Mazda Trucks 1987-1993 Repair Guide

Code Description

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PICKUP AND MPV



Except Feedback Carbureted Models


Code 01-Ignition Pulse
 
Code 02-Crank Angle Sensor
 
Code 06-Vehicle Speed Sensor
 
Code 08-Air Flow Meter
 
Code 09-Water Temperature Sensor
 
Code 10-Intake Air Temperature at Airflow Meter
 
Code 11-Intake Air Temperature at Dynamic Chamber
 
Code 12-Throttle Sensor
 
Code 14-ECA Atmospheric Pressure Sensor
 
Code 15-Oxygen Sensor or Circuit
 
Code 16-EGR Position Sensor
 
Code 17-Oxygen Sensor Feedback System
 
Code 23-Right Side Oxygen Sensor
 
Code 24-Right Side Oxygen Sensor Feedback System
 
Code 25-Pressure Regulator Solenoid Valve
 
Code 26-Purge Control Solenoid Valve
 
Code 28-EGR Vacuum Solenoid Valve
 
Code 29-EGR Vent Solenoid Valve
 
Code 30-Cold Start Injector Relay
 
Code 34-Idle Speed Control Valve
 
Code 55-Pulse Generator
 

Feedback Carbureted Models


Code 01-Ignition Pulse
 
Code 09-Water Temperature Sensor
 
Code 13-Vacuum Sensor
 
Code 14-Atmospheric Pressure Sensor
 
Code 15-Oxygen Sensor Open or Short
 
Code 17-Oxygen Sensor Feedback System
 
Code 18-Air/Fuel Solenoid Valve
 
Code 22-Slow Fuel Cut Solenoid Valve
 
Code 23-Coasting Richer Solenoid Valve
 
Code 26-Purge Solenoid Valve
 
Code 28-Duty Solenoid Vacuum Valve
 
Code 29-Duty Solenoid Vent Valve
 
Code 30-Air Control Valve Solenoid
 
Code 34-Idle-Up Solenoid Valve for AC
 
Code 35-Idle-Up Solenoid Valve for AT
 
Code 45-Vacuum Solenoid Valve
 

NAVAJO



2 Digit Codes


Code 11-System pass
 
Code 12-Cannot control rpm during high rpm check
 
Code 13-Cannot control rpm during low rpm check
 
Code 14-PIP circuit failure
 
Code 15-ECA keep alive only memory (KAM) test failed
 
Code 15-ECA read only memory (ROM) test failed
 
Code 16-IDM signal not received
 
Code 18-Loss of IDM input or SAW circuit open
 
Code 19-Failure in ECA internal voltage
 
Code 21-ECT out of range
 
Code 22-Barometric Pressure (BP) sensor
 
Code 23-TP sensor out of self-test range
 
Code 24-ACT sensor out of self-test range
 
Code 26-MAF out of self-test range
 
Code 29-Insufficient input from VSS
 
Code 41-Fuel system adaptive limits, no HEGO switch
 
Code 41-Lack of HEGO switches, indicates lean
 
Code 42-Lack of HEGO switches, indicates rich
 
Code 45-Coil 1, 2, or 3 failure
 
Code 51-ECT indicated - 40°F (4.4°C) open circuit
 
Code 53-TP sensor circuit above maximum voltage
 
Code 54-ACT indicated - 40°F (4.4°C) open circuit
 
Code 56-MAF circuit above maximum voltage
 
Code 61-ECT indicated 254°F (123°C) grounded circuit
 
Code 63-TP sensor voltage below minimum voltage
 
Code 64-ACT indicated 254°F (123°C) grounded circuit
 
Code 66-MAF below minimum voltage
 
Code 67-Clutch switch circuit failure
 
Code 67-Vehicle not in Park during KOEO
 
Code 72-Insufficient MAF change during test
 
Code 73-Insufficient TP change dynamic response test
 
Code 74-BOO circuit failure/not actuated during self-test
 
Code 77-Operator error during test
 
Code 79-A/C ON/ Defroster ON/ during self-test
 
Code 86-Shift solenoid circuit failure
 
Code 87-Primary fuel pump circuit failure
 
Code 89-Clutch Converter Override (CCO) circuit failure
 
Code 95-Fuel pump circuit open - ECA to motor ground
 
Code 96-Fuel pump circuit open - ECA to battery
 
Code 98-Hard fault present
 
Code not listed
 

3 Digit Codes


Code 111-System pass
 
Code 112-ACT indicated 254°F (123°C) grounded circuit
 
Code 113-ACT indicated - 40°F (4.4°C) open circuit
 
Code 114-ACT sensor out of self-test range
 
Code 116-ECT out of range
 
Code 117-ECT indicated 254°F (123°C) grounded circuit
 
Code 118-ECT indicated - 40°F (4.4°C) open circuit
 
Code 121-TP sensor out of self-test range
 
Code 122-TP sensor circuit below minimum voltage
 
Code 123-TP sensor circuit above maximum voltage
 
Code 126-Barometric Pressure (BP) sensor
 
Code 128-Barometric Pressure (BP) sensor
 
Code 129-Insufficient MAF change during test
 
Code 136-Fuel control
 
Code 137-Fuel control
 
Code 139-Fuel control
 
Code 144-Fuel control
 
Code 157-MAF below minimum voltage
 
Code 158-MAF circuit above maximum voltage
 
Code 159-MAF out of self-test range
 
Code 167-Insufficient TP change dynamic response test
 
Code 171-Fuel system at adaptive limits, no HEGO switch
 
Code 172-Lack of HEGO switches, indicates lean
 
Code 173-Lack of HEGO switches, indicates rich
 
Code 174-Fuel control
 
Code 175-Fuel control
 
Code 176-Fuel control
 
Code 177-Fuel control
 
Code 178-Fuel control
 
Code 179-Lean adaptive limit at part throttle, system rich
 
Code 181-Rich adaptive limit at part throttle, system lean
 
Code 182-Fuel control
 
Code 183-Fuel control
 
Code 188-Fuel control
 
Code 189-Fuel control
 
Code 191-Fuel control
 
Code 192-Fuel control
 
Code 194-Fuel control
 
Code 195-Fuel control
 
Code 211-PIP circuit failure
 
Code 212-Loss of IDM input or SAW circuit grounded
 
Code 213-SAW circuit open
 
Code 215-Ignition system
 
Code 216-Ignition system
 
Code 217-Ignition system
 
Code 218-Ignition system
 
Code 222-Ignition system
 
Code 223-IDM signal not received
 
Code 224-IDM signal not received
 
Code 226-IDM signal
 
Code 232-Coil 1, 2, or 3 failure
 
Code 238-Ignition system
 
Code 338-Temperature sensor
 
Code 339-Temperature sensor
 
Code 341-Octane adjust circuit open
 
Code 411-Cannot control rpm during low rpm check
 
Code 412-Cannot control rpm during high rpm check
 
Code 452-Insufficient input from VSS
 
Code 511-ECA read only memory (ROM) test failed
 
Code 512-ECA keep alive only memory (KAM) test failed
 
Code 513-Failure in ECA internal voltage
 
Code 522-Vehicle not in P or N during KOEO
 
Code 525-Vehicle not in P or N durung KOEO
 
Code 528-Clutch switch circuit failure
 
Code 529-Check Engine light
 
Code 533-Check Engine light
 
Code 536-BOO circuit failure/not actuated during self-test
 
Code 538-Operator error during test
 
Code 539-A/C ON/ Defroster ON/ during self-test
 
Code 542-Fuel pump circuit open - ECA to motor guard
 
Code 542-Fuel pump circuit open - ECA to battery
 
Code 556-Primary fuel pump circuit failure
 
Code 565-Canister purge (CANP) circuit failure
 
Code 566-Shift solenoid circuit failure
 
Code 569-Canister purge (CANP) circuit failure
 
Code 629-Clutch Converter Override (CCO) circuit failure
 
Code 998-Hard fault present
 
Code not listed
 
600 series codes are transmission codes
 

 
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