Page 354 - Understanding Automotive Electronics

2735 | CH 10 Page 341 Tuesday, March 10, 1998 1:27 PM

DIAGNOSTICS 10

Table 10.1
Summary of Fault Codes
Circuit Affected Two-Digit Fault Code
No distributor signal 12
EGO sensor not ready 13
Coolant sensor circuit (short) 14
Coolant sensor (open) 15
Generator voltage out of range 16
Crank signal (short) 17
Crank signal (open) 18
Fuel pump circuit (short) 19
Fuel pump circuit (open) 20
Throttle position sensor circuit (short) 21
Throttle position sensor (open) 22
Ignition/Bypass 23
Engine speed sensor 24
Throttle switch (short) 26
Throttle switch (open) 27
Idle speed control 30
MAP sensor circuit (short) 31
MAP sensor circuit (open) 32
MAP/Baro sensor correlation 33
MAP signal too high 34
Baro sensor circuit (short) 35
Baro sensor circuit (open) 36
Manifold air temp (short) 37
Manifold air temp (open) 38
Lean exhaust signal 44
Rich exhaust signal 45
PROM error indicator 51
Transmission not in drive 60
“Set” and “resume” circuits engaged simultaneously 61
Car speed exceeds maximum limit 62
Car and set speed tolerance exceeded 63
Car acceleration exceeds maximum limit 64
System ready for further tests 70
Cruise control brake circuit test 71

UNDERSTANDING AUTOMOTIVE ELECTRONICS 341