TBI Service Code Definitions: TBI
TBI SERVICE CODE DEFINITIONS
| Service Code | Test Condition(s) | Definition |
|---|---|---|
| 11 | KOEO/KOER/ CONTINUOUS | System Pass |
| 12 | KOER | Cannot control RPM during Self-Test High RPM check |
| 13 | KOER | Cannot control RPM during Self-Test Low RPM check |
| 13 | KOEO | DC motor movement not detected |
| 13 | CONTINUOUS | DC motor did not follow dashpot |
| 14 | CONTINUOUS | PIP circuit failure |
| 15 | KOEO | ECA Read Only Memory (ROM) Test Failed |
| 16 | KOER | Idle RPM High with ISC retracted (OFF) |
| 17 | KOER | Idle RPM Low with ISC retracted (OFF) |
| 18 | KOER | SPOUT circuit open |
| 18 | CONTINUOUS | IDM circuit failure/SPOUT circuit grounded |
| 19 | KOER | RPM for EGR test not achieved |
| 21 | KOER/KOEO | ECT sensor input is out of Self-Test Range |
| 22 | KOEO/KOER/ CONTINUOUS | MAP/BP sensor input is out of Self-Test Range |
| 23 | KOEO/KOER/ CONTINUOUS | TP sensor input is out of Self-Test Range |
| 24 | KOER/KOEO | ACT sensor input is out of Self-Test Range |
| 26 | KOEO/KOER | VAF sensor is out of Self-Test range |
| 28 | KOEO/KOER | VAT sensor is out of Self-Test range |
| 31 | KOEO/KOER/ CONTINUOUS | PFE circuit is below minimum range |
| 32 | KOER/CONTINUOUS | EPT circuit voltage low (PFE) |
| 33 | KOER/CONTINUOUS | EGR valve opening not detected |
| 34 | KOEO | Defective PFE sensor |
| 34 | KOER/CONTINUOUS | EPT sensor voltage high (PFE) |
| 35 | KOER/CONTINUOUS | PFE circuit above maximum voltage |
| 38 | CONTINUOUS | Idle Tracking Switch (ITS) circuit open |
| 41 | KOER | HEGO sensor circuit indicates lean |
| 41 | CONTINUOUS | No HEGO switching detected - indicates lean |
| 42 | KOER | HEGO sensor circuit indicates rich |
| 51 | KOEO/CONTINUOUS | ECT sensor -40°F circuit open |
| 53 | KOEO/CONTINUOUS | TP sensor input is greater than Self-Test maximum |
| 54 | KOEO/CONTINUOUS | ACT sensor -40°F circuit open |
| 55 | KOER | Keypower circuit open |
| 56 | KOEO/CONTINUOUS | VAF circuit above maximum voltage |
| 58 | KOEO | Idle Tracking Switch (ITS) circuit open |
| 58 | KOER | Idle Tracking Switch (ITS) closed/circuit grounded |
| 61 | KOEO/CONTINUOUS | ECT sensor indicated 254°F circuit grounded |
| 63 | KOEO/CONTINUOUS | TP sensor input is less than Self-Test minimum |
| 64 | KOEO/CONTINUOUS | ACT sensor 254°F input is less than Self-Test minimum/circuit grounded |
| 67 | KOEO/KOER | Neutral Drive Switch (NDS) circuit open; A/C input High |
| 67 | CONTINUOUS | Clutch switch circuit failure |
| 68 | KOEO | Idle Tracking Switch (ITS) circuit failed closed/grounded |
| 68 | KOER | Idle Tracking Switch (ITS) failed open |
| 71 | CONTINUOUS | Idle Tracking Switch (ITS) grounded on pre-position |
| 73 | KOEO | Insufficient throttle position change |
| 84 | KOER/CONTINUOUS | EGR Vacuum Regulator (EVR) circuit failure |
| 85 | KOEO | Canister Purge (CANP) circuit failure |
| 86 | CONTINUOUS | Adaptive fuel rich limit reached |
| 87 | KOEO/KOER/ CONTINUOUS | Fuel pump primary circuit failure |
| 93 | KOEO | Throttle Position Sensor (TPS) input low at maximum DC motor extension |
| 95 | KOEO/CONTINUOUS | Fuel pump secondary circuit failure/open - ECA to motor ground |
| 96 | KOEO/CONTINUOUS | Fuel pump secondary circuit failure/open - Battery to ECA |
| 98 | KOER | Hard fault is present |
| 99 | KOER | EEC system has not learned to control idle, IGNORE Codes 12 & 13 |
| NO CODES | N/A | Unable to initiate Self-Test or unable to output Self-Test codes |
| CODES NOT LISTED | N/A | Service codes displayed are not applicable to vehicle being tested |