TGB BLADE 600 Service Manual page 82

4-1. FUEL INJECTION SYSTEM
Is the voltage OK?
YES Go to next step 2
• Loose or poor contacts on the ECU
coupler terminal 1 or 27
NO
• Open or short circuit in the
Yellow/Black wire or Gray/Red wire
8) After repairing the trouble, clear the DTC
using Diagnosis tool.
Step 2
1) Connect the T-MAP sensor coupler.
2) Insert the needle pointed probes to the lead
wire coupler.
3) Start the engine at idle speed and measure
the T-MAP sensor output voltage at the wire
side coupler.
T-MAP sensor output voltage: Approx. 2.6 V
at idle speed
(+Yellow/Black – - Gray/Red)
Is the voltage OK?
YES •Yellow/Black or Gray/Red wire open
or shorted to ground, or poor 18, 30
or 1 connection.
• If wire and connection are OK,
intermittent trouble or faulty ECU.
• Recheck each terminal and wire
harness for open circuit and poor
connection.
• Replace the ECU with a known
good one, and inspect it again.
• If check result is not satisfactory,
NO
replace new T-MAP (throttle body).
5) After repairing the trouble, clear the DTC
using Diagnosis tool.
4-1-34