Table of diagnostic codes

88 start of test (diagnostic tool readout only)
11 engine not cranked since battery disconnect
12 memory standby power recently lost
13 MAP sensor pneumatic circuit*
14 MAP sensor electrical circuit*
15 vehicle distance sensor circuit**
16 battery voltage sense*
17 engine running too cool
21 oxygen sensor circuit**
22 coolant temperature sensor circuit**
23 charge temperature sensor circuit**
24 throttle position sensor circuit*
25 AIS motor drive circuit**
26 injector current limit not achieved**
27 injector driver interface circuit
31 purge solenoid circuit**
32 EGR diagnostics(California)**
33 A/C cutout relay circuit
34 speed control solenoid driver circuit
35 radiator fan relay control circuit
37 part throttle unlock solenoid driver circuit
41 charging system excess or no field current
42 auto shutdown relay driver circuit
43 ignition coil control circuit
44 loss of FJ2 to logic board
46 battery voltage too high*
47 battery voltage too low
51 lean condition indicated**
52 rich condition indicated**
53 internal module problem
54 distributor high data rate pickup circuit**
55 end of message
* check engine lamp on
** check engine lamp on (California only)