B1353
Ignition Key-In Circuit Open
GEM
Go to Pinpoint Test B .
PINPOINT TEST B: THE KEY-IN-IGNITION CHIME DOES NOT OPERATE CORRECTLY
Do you know what the GEM - genaric electronic control is ?
You need a scan tool to check ignition switch position .Don't know if this would cause a no start . Have you check for ignition spark and fuel pressure ? Are there anyother problems with power door locks or windows or lighting ? Thing's the GEM controls ?
CONDITIONS
DETAILS/RESULTS/ACTIONS
B1 CHECK IGNITION STATES
NGS
Monitor the GEM PIDS IGN_KEY, IGN_A, IGN_S, and IGN_R while cycling the ignition switch through the OFF, ACC, RUN, START and key out positions.
- Do the PID values agree with the ignition switch states?
Yes GO to B2 .
No GO to B4 .
B2 CHECK GEM INTERNAL TONE OPERATION
Trigger the GEM Active Command CHIME ON and OFF.
- Does the chime operate correctly?
Yes GO to B3 .
No INSTALL a new GEM. For additional information, REFER to Section 419-10 . REPEAT the self test. CLEAR the DTCs.
B3 CHECK GEM INPUT FROM DOOR AJAR CIRCUIT
Monitor the GEM PID D_DR_SW, while opening and closing the driver door.
- Do the GEM PID D_DR_SW values indicate CLOSED and AJAR correctly?
Yes INSTALL a new GEM. For additional information, REFER to Section 419-10 . REPEAT the self test. CLEAR the DTCs.
No GO to Pinpoint Test D .
B4 CHECK GEM INPUT VOLTAGE FROM IGNITION SWITCH AT CJB FUSE 28 (15A)
CJB Fuse 28 (15A)
Measure the voltage between CJB Fuse 28 (15A), Pin 1, harness side and ground while cycling the ignition switch through all positions.
- Is the voltage greater than 10 volts in the RUN and START positions only?
Yes GO to B5 .
No REPAIR the CJB. REPEAT the self test. CLEAR the DTCs.
B5 CHECK GEM INPUT VOLTAGE FROM IGNITION SWITCH AT CJB FUSE 32 (15A)
CJB Fuse 32 (15A)
Measure the voltage between CJB Fuse 32 (15A), Pin 1, harness side and ground while cycling the ignition switch through all positions.
- Is the voltage greater than 10 volts in the RUN and ACC positions only?
Yes GO to B6 .
No REPAIR the CJB. REPEAT the self test. CLEAR the DTCs.
B6 CHECK GEM VOLTAGE INPUT CIRCUITS FOR OPEN - IGNITION SWITCH CIRCUIT 911 (WH/LG)
CJB Fuse 28 (15A)
GEM C352
Insert ignition key. Measure the resistance between GEM C352 Pin 8, Circuit 911 (WH/LG), harness side and CJB Fuse 28 (15A) Pin 2, Circuit 911 (WH/LG), harness side.
- Is the resistance less than 5 ohms?
Yes GO to B7 .
No REPAIR Circuit 911 (WH/LG). REPEAT the self test. CLEAR the DTCs.
B7 CHECK GEM VOLTAGE INPUT CIRCUITS FOR OPEN - IGNITION SWITCH CIRCUIT 1002 (BK/PK)
Measure the resistance between GEM C352 Pin 22, Circuit 1002 (BK/PK), harness side and CJB Fuse 32 (15A), Pin 2, Circuit 1002 (BK/PK), harness side.
- Is the resistance less than 5 ohms?
Yes GO to B8 .
No REPAIR Circuit 1002 (BK/PK). REPEAT the self test. CLEAR the DTCs.
B8 CHECK GEM INPUT CIRCUIT FOR OPEN - KEY-IN-IGNITION SWITCH CIRCUIT 158 (BK/PK)
Measure the resistance between GEM C352 Pin 9, Circuit 158 (BK/PK), harness side and ground.
- Is the resistance less than 5 ohms?
Yes GO to B9 .
No REPAIR Circuit 158 (BK/PK) and key-in-ignition switch for failure. For additional information, REFER to Switch-Key-In-Ignition Warning . REPEAT the self test. CLEAR the DTCs.
B9 CHECK GEM VOLTAGE INPUT CIRCUITS FOR SHORT TO POWER - IGNITION SWITCH CIRCUITS 911 (WH/LG), AND 1002 (BK/PK)
CJB Fuse 28 (15A)
CJB Fuse 32 (15A)
GEM C352
Remove ignition key. Measure the voltage between GEM C352 Pin 8, Circuit 911 (WH/LG), harness side and ground, and between GEM C352 Pin 22, Circuit 1002 (BK/PK), harness side and ground.
- Are voltages greater than 10 volts?
Yes REPAIR the circuit in question. REPEAT the self test. CLEAR the DTCs.
No GO to B10 .
B10 CHECK GEM INPUT CIRCUIT FOR SHORT TO GROUND -- KEY-IN-IGNITION SWITCH CIRCUIT 158 (BK/PK)
GEM C352
Remove ignition key. Measure the resistance between GEM C352 Pin 9, Circuit 158 (BK/PK), harness side and ground.
- Is the resistance greater than 10,000 ohms?
Yes INSTALL a new GEM. For additional information, REFER to Section 419-10 . REPEAT the self test. CLEAR the DTCs.
No REPAIR Circuit 158 (BK/PK). REPEAT the self test. CLEAR the
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