[35B] ANTI-SKID BRAKING SYSTEM (ABS) - - TROUBLESHOOTING - DIAGNOSTIC TROUBLE CODE PROCEDURES - Code No. 32 G-sensor <4WD> | PRINT PAGE / INDEX / PRIOR / NEXT

Code No. 32 G-sensor <4WD>
CIRCUIT OPERATION The G-sensor detects the acceleration level in the forward/reverse direction of the vehicle, converts the signals into voltage signals and then sends that signal to the ABS-ECU.
DIAGNOSIS CODE SET CONDITIONS This code is output in the following case. When the G-sensor output is 1.0V or lower or 4.0V or higher (disconnected G-sensor or G-sensor short circuit) If the G-sensor output power does not change (G-sensor output fastening).
TROUBLESHOOTING HINTS The most likely causes for diagnosis code is to set are: Malfunction of the G-sensor Damaged wiring harness and connector Malfunction of the hydraulic unit (integrated with ABS-ECU)
| DIAGNOSIS
| STEP 1. MUT-II/III data list. Set MUT-II/III to data reading mode, and check the data list item. Item 32: G-sensor OK: When vehicle is stationary (level): 2.4 - 2.6 V When vehicle is being driven: 1.0 - 4.0 V Q: Is the G-sensor input normal? YES: This malfunctions is intermittent. Refer to GROUP 00, How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction. NO: Go to Step 2.
| STEP 2. Measure the voltage at G-sensor connector D-32. Disconnect connector D-32, and check at the harness side. Turn the ignition switch to the "ON" position. Measure the voltage between terminal 1 and earth. OK: System voltage Q: Is the check result normal? YES: Go to Step 3. NO: Go to Step 4.
| STEP 3. Measure the resistance at G-sensor connector D-32. Disconnect connector D-32, and check at the harness side. Measure the resistance between terminal 3 and earth. OK: 2 ohms or less Q: Is the check result normal? YES: Go to Step 6. NO: Go to Step 5.
| STEP 4. Check the harness wire between junction block connector C-202 terminal 8 and G-sensor connector D-32 terminal 1. NOTE: After inspecting intermediate connector C-106, inspect the wire. If intermediate connector C-106 is damaged, repair or replace it. Then go to Step 8. Q: Is the harness wire between junction block connector C-202 terminal 8 and G-sensor connector D-32 terminal 1 damaged? YES: Repair it and go to Step 8. NO: Go to Step 8.
| STEP 5. Check the harness wire between G-sensor connector D-32 terminal 3 and ABS-ECU connector B-03 terminal 8. Q: Is the harness wire between G-sensor connector D-32 terminal 3 and ABS-ECU connector B-03 terminal 8 damaged? YES: Repair it and go to Step 8. NO: Erase the diagnosis code memory, and recheck if any diagnosis code sets. If diagnosis code No. 32 sets, replace the hydraulic unit (integrated with ABS-ECU) and then go to step 8 .
| STEP 6. Check G-sensor output voltage.
| Disconnect connector D-32, and connect special tool harness set (MB991348) between terminals of the disconnected connector. Turn the ignition switch to the "ON" position. Measure the voltage between terminal 2 and earth. OK: When vehicle is stationary (level): 2.4 - 2.6 V When vehicle is being driven: 1.0 - 4.0 V Q: Is G-sensor output voltage normal? YES: Go to Step 7. NO: Replace the G-sensor and go to Step 8.
| STEP 7. Check the harness wire between G-sensor connector D-32 terminal 2 and ABS-ECU connector B-03 terminal 15. Q: Is the harness wire between G-sensor connector D-32 terminal 3 and ABS-ECU connector B-03 terminal 15 damaged? YES: Repair it and go to Step 8. NO: Erase the diagnosis code memory, and recheck if any diagnosis code sets. If diagnosis code No. 32 sets, replace the hydraulic unit (integrated with ABS-ECU) and then go to step 8 .
| STEP 8. Check whether the diagnosis code is reset. Q: Does diagnosis code No. 32 reset? YES: Start over at Step 1. NO: The procedure is complete.

[35B] ANTI-SKID BRAKING SYSTEM (ABS) - - TROUBLESHOOTING - DIAGNOSTIC TROUBLE CODE PROCEDURES - Code No. 32 G-sensor <4WD> | PRINT PAGE / INDEX / PRIOR / NEXT

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