmission Range Sensor. |
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3Disconnect C430 right reverse light. |
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4Enter the ON position. |
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5Engage REVERSE GEAR. |
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6Measure the voltage between pin 1 of connector C430 right reverse light, circuit 15S-LG9 (black/green), harness side and ground. |
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• Is battery voltage registered? |
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→ Yes |
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Using the wiring diagrams, LOCATE and REPAIR the open in circuit 31-LG9 (black) and 31-DA18 (black) between the backup light and ground point G46. INSTALL a new backup light if necessary. CHECK the system for proper operation. |
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→ No |
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Using the wiring diagrams, LOCATE and REPAIR the open in the electrical circuits between the transmission shift switch/range sensor and the backup light. INSTALL a new backup light if necessary. CHECK the system for proper operation. |
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BA14: CHECKING THE LEFT REVERSE LIGHT POWER SUPPLY CIRCUIT |
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1Enter the OFF position. |
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2Connect C864 Transmission Switch/C438 Transmission Range Sensor. |
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3Disconnect C434 right rear light assembly. |
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4Enter the ON position. |
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5Engage REVERSE GEAR. |
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6Measure the voltage between pin 1 of connector C434 left reverse light, circuit 15S-LD6 (YE/GN), harness side and ground. |
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• Is battery voltage registered? |
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→ Yes |
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Using the wiring diagrams, LOCATE and REPAIR the open in circuit 31-LD6 (Black) and 31-DA18 (Black) between the backup light and ground point G46. INSTALL a new backup light if necessary. CHECK the system for proper operation. |
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→ No |
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Using the wiring diagrams, LOCATE and REPAIR the open in the electrical circuits between the transmission shift switch/range sensor and the backup light. INSTALL a new backup light if necessary. CHECK the system for proper operation. |
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PINPOINT TEST BB: SEPARATE REVERSE LIGHT DOESN'T WORK
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STATES |
DETAILS/RESULTS/ACTIONS |
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BB1: IDENTIFYING A NON-WORKING REVERSE LIGHT |
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1Enter the ON position. |
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2Engage REVERSE GEAR. |
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3Check the reversing lights. |
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• Left reverse light not working? |
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→ Yes |
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Go to BB2 |
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→ No |
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Go to BB3 |
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BB2: CHECKING THE LEFT REVERSE LIGHT |
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1Enter the OFF position. |
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2Disconnect C476 left tail light assembly. |
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3Enter the ON position. |
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4Engage REVERSE GEAR. |
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5Measure the voltage between pin 4 of connector C476 left tail lamp assembly, circuit 15S-LG9A (BK/GN), harness side and ground. |
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• Is battery voltage registered? |
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→ Yes |
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Using the wiring diagrams, LOCATE and REPAIR the open in circuit 31-LF23 (Black) between the tail lamp assembly and splice S184. INSTALL a new tail lamp assembly if necessary. CHECK the system for proper operation. |
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→ No |
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Using the wiring diagrams, LOCATE and REPAIR the open in circuit 15S-LG9A (BK/GN) between the tail lamp assembly and splice S211. INSTALL a new tail lamp assembly if necessary. CHECK the system for proper operation. |
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BB3: CHECKING THE RIGHT REVERSE LIGHT |
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1Enter the OFF position. |
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2Disconnect C477 right rear light assembly. |
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3Enter the ON position. |
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4Engage REVERSE GEAR. |
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5Measure the voltage between pin 6 of connector C477 of the right tail lamp assembly, circuit 15S-LG16 (Green/Orange), harness side and ground. |
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• Is battery voltage registered? |
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→ Yes |
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Using the wiring diagrams, LOCATE and REPAIR the open in circuit 31-LF24 (Black) between the tail lamp assembly and splice S184. INSTALL a new tail lamp assembly if necessary. CHECK the system for proper operation. |
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→ No |
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Using the wiring diagrams, LOCATE and REPAIR the open in circuit 15S-LG16 (Green/Orange) between the tail lamp assembly and splice S211. INSTALL a new tail lamp assembly if necessary. CHECK the system for proper operation. |
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PINPOINT TEST BC: REVERSE LIGHTS ARE CONSTANTLY ON
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STATES |
DETAILS/RESULTS/ACTIONS |
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BC1: CHECKING THE SYSTEM USING WDS |
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1Connect the diagnostic tool. |
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2Check the system using WDS. |
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• Are there any diagnostic trouble codes (DTCs)? |
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→ Yes |
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Perform the necessary actions on the DTCs as directed by the WDS. CLEAR the fault memory and CHECK the system for proper operation. |
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→ No |
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Cars with manual transmission: Go to BC2 |
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Cars with automatic transmission: Go to BC3 |
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BC2: CHECKING THE GEARBOX SHIFT |
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1Enter the OFF position. |
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2Disconnect C864 transmission switch. |
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3Enter the ON position. |
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4Check the reversing light(s). |
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• Are the reversing lights(s) on? |
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→ Yes |
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Using the wiring diagrams, LOCATE and REPAIR the short to power in the electrical circuits connected to splice S92. CHECK the system for proper operation. |
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→ No |
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INSTALL a new transmission shifter. CHECK the system for proper operation. |
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BC3: CHECKING THE TRANSMISSION RANGE SENSOR |
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1Enter the OFF position. |
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2Disconnect C438 gearbox switch. |
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3Enter the ON position. |
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4Check the reversing light(s). |
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• Are the reversing lights(s) on? |
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→ Yes |
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Using the wiring diagrams, LOCATE and REPAIR the short to power in the electrical circuits connected to splice S75. CHECK the system for proper operation. |
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→ No |
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INSTALL a new transmission range sensor. CHECK the system for proper operation. |
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[The original version can be found on the website FORDBOOK]