P/S Control Module Power Supply and Ground Circuit Check

P/S Control Module Power Supply and Ground Circuit Check

Wiring Diagram










DTC Troubleshooting



1. Circuit fuse check

Disconnect P/S control module connector with ignition switch turned OFF.
Check for proper connection to P/S control module connector at "E13-1", "E13-2" and "C11-1" terminals.
If OK, check "P/S" fuse and "IG1 SIG" fuse for blowing.

Are "P/S" fuse and "IG1 SIG" fuse in good condition?
YES
Go to Step 2.
NO
Replace fuse (s) and check for short in circuits connected to fuse(s).

2. Power supply circuit check

Measure voltage between "E13-1" terminal of P/S control module connector and body ground.

Is voltage 10 - 14 V?
YES
Go to Step 3.
NO
"GRN" or "WHT" wire is open circuit.

3. Ignition signal check

Turn ignition switch to ON position.
Measure voltage between "E11-1" terminal of P/S control module connector and body ground.

Is voltage 10 - 14 V?
YES
Go to Step 4.
NO
"LT GRN / BLK" or "GRN" wire is open circuit.

4. P/S control module ground circuit check

Turn ignition switch to OFF position.
Disconnect connectors from P/S control module.
Measure resistance between "E13-2" terminals of P/S control module connector and body ground.

Is resistance 1ohms or less?
YES
Go to Step 5.
NO
"BLK" wire is open or high resistance circuit.

5. P/S control module ground circuit check

Connect connectors to P/S control module.
Start engine.
Measure voltage between "E13-2" terminals of P/S control module connector and body ground when steering wheel fully turned to left or right.

Is voltage 0.3 V or less?
YES
P/S Control Module Power Supply and Ground Circuit is in good condition.
NO
"BLK" wire is high resistance circuit.