Ford F150 Pickup. Instruction - part 322

WIPERS AND WASHERS - GEM/CTM

Refer to WIPER/WASHER for schematic and connector information. 

Special Tool(s) 

Fig. 3: Identifying Special Tools 
Courtesy of FORD MOTOR CO. 

Inspection and Verification 

1. The wiper/washer system is a generic electronic module (GEM)/central timer module (CTM) controlled 

system.  

2. Verify the customer concern by operating the wiper/washer system.  

3. Visually inspect for the following obvious signs of mechanical and electrical damage. 

 

2003 Ford Pickup F150 

2003 ACCESSORIES AND EQUIPMENT Wipers and Washers - F150 Pickup

  

Fig. 4: Visual Inspection Chart 
Courtesy of FORD MOTOR CO. 

4. If the concern remains after the inspection, connect the diagnostic tool to the data link connector (DLC) 

located beneath the instrument panel and select the vehicle to be tested from the diagnostic tool menu. If 
the diagnostic tool does not communicate with the vehicle: 

z

check that the program card is correctly installed.  

z

check the connections to the vehicle.  

z

check the ignition switch position.  

5. If the diagnostic tool still does not communicate with the vehicle, refer to the diagnostic tool instruction.  

6. CARRY OUT the DATA LINK DIAGNOSTIC TEST. If the diagnostic tool responds with: 

z

CKT914, CKT915 or CKT70 = ALL ECUS NO RESP/NOT EQUIP, refer to MODULE 
COMMUNICATIONS NETWORK - F150 .  

z

NO RESP/NOT EQUIP for GEM/CTM, go to PINPOINT TEST G: NO COMMUNICATION 
WITH MODULE .  

z

SYSTEM PASSED, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the 
continuous DTCs and carry out self-test diagnostics for the GEM/CTM.  

7. If the DTCs retrieved are related to the concern, go to the GEM/CTM Diagnostic Trouble Code (DTC) 

Index to continue diagnostics.  

8. If no DTCs related to the concern are retrieved, proceed toSymptom Chart to continue diagnostics.  

GEM/CTM Diagnostic Trouble Code (DTC) Index 

GEM/CTM DIAGNOSTIC TROUBLE CODE (DTC) INDEX 

DTC

Description

Source

Action

B1302

Accessory Delay Relay Coil Circuit 

GEM

REFER to GLASS, FRAMES AND 

 

2003 Ford Pickup F150 

2003 ACCESSORIES AND EQUIPMENT Wipers and Washers - F150 Pickup

  

Failure

MECHANISMS - F150 .

B1304

Accessory Delay Relay Coil Circuit 

Short to Battery

GEM

REFER to GLASS, FRAMES AND 

MECHANISMS - F150 .

B1313 Battery Saver Relay Coil Circuit Failure GEM/CTM

REFER to INTERIOR LIGHTING -

F150 .

B1315 Battery Saver Relay Coil Circuit Short 

to Battery

GEM/CTM

REFER to INTERIOR LIGHTING -

F150 .

B1317

Battery Voltage High

GEM/CTM

REFER to GENERATORS & 

REGULATORS - F150 PICKUP .

B1318

Battery Voltage Low

GEM/CTM

REFER to GENERATORS & 

REGULATORS - F150 PICKUP .

B1322

Driver Door Ajar Circuit Short to 

Ground

GEM/CTM

REFER to INTERIOR LIGHTING -

F150 .

B1323

Door Ajar Lamp Circuit Failure

GEM/CTM

REFER to INSTRUMENT CLUSTER-

CONVENTIONAL - F150 .

B1325

Door Ajar Lamp Circuit Short to 

Battery

GEM/CTM

REFER to INSTRUMENT CLUSTER-

CONVENTIONAL - F150 .

B1330

Passenger Door Ajar Circuit Short to 

Ground

GEM/CTM

REFER to INTERIOR LIGHTING -

F150 .

B1340 Chime Input Request Circuit Short to 

Ground

GEM/CTM REFER to WARNING DEVICES - F150 .

B1342

ECU Is Defective

GEM/CTM

REFER to MULTIFUNCTION 

ELECTRONIC MODULE - F150 .

B1352

Ignition Key-In Circuit Failure

GEM/CTM REFER to WARNING DEVICES - F150 .

B1355

Ignition Run Circuit Failure

GEM/CTM

REFER to STEERING COLUMN 

SWITCHES - F150 PICKUP .

B1359

Ignition Run/Acc Circuit Failure

GEM/CTM

REFER to STEERING COLUMN 

SWITCHES - F150 PICKUP .

B1365 Ignition Start Circuit Short to Battery

GEM/CTM

REFER to STEERING COLUMN 

SWITCHES - F150 PICKUP .

B1371 Illuminated Entry Relay Circuit Failure GEM/CTM

REFER to INTERIOR LIGHTING -

F150 .

B1373

Illuminated Entry Relay Short to 

Battery

GEM/CTM

REFER to INTERIOR LIGHTING -

F150 .

B1398

Driver Power Window One Touch 

Window Relay Circuit Failure

GEM

REFER to GLASS, FRAMES AND 

MECHANISMS - F150 .

B1400

Driver Power Window One Touch 

Window Relay Circuit Short to Battery

GEM

REFER to GLASS, FRAMES AND 

MECHANISMS - F150 .

B1405

Driver Power Window Down Circuit 

Short to Battery

GEM

REFER to GLASS, FRAMES AND 

MECHANISMS - F150 .

B1410 Driver Power Window Motor Circuit 

Failure

GEM

REFER to GLASS, FRAMES AND 

MECHANISMS - F150 .

B1426

Lamp Safety Belt Circuit Short to 

Battery

GEM/CTM

REFER to INSTRUMENT CLUSTER-

CONVENTIONAL - F150 .

 

2003 Ford Pickup F150 

2003 ACCESSORIES AND EQUIPMENT Wipers and Washers - F150 Pickup

  

B1428

Lamp Safety Belt Circuit Failure

GEM/CTM

REFER to INSTRUMENT CLUSTER-

CONVENTIONAL - F150 .

B1431 Wiper Brake/Run Relay Circuit Failure GEM/CTM

REFER to SYMPTOM CHART .

B1432 Wiper Brake/Run Relay Circuit Short to 

Battery

GEM/CTM

GO to PINPOINT TEST A .

B1434 Wiper Hi/Low Speed Relay Coil Circuit 

Failure

GEM/CTM

GO to PINPOINT TEST C .

B1436 Wiper Hi/Low Speed Relay Coil Circuit 

Short to Battery

GEM/CTM

GO to PINPOINT TEST C .

B1438

Wiper Mode Select Switch Circuit 

Failure

GEM/CTM

REFER to SYMPTOM CHART .

B1441

Wiper Mode Select Switch Circuit 

Short to Ground

GEM/CTM

REFER to SYMPTOM CHART .

B1446

Wiper Park Sense Circuit Failure

GEM/CTM

GO to PINPOINT TEST D .

B1450

Wiper Wash/Delay Switch Circuit 

Failure

GEM/CTM

REFER to SYMPTOM CHART .

B1453 Wiper Wash/Delay Switch Circuit Short 

to Ground

GEM/CTM

REFER to SYMPTOM CHART .

B1458

Wiper Washer Pump Motor Relay 

Circuit Failure

GEM/CTM

GO to PINPOINT TEST E .

B1460 Wiper Washer Pump Motor Relay Coil 

Circuit Short to Battery

GEM/CTM

GO to PINPOINT TEST E .

B1462

Safety Belt Switch Circuit Failure

GEM/CTM REFER to WARNING DEVICES - F150 .

B1466

Wiper Hi/Low Speed Not Switching

GEM/CTM

GO to PINPOINT TEST C .

B1467

Wiper Hi/Low Speed Circuit Motor 

Short to Battery

CTM

GO to PINPOINT TEST B .

B1473 Wiper Low Speed Circuit Motor Failure GEM/CTM

REFER to SYMPTOM CHART .

B1476

Wiper High Speed Circuit Motor 

Failure

GEM/CTM

REFER to SYMPTOM CHART .

B1483

Brake Pedal Input Circuit Failure

GEM

REFER to TRANSFER CASE -

GENERAL INFORMATION - F150 

PICKUP .

B1485 Brake Pedal Input Circuit Battery Short

GEM

REFER to TRANSFER CASE -

GENERAL INFORMATION - F150 

PICKUP .

B1577

Lamp Park Input Circuit Short to 

Battery

GEM/CTM REFER to WARNING DEVICES - F150 .

B1610 Illuminated Entry Input Short Circuit to 

Ground

GEM

REFER to INTERIOR LIGHTING -

F150 .

B1840

Wiper Front Power Circuit Failure

GEM/CTM

GO to PINPOINT TEST A .

P0500

Vehicle Speed Sensor Malfunction

GEM

REFER to TRANSFER CASE -

GENERAL INFORMATION - F150 

PICKUP .

 

2003 Ford Pickup F150 

2003 ACCESSORIES AND EQUIPMENT Wipers and Washers - F150 Pickup