LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Suzuki >> 2006 >> Aerio SX, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Cruise Control Systems >> Diagnostic Information and Procedures >> Throttle Valve Opening Signal Circuit Check
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Throttle Valve Opening Signal Circuit Check

THROTTLE VALVE OPENING SIGNAL CIRCUIT STEP ACTION REFERENCE

Step Action YES NO
1  Engine control module (ECM) DTC check 
  1. Check DTC in ECM referring to DTC CHECK .

Is there a DTC related to throttle position sensor? 		 Check and repair TP sensor referring to THROTTLE POSITION (TP) SENSOR ON-VEHICLE INSPECTION . Go to Step 2.
2  Throttle valve opening signal circuit check 
  1. Turn ignition switch ON.
  2. Check voltage between terminal "G04-1" of ECM (1) connector connected and ground.
G04591781G04591782
G04591781G04591782

Does voltage vary linearly according to throttle opening? 		 Throttle valve opening signal circuit is OK. Go to Step 3.
3  Supply voltage check 
  1. Disconnect connector from ECM (1) with ignition switch OFF.
  2. Check for proper connection to ECM (1) at terminal "G04- 1".
  3. If OK, connect "PPL/WHT" wire terminal of main relay to ground with service wire.
  4. Turn ignition switch ON.
  5. Check voltage between "G04-1" of ECM (1) connector and ground.
G04591783

Is it 10 - 14 V? 		 Check TP sensor and circuits referring to THROTTLE POSITION (TP) SENSOR ON-VEHICLE INSPECTION . If OK, substitute a known-good PCM and recheck. Check "PPL/WHT" wire for open and short. If OK, proceed to cruise control module power and ground circuits check.
scientia non olet · About LEMON Manuals