P0694

Technical Definition:

Fan 2 Control Circuit High

Trouble Code: P0694
Address: 0x0694
System: Powertrain
Subsystem: Computer and Auxiliary Output Circuits
Technical Description:

Possible Causes:

Possible Symptoms:

Cooling Fan 2 Relay Control Circuit High

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Open or short cooling fan 2 relay circuit
– Faulty low speed radiator fan relay
– Faulty Front Control Module (FCM)

Specific Makes:

– Radiator fan inoperative
– Possible engine overheating

P0693

Technical Definition:

Fan 2 Control Circuit Low

Trouble Code: P0693
Address: 0x0693
System: Powertrain
Subsystem: Computer and Auxiliary Output Circuits
Technical Description:

Possible Causes:

Possible Symptoms:

Cooling Fan 2 Relay Control Circuit Low

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Open or short cooling fan 2 relay circuit
– Faulty low speed radiator fan relay
– Faulty Front Control Module (FCM)

Specific Makes:

– Radiator fan inoperative
– Possible engine overheating

P0692

Technical Definition:

Fan 1 Control Circuit High

Trouble Code: P0692
Address: 0x0692
System: Powertrain
Subsystem: Computer and Auxiliary Output Circuits
Technical Description:

Possible Causes:

Possible Symptoms:

Cooling Fan 1 Relay Control Circuit High

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Open or short cooling fan 1 relay circuit
– Faulty low speed radiator fan relay
– Faulty Front Control Module (FCM)

Specific Makes:

– Radiator fan inoperative
– Possible engine overheating

P0691

Technical Definition:

Fan 1 Control Circuit Low

Trouble Code: P0691
Address: 0x0691
System: Powertrain
Subsystem: Computer and Auxiliary Output Circuits
Technical Description:

Possible Causes:

Possible Symptoms:

Cooling Fan 1 Relay Control Circuit Low

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Faulty Low Speed Radiator Fan Relay
– Low Speed Radiator Fan Relay harness is open or shorted
– Low Speed Radiator Fan Relay circuit poor electrical connection
– Faulty Electric Fan
– Faulty Engine Control Module (ECM)

Specific Makes:

– Radiator fan inoperative
– Possible engine overheating

P0690

Technical Definition:

Engine Control Module (ECM) / Powertrain Control Module (PCM) Power Relay Sensore Circuit High

Trouble Code: P0690
Address: 0x0690
System: Powertrain
Subsystem: Computer and Auxiliary Output Circuits
Technical Description:

Possible Causes:

Possible Symptoms:

Electronic Control Module Power Relay Sense Circuit High

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Weak battery – Low voltage while cranking
– Faulty Engine Control Module (ECM) relay
– Blown ECM fuse
– Faulty ECM
– ECM harness is open or shorted
– ECM circuit poor electrical connection

Specific Makes:

P068B

Technical Definition:

Engine Control Module (ECM) / Powertrain Control Module (PCM) Power Relay De – Energized Performance Too Late

Trouble Code: P068B
Address: 0x068B
System: Powertrain
Subsystem: Computer and Auxiliary Output Circuits
Technical Description:

Possible Causes:

Possible Symptoms:

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P068A

Technical Definition:

Engine Control Module (ECM) / Powertrain Control Module (PCM) Power Relay De – Energized Performance Too Early

Trouble Code: P068A
Address: 0x068A
System: Powertrain
Subsystem: Computer and Auxiliary Output Circuits
Technical Description:

Possible Causes:

Possible Symptoms:

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P0689

Technical Definition:

Engine Control Module (ECM) / Powertrain Control Module (PCM) Power Relay Sensore Circuit Low

Trouble Code: P0689
Address: 0x0689
System: Powertrain
Subsystem: Computer and Auxiliary Output Circuits
Technical Description:

Possible Causes:

Possible Symptoms:

Electronic Control Module Power Relay Sense Circuit Low

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Weak battery – Low voltage while cranking
– Faulty Engine Control Module (ECM) relay
– Blown ECM fuse
– Faulty ECM
– ECM harness is open or shorted
– ECM circuit poor electrical connection

Specific Makes: