SUMMARY
If no hard fault codes are present, driveability symptoms exist or intermittent codes exist, proceed to appropriate TESTS W/O CODES article in this section for diagnosis by symptom (i.e., ROUGH IDLE, NO START, etc.) or intermittent diagnostic procedures.
4.3L (VIN W) PCM Wiring Diagram (1 Of 3). Scheme 89
4.3L (VIN W) PCM Wiring Diagram (2 Of 3). Scheme 90
4.3L (VIN W) PCM Wiring Diagram (3 Of 3). Scheme 91
See also:
• BASIC TESTING
• TESTS W/O CODES
• SYSTEM/COMPONENT TESTS - 4.3L
• HARD OR INTERMITTENT TROUBLE CODE DETERMINATION
• DATA LINK CONNECTOR (DLC) TEST TERMINALS
• SCAN TESTER USAGE
• SCAN DATA
• CODE 11
• CODE 13
• CODE 14
• CODE 15
• CODE 16
• CODE 18
• CODE 21
• CODE 22
• CODE 23
• CODE 24
• CODE 25
• CODE 26
• CODE 27
• CODE 28
• CODE 29
• CODE 32
• CODE 33
• CODE 34
• CODE 36
• CODE 37
• CODE 38
• CODE 41
• CODE 42
• CODE 43
• CODE 44
• CODE 45
• CODE 46
• CODE 47
• CODE 48
• CODE 50
• CODE 52
• CODE 53
• CODE 55
• CODE 55
• CODE 58
• CODE 59
• CODE 63
• CODE 64
• CODE 65
• CODE 66
• CODE 67
• CODE 68
• CODE 69
• CODE 70
• CODE 72
• CODE 73
• CODE 75
• CODE 77
• CODE 78
• CODE 79
• CODE 81
• CODE 82
• CODE 83
• CODE 84
• CODE 85
• CODE 90
• CODE 95
• CODE 96
• CODE 97
• CLEARING TROUBLE CODES