SYMPTOM TROUBLESHOOTING CHART[INSTRUMENT CLUSTER (AJ (3.0L Duratec))]

id0902h7805200

Malfunction

Possible Cause

Action

•  M-MDS cannot communicate with the instrument cluster.

•  Circuit

•  Standard corporate protocol (SCP) (J1850) line

•  Instrument cluster

See No.1 UNABLE TO COMMUNICATE WITH INSTRUMENT CLUSTER[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].

•  M-MDS cannot communicate with the Generic electronic module (GEM).

•  Circuit

•  SCP (J1850) line

•  generic electronic module (GEM)

See No.1 UNABLE TO COMMUNICATE WITH GENERIC ELECTRONIC MODULE (GEM)[GEM].

•  Instrument cluster does not operate.

•  Central junction box (CJB) fuse

•  Battery junction box (BJB) fuse

•  Circuit

•  Instrument cluster

See No.2 INSTRUMENT CLUSTER DOES NOT OPERATE[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].

•  Fuel gauge reading is not correct.

•  Fuel pump unit

•  Circuit

•  Instrument cluster

See No.3 FUEL GAUGE READING IS NOT CORRECT[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].

•  Speedometer/odometer does not operate.

•  Circuit

•  SCP (J1850) line

•  PCM

•  Instrument cluster

See No.4 SPEEDOMETER/ODOMETER DOES NOT OPERATE[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].

•  Speedometer reading is not correct.

•  Speedometer

•  SCP (J1850) line

•  Circuit

•  PCM

•  Instrument cluster

See No.4 SPEEDOMETER/ODOMETER DOES NOT OPERATE[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].

•  Tachometer does not operate.

•  Circuit

•  SCP (J1850) line

•  PCM

•  Instrument cluster

See No.5 TACHOMETER DOES NOT OPERATE[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].

•  Tachometer reading is not correct.

•  Circuit

•  SCP (J1850) line

•  PCM

•  Instrument cluster

See No.5 TACHOMETER DOES NOT OPERATE[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].

•  Water temperature gauge reading is not correct.

•  ECT sensor

•  SCP (J1850) line

•  Circuit

•  Instrument cluster

See No.6 WATER TEMPERATURE GAUGE READING IS NOT CORRECT[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].

•  Brake system warning light does not illuminate/stays on.

•  Brake system warning light bulb

•  Circuit

•  Parking brake switch

•  Brake fluid level sensor

•  Instrument cluster

See No.7 BRAKE SYSTEM WARNING LIGHT DOES NOT ILLUMINATE/STAYS ON[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].

•  Fuel level warning light does not illuminate/stays on.

•  Fuel pump unit

•  Miniature bulb

•  Instrument cluster

See No.8 FUEL LEVEL WARNING LIGHT DOES NOT ILLUMINATE/STAYS ON[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].

•  Security light does not operate. (if equipped)

•  Security light LED bulb assembly

•  SCP (J1850) line

•  Circuit

•  Instrument cluster

•  PCM

•  Integrated passive anti-theft system

See No.9 SECURITY LIGHT DOES NOT OPERATE[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].

•  Security light stays on. (if equipped)

•  Circuit

•  PCM

•  Integrated passive anti-theft system

See No.1 SECURITY LIGHT DOES NOT OPERATE CORRECTLY[IMMOBILIZER SYSTEM (PATS) (AJ (3.0L Duratec))].

•  Generator warning light does not illuminate.

•  Generator warning light bulb

•  Circuit

•  Generator

•  PCM

•  Instrument cluster

See No.10 GENERATOR WARNING LIGHT DOES NOT ILLUMINATE[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].

•  Generator warning light stays on.

•  Circuit

•  Generator

•  Refer to Section 01-17.

•  Oil pressure warning light does not operate/stay on.

•  Circuit

•  Oil pressure switch

•  Oil pressure is low.

•  PCM

•  Instrument cluster

See No.11 OIL PRESSURE WARNING LIGHT DOES NOT OPERATE/STAY ON[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].

•  ABS warning light does not operate.

•  ABS warning light bulb

•  Circuit

•  Instrument cluster

•  ABS HU/CM

See No.12 ABS WARNING LIGHT DOES NOT OPERATE[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].

•  ABS warning light stays on.

•  Circuit

•  ABS HU/CM

•  Refer to Section 04.

•  Air bag system warning light does not operate.

•  Air bag system warning light bulb

•  Circuit

•  Instrument cluster

•  SAS control module

See No.13 AIR BAG SYSTEM WARNING LIGHT DOES NOT OPERATE[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].

•  Air bag system warning light stays on.

•  Circuit

•  SAS control module

•  Refer to Section 08.

•  Turn indicator light (LH) does not operate/stays on.

•  Turn indicator light bulb

•  Circuit

•  Instrument cluster

See No.14 TURN INDICATOR LIGHT (LH) DOES NOT OPERATE/STAYS ON[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].

•  Turn indicator light (RH) does not operate/stays on.

•  Turn indicator light bulb

•  Circuit

•  Instrument cluster

See No.15 TURN INDICATOR LIGHT (RH) DOES NOT OPERATE/STAYS ON[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].

•  High-beam indicator light does not operate.

•  High-beam indicator light bulb

•  Circuit

•  Instrument cluster

See No.16 HIGH-BEAM INDICATOR LIGHT DOES NOT OPERATE[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].

•  Malfunction indicator lamp (MIL) does not operate.

•  Malfunction indicator lamp (MIL)

•  SCP (J1850) line

•  Circuit

•  Instrument cluster

•  PCM

See No.17 MALFUNCTION INDICATOR LAMP (MIL) DOES NOT OPERATE[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].

•  Malfunction indicator lamp (MIL) stays on.

•  Circuit

•  PCM

•  Refer to Powertrain control/emission diagnosis.

•  Seat belt warning light does not operate. (Chime operates.)

•  Seat belt warning light bulb

•  Circuit

•  Instrument cluster

•  Seat belt retractor switch (a part of seat belt retractor)

See No.18 SEAT BELT WARNING LIGHT DOES NOT OPERATE (CHIME OPERATES)[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].

•  Door ajar warning light does not operate. (Chime operates.)

•  Door ajar warning light bulb

•  Circuit

•  Generic electronic module (GEM)

•  Instrument cluster

See No.19 DOOR AJAR WARNING LIGHT DOES NOT OPERATE (CHIME OPERATES)[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].

•  O/D OFF indicator light does not operate.

•  O/D OFF indicator light bulb

•  SCP (J1850) line

•  Circuit

•  PCM

•  Instrument cluster

See No.20 O/D OFF INDICATOR LIGHT DOES NOT OPERATE[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].

•  O/D OFF indicator light stays on.

•  Circuit

•  PCM

•  Instrument cluster

•  Refer to Section 05.

•  4WD indicator light does not operate.

•  4WD indicator light bulb

•  Circuit

•  4WD relay

•  Instrument cluster

See No.21 4WD INDICATOR LIGHT DOES NOT OPERATE[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].

•  Selector indicator light (PRND21) does not operate.

•  Circuit

•  Instrument cluster

•  Transaxle range sensor

•  Parking interlock module

See No.22 SELECTOR INDICATOR LIGHT (PRND21) DOES NOT OPERATE[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].

Malfunction	Possible Cause	Action
• M-MDS cannot communicate with the instrument cluster.	• Circuit • Standard corporate protocol (SCP) (J1850) line • Instrument cluster	See No.1 UNABLE TO COMMUNICATE WITH INSTRUMENT CLUSTER[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].
• M-MDS cannot communicate with the Generic electronic module (GEM).	• Circuit • SCP (J1850) line • generic electronic module (GEM)	See No.1 UNABLE TO COMMUNICATE WITH GENERIC ELECTRONIC MODULE (GEM)[GEM].
• Instrument cluster does not operate.	• Central junction box (CJB) fuse • Battery junction box (BJB) fuse • Circuit • Instrument cluster	See No.2 INSTRUMENT CLUSTER DOES NOT OPERATE[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].
• Fuel gauge reading is not correct.	• Fuel pump unit • Circuit • Instrument cluster	See No.3 FUEL GAUGE READING IS NOT CORRECT[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].
• Speedometer/odometer does not operate.	• Circuit • SCP (J1850) line • PCM • Instrument cluster	See No.4 SPEEDOMETER/ODOMETER DOES NOT OPERATE[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].
• Speedometer reading is not correct.	• Speedometer • SCP (J1850) line • Circuit • PCM • Instrument cluster	See No.4 SPEEDOMETER/ODOMETER DOES NOT OPERATE[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].
• Tachometer does not operate.	• Circuit • SCP (J1850) line • PCM • Instrument cluster	See No.5 TACHOMETER DOES NOT OPERATE[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].
• Tachometer reading is not correct.	• Circuit • SCP (J1850) line • PCM • Instrument cluster	See No.5 TACHOMETER DOES NOT OPERATE[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].
• Water temperature gauge reading is not correct.	• ECT sensor • SCP (J1850) line • Circuit • Instrument cluster	See No.6 WATER TEMPERATURE GAUGE READING IS NOT CORRECT[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].
• Brake system warning light does not illuminate/stays on.	• Brake system warning light bulb • Circuit • Parking brake switch • Brake fluid level sensor • Instrument cluster	See No.7 BRAKE SYSTEM WARNING LIGHT DOES NOT ILLUMINATE/STAYS ON[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].
• Fuel level warning light does not illuminate/stays on.	• Fuel pump unit • Miniature bulb • Instrument cluster	See No.8 FUEL LEVEL WARNING LIGHT DOES NOT ILLUMINATE/STAYS ON[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].
• Security light does not operate. (if equipped)	• Security light LED bulb assembly • SCP (J1850) line • Circuit • Instrument cluster • PCM • Integrated passive anti-theft system	See No.9 SECURITY LIGHT DOES NOT OPERATE[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].
• Security light stays on. (if equipped)	• Circuit • PCM • Integrated passive anti-theft system	See No.1 SECURITY LIGHT DOES NOT OPERATE CORRECTLY[IMMOBILIZER SYSTEM (PATS) (AJ (3.0L Duratec))].
• Generator warning light does not illuminate.	• Generator warning light bulb • Circuit • Generator • PCM • Instrument cluster	See No.10 GENERATOR WARNING LIGHT DOES NOT ILLUMINATE[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].
• Generator warning light stays on.	• Circuit • Generator	• Refer to Section 01-17.
• Oil pressure warning light does not operate/stay on.	• Circuit • Oil pressure switch • Oil pressure is low. • PCM • Instrument cluster	See No.11 OIL PRESSURE WARNING LIGHT DOES NOT OPERATE/STAY ON[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].
• ABS warning light does not operate.	• ABS warning light bulb • Circuit • Instrument cluster • ABS HU/CM	See No.12 ABS WARNING LIGHT DOES NOT OPERATE[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].
• ABS warning light stays on.	• Circuit • ABS HU/CM	• Refer to Section 04.
• Air bag system warning light does not operate.	• Air bag system warning light bulb • Circuit • Instrument cluster • SAS control module	See No.13 AIR BAG SYSTEM WARNING LIGHT DOES NOT OPERATE[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].
• Air bag system warning light stays on.	• Circuit • SAS control module	• Refer to Section 08.
• Turn indicator light (LH) does not operate/stays on.	• Turn indicator light bulb • Circuit • Instrument cluster	See No.14 TURN INDICATOR LIGHT (LH) DOES NOT OPERATE/STAYS ON[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].
• Turn indicator light (RH) does not operate/stays on.	• Turn indicator light bulb • Circuit • Instrument cluster	See No.15 TURN INDICATOR LIGHT (RH) DOES NOT OPERATE/STAYS ON[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].
• High-beam indicator light does not operate.	• High-beam indicator light bulb • Circuit • Instrument cluster	See No.16 HIGH-BEAM INDICATOR LIGHT DOES NOT OPERATE[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].
• Malfunction indicator lamp (MIL) does not operate.	• Malfunction indicator lamp (MIL) • SCP (J1850) line • Circuit • Instrument cluster • PCM	See No.17 MALFUNCTION INDICATOR LAMP (MIL) DOES NOT OPERATE[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].
• Malfunction indicator lamp (MIL) stays on.	• Circuit • PCM	• Refer to Powertrain control/emission diagnosis.
• Seat belt warning light does not operate. (Chime operates.)	• Seat belt warning light bulb • Circuit • Instrument cluster • Seat belt retractor switch (a part of seat belt retractor)	See No.18 SEAT BELT WARNING LIGHT DOES NOT OPERATE (CHIME OPERATES)[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].
• Door ajar warning light does not operate. (Chime operates.)	• Door ajar warning light bulb • Circuit • Generic electronic module (GEM) • Instrument cluster	See No.19 DOOR AJAR WARNING LIGHT DOES NOT OPERATE (CHIME OPERATES)[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].
• O/D OFF indicator light does not operate.	• O/D OFF indicator light bulb • SCP (J1850) line • Circuit • PCM • Instrument cluster	See No.20 O/D OFF INDICATOR LIGHT DOES NOT OPERATE[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].
• O/D OFF indicator light stays on.	• Circuit • PCM • Instrument cluster	• Refer to Section 05.
• 4WD indicator light does not operate.	• 4WD indicator light bulb • Circuit • 4WD relay • Instrument cluster	See No.21 4WD INDICATOR LIGHT DOES NOT OPERATE[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].
• Selector indicator light (PRND21) does not operate.	• Circuit • Instrument cluster • Transaxle range sensor • Parking interlock module	See No.22 SELECTOR INDICATOR LIGHT (PRND21) DOES NOT OPERATE[INSTRUMENT CLUSTER (AJ (3.0L Duratec))].