Mazda Specific Codes
Useful Diagnostic Procedures
Pin1 - GMCAN (low speed, Single -wire)
Pin 3 - Discretionary
Pin 1 - GM CAN (Low speed, single wire)
Pin 2 - SAE J1850-VPW Positive
Pin 3 - Discretionary*
Pin 4 - Chassis Ground
Pin 5 - Signal Ground
Pin 6 - ISO 15765-4 CAN high
Pin 7 - ISO 9141-2 & ISO 14230-4 K-Line
Pin 8 - Discretionary*
Pin 9 - GM ALDL (OBD-I 8192 bps)
Pin 10 - SAE J1850-VPW
Pin 11 - Discretionary*
Pin 12 - Discretionary*
Pin 13 - Discretionary
Pin 14 - ISO 15765-4 CAN Low
Pin 15 - ISO 9141-2 & ISO 14230-4 Line
Pin 16 - Unswitched Battery Power
Female OBDII Socket in Car
fig. Examples of OBDII Testers
Prices around £34+
Prices around £12-15
Workshop
Diagnostic Procedures
Diagnostic Pages
D1
D2
D1a
D3
D3
D4
Page DP-3-3
Mazda XR 8 evolve Workshop
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P1772 Throttle Position Sensor Circuit Shorted to Transmission Control Module
P1780 Transmission Control Switch Circuit
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P1781 Transmission 4x4 Low Switch out of Range Fault
P1783 Transmission Fluid Temperature High Input
P1788 3-2T/CCS Circuit Open
P1789 3-2T/CCS Circuit Shorted
P1794 Powertrain Control Module Battery Direct Power Circuit
P1797 P/N Switch Open or Short Circuit
P1900 Turbine Speed Sensor Circuit Intermittent
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