Scheme 1
- Verify the customer concern by operating the headlamps.
- Visually inspect for obvious signs of mechanical and electrical damage; refer to the following chart: Visual Inspection Chart
- If the inspection reveals obvious concern(s) that can be readily identified, repair as necessary.
- If the cause of the fault is not visually evident, proceed to the WDS or equivalent Tester diagnostics.
- If the concern remains after the inspection, connect the WDS or equivalent Tester to the data link connector (DLC) located beneath the instrument panel and select the vehicle to be tested from the WDS or equivalent Tester menu. If the WDS or equivalent Tester does not communicate with the vehicle: check that the program card is correctly installed. check the connections to the vehicle. check the ignition switch position.
- If the WDS or equivalent Tester still does not communicate with the vehicle, refer to the WDS or equivalent Tester manual.
- Carry out the DATA LINK DIAGNOSTIC TEST. If the WDS or equivalent Tester responds with: CKT914, CKT915 or CKT70 = ALL ECUS NO RESP/NOT EQUIP, refer to «COMMUNICATIONS NETWORK»(ref-178558-S32934034992005061700000) . NO RESP/NOT EQUIP for hybrid electronic cluster (instrument cluster), refer to «PINPOINT TEST 1: BOTH HEADLAMPS ARE INOPERATIVE»(ref-178647-S02439418262005061800000) . SYSTEM PASSED, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out self-test diagnostics for the instrument cluster.
- If the DTCs retrieved are related to the concern, go to «GEM Diagnostic Trouble Code (DTC) Index»(ref-178647-S16369210662005061800000) to continue diagnostics.
- If no DTCs related to the concern are retrieved, proceed to «SYMPTOM TROUBLESHOOTING CHART - HEADLAMPS»(ref-178647-S36980024892005061800000) .
Scheme 2
Scheme 3
Scheme 4
| PINPOINT TEST | DESCRIPTION |
|---|---|
| PINPOINT TEST 1 | BOTH HEADLAMPS ARE INOPERATIVE |
| PINPOINT TEST 2 | THE LOW BEAM HEADLAMPS ARE INOPERATIVE |
| PINPOINT TEST 3 | THE HIGH BEAM HEADLAMPS ARE INOPERATIVE |
| PINPOINT TEST 4 | ONE LOW BEAM HEADLAMP IS INOPERATIVE |
| PINPOINT TEST 5 | ONE HIGH BEAM HEADLAMP IS INOPERATIVE |
| PINPOINT TEST 6 | THE HEADLAMPS ARE ON CONTINUOUSLY |
| PINPOINT TEST 7 | THE FLASH-TO-PASS FEATURE IS INOPERATIVE |
PINPOINT TEST
Scheme 5
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Scheme 7
Scheme 8
Scheme 9
Scheme 10
Scheme 11
Scheme 12
Scheme 13
Scheme 14
Scheme 15
Scheme 16
Scheme 17
Scheme 18
- Verify the customer concern by operating the stoplamps.
- Visually inspect for obvious signs of mechanical and electrical damage. Visual Inspection Chart
- If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
- If the fault is not visually evident, verify the symptom and proceed to «SYMPTOM TROUBLESHOOTING CHART - STOP LAMPS»(ref-178647-S02716072912005061800000) .
Scheme 19
| PINPOINT TEST | DESCRIPTION |
|---|---|
| PINPOINT TEST 1 | THE STOPLAMPS ARE INOPERATIVE |
| PINPOINT TEST 2 | ONE OR MORE STOPLAMPS ARE INOPERATIVE |
| PINPOINT TEST 3 | THE STOPLAMPS ARE ON CONTINUOUSLY |
PINPOINT TEST
Scheme 20
Scheme 21
Scheme 22
Scheme 23
Scheme 24
Scheme 25
Scheme 26
- Verify the customer concern by operating the turn signal/hazard lamps.
- Visually inspect for obvious signs of mechanical and electrical damage. Visual Inspection Chart
- If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
- If the cause of the fault is not visually evident, proceed to the WDS or equivalent Tester diagnostics.
- If the concern remains after the inspection, connect the WDS or equivalent Tester to the data link connector (DLC) located beneath the instrument panel and select the vehicle to be tested from the WDS or equivalent Tester menu. If the WDS or equivalent Tester does not communicate with the vehicle: check that the program card is correctly installed. check the connections to the vehicle. check the ignition switch position.
- If the WDS or equivalent Tester still does not communicate with the vehicle, refer to the WDS or equivalent Tester manual.
- Carry out the DATA LINK DIAGNOSTIC TEST. If the WDS or equivalent Tester responds with: CKT914, CKT915 or CKT70 = ALL ECUS NO RESP/NOT EQUIP, refer to «COMMUNICATIONS NETWORK»(ref-178558-S32934034992005061700000) . NO RESP/NOT EQUIP for hybrid electronic cluster (instrument cluster), go to «SYMPTOM TROUBLESHOOTING CHART - HEADLAMPS»(ref-178647-S36980024892005061800000) . SYSTEM PASSED, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out self-test diagnostics for the instrument cluster.
- If the DTCs retrieved are related to the concern, go to the GEM Diagnostic Trouble Code (DTC) Index to continue diagnostics.
- If no DTCs related to the concern are retrieved, proceed to «SYMPTOM TROUBLESHOOTING CHART - TURN SIGNAL, CORNERING, AND HAZARD LAMPS»(ref-178647-S11763117032005061800000) .
Scheme 27
Scheme 28
Scheme 29
| PINPOINT TEST | DESCRIPTION |
|---|---|
| PINPOINT TEST 1 | THE TURN SIGNAL LAMPS ARE NEVER ON |
| PINPOINT TEST 2 | THE TURN SIGNAL LAMPS ARE ALWAYS ON |
| PINPOINT TEST 3 | THE HAZARD FLASHER LAMPS ARE NEVER ON |
| PINPOINT TEST 4 | THE HAZARD FLASHER LAMPS ARE ALWAYS ON |
| PINPOINT TEST 5 | ONE TURN SIGNAL/HAZARD LAMP IS NEVER ON |
| PINPOINT TEST 6 | ONE TURN SIGNAL/HAZARD LAMP IS ALWAYS ON |
PINPOINT TEST
Scheme 30
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Scheme 40
Scheme 41
- Verify the customer concern by operating the parking, rear and license lamps.
- Visually inspect for obvious signs of mechanical and electrical damage. Visual Inspection Chart
- If the fault is not visually evident, verify the symptom and proceed to «SYMPTOM TROUBLESHOOTING CHART - EXTERIOR, PARKING, REAR, AND LICENSE LAMPS»(ref-178647-S34463867482005061800000) .
Scheme 42
| PINPOINT TEST | DESCRIPTION |
|---|---|
| PINPOINT TEST 1 | THE EXTERIOR LAMP(S) ARE INOPERATIVE |
| PINPOINT TEST 2 | ONE OR MORE PARKING, REAR OR LICENSE LAMP IS INOPERATIVE |
| PINPOINT TEST 3 | THE PARKING, REAR OR LICENSE LAMPS ARE ON CONTINUOUSLY |
PINPOINT TEST
Scheme 43
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Scheme 45
Scheme 46
Scheme 47
Scheme 48
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Scheme 51
Scheme 52
- Verify the customer concern by operating the fog lamps.
- Visually inspect for obvious signs of mechanical and electrical damage. Visual Inspection Chart
- If the fault is not visually evident, verify the symptom and proceed to «SYMPTOM TROUBLESHOOTING CHART - FOG LAMPS»(ref-178647-S21606962302005061800000) .
Scheme 53
| PINPOINT TEST | DESCRIPTION |
|---|---|
| PINPOINT TEST 1 | THE FOG LAMPS ARE INOPERATIVE |
| PINPOINT TEST 2 | THE INDIVIDUAL FOG LAMP IS INOPERATIVE |
| PINPOINT TEST 3 | THE FOG LAMPS ARE ON CONTINUOUSLY |
PINPOINT TEST
Scheme 54
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Scheme 57
Scheme 58
Scheme 59
- Verify the customer concern by operating the backup lamps.
- Visually inspect for obvious signs of mechanical and electrical damage. Visual Inspection Chart
- If the fault is not visually evident, verify the symptom and proceed to «SYMPTOM TROUBLESHOOTING CHART - BACKUP LAMPS»(ref-178647-S06190554372005061800000) .
Scheme 60
| PINPOINT TEST | DESCRIPTION |
|---|---|
| PINPOINT TEST 1 | THE BACKUP LAMPS ARE INOPERATIVE |
| PINPOINT TEST 2 | THE INDIVIDUAL BACKUP LAMP IS INOPERATIVE |
| PINPOINT TEST 3 | THE BACKUP LAMPS ARE ON CONTINUOUSLY |
PINPOINT TEST
Scheme 61
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Scheme 63
Scheme 64
- Verify the customer concern by operating the trailer tow lights.
- Verify the exterior lighting system of the vehicle is operating correctly. If not, refer to the appropriate pinpoint test in this section.
- Visually inspect for obvious signs of electrical damage. Visual Inspection Chart
- If the fault is not visually evident, determine the symptom and proceed to «SYMPTOM TROUBLESHOOTING CHART - TRAILER LAMPS»(ref-178647-S36251269362005061800000) .
Scheme 65
Scheme 66
| PINPOINT TEST | DESCRIPTION |
|---|---|
| PINPOINT TEST 1 | THE TRAILER LAMPS ARE INOPERATIVE |
| PINPOINT TEST 2 | THE INDIVIDUAL TRAILER LAMPS IS INOPERATIVE - BOTH TRAILER TURN SIGNALS/STOPLAMPS/HAZARD LAMPS |
| PINPOINT TEST 3 | THE INDIVIDUAL TRAILER LAMPS IS INOPERATIVE - RH TRAILER TURN SIGNALS/STOPLAMPS/HAZARD LAMPS |
| PINPOINT TEST 4 | THE INDIVIDUAL TRAILER LAMPS IS INOPERATIVE - LH TRAILER TURN SIGNALS/STOPLAMPS/HAZARD LAMPS |
| PINPOINT TEST 5 | THE INDIVIDUAL TRAILER LAMPS IS INOPERATIVE - PARKING LAMPS |
PINPOINT TEST