Fig. 42: Identifying Fuel Tank Pressure Sensor Wiring Harness Side Connector
Courtesy of MAZDA MOTORS CORP.
1. Disconnect the PCM connector. (See
PCM REMOVAL/INSTALLATION [MZI-3.7]
.)
2. Disconnect the fuel tank pressure sensor connector.
3. Inspect the following wiring harnesses for open or short. (Continuity inspection)
Open circuit
z
If there is no continuity, the circuit is open. Repair or replace the wiring harness.
{
Fuel tank pressure sensor terminal A and PCM terminal 1AB
{
Fuel tank pressure sensor terminal B and PCM terminal 1AL
{
Fuel tank pressure sensor terminal C and PCM terminal 1U
Short circuit
z
If there is continuity, the circuit is shorted. Repair or replace the wiring harness.
{
Fuel tank pressure sensor terminal A and power supply
{
Fuel tank pressure sensor terminal A and body ground
{
Fuel tank pressure sensor terminal B and power supply
{
Fuel tank pressure sensor terminal C and body ground
2008 Mazda CX-9 Grand Touring
2008 ENGINE Control System (MZI-3.7) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:07:19 AM
Page 46
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